feat(app): render current session timeline

packages/app/e2e/performance/timeline/session-parent-hydration-benchmark.spec.ts

@@ -41,7 +41,12 @@ const assistants = Array.from({ length: 14 }, (_, index) => {
 const messages = [user, ...assistants]
 const target = fixture.sessions.find((session) => session.id === fixture.targetID)!
 const lastID = userID
-const lastPartID = assistants.at(-1)!.parts.at(-1)!.id
+const lastAssistant = assistants.at(-1)!
+const lastPart = lastAssistant.parts.at(-1)!
+const lastPartID =
+  lastPart.type === "tool"
+    ? lastPart.id
+    : `${lastAssistant.info.id}:${lastPart.type}:${lastAssistant.parts.filter((part) => part.type === lastPart.type).length - 1}`
 
 benchmark("hydrates an orphaned latest turn after a cold session click", async ({ browser, report }, testInfo) => {
   benchmark.setTimeout(180_000)
@@ -107,9 +112,25 @@ async function trial(page: Page, mode: ParentHydrationBenchmarkMode) {
       return { items: items.slice(start, end), cursor: start > 0 ? items[start]!.info.id : undefined }
     },
   })
-  await page.route(`**/session/${fixture.targetID}`, (route) =>
-    route.fulfill({ status: 200, contentType: "application/json", body: JSON.stringify(target) }),
-  )
+  await page.route(`**/session/${fixture.targetID}`, (route) => {
+    const current = new URL(route.request().url()).pathname.startsWith("/api/")
+    return route.fulfill({
+      status: 200,
+      contentType: "application/json",
+      body: JSON.stringify(
+        current
+          ? {
+              data: {
+                ...target,
+                cost: 0,
+                tokens: { input: 0, output: 0, reasoning: 0, cache: { read: 0, write: 0 } },
+                location: { directory: target.directory },
+              },
+            }
+          : target,
+      ),
+    })
+  })
   await installStressSessionTabs(page, { sessionIDs: [fixture.sourceID] })
   await page.goto(stressSessionHref(fixture.sourceID))
   await expectSessionTitle(page, fixture.expected.sourceTitle)
@@ -144,8 +165,8 @@ async function trial(page: Page, mode: ParentHydrationBenchmarkMode) {
     parent: requests.filter((request) => request.type === "parent").length,
   }
   if (mode === "candidate") {
-    expect(requestCounts.parent).toBe(1)
-    expect(historyGates).toBe(1)
+    expect(requestCounts.parent).toBe(0)
+    expect(historyGates).toBe(0)
   }
   return { metrics, requestCounts, historyGateCount: historyGates }
 }

packages/app/e2e/regression/session-timeline-transport.spec.ts

@@ -89,7 +89,7 @@ test("reconnects after a stream error", async ({ page }) => {
   expect((await timeline.transport.connections())[0]?.endedBy).toBe("error")
 })
 
-test("records event IDs and reconnect Last-Event-ID headers", async ({ page }) => {
+test("does not request replay when reconnecting the volatile V2 event stream", async ({ page }) => {
   const timeline = await setupTimeline(page, { eventRetry: 10 })
   const first = await timeline.transport.send(partUpdated(textPart("prt_transport_id", "event with id")), {
     id: "timeline-event-7",
@@ -100,7 +100,7 @@ test("records event IDs and reconnect Last-Event-ID headers", async ({ page }) =
   const connection = await timeline.transport.waitForConnection({ after: first.connectionID })
 
   expect(first.eventID).toBe("timeline-event-7")
-  expect(connection.headers["last-event-id"]).toBe("timeline-event-7")
+  expect(connection.headers["last-event-id"]).toBeUndefined()
 })
 
 test("passes through non-event fetches", async ({ page }) => {

packages/app/e2e/utils/mock-server.ts

@@ -54,14 +54,18 @@ export async function mockOpenCodeServer(page: Page, config: MockServerConfig) {
     if (url.port !== targetPort && url.port !== appPort) return route.fallback()
 
     const path = url.pathname
-    if (path === "/global/event" || path === "/event") return sse(route, config.events?.(), config.eventRetry)
+    if (path === "/global/event" || path === "/event" || path === "/api/event") {
+      const events = config.events?.()
+      return sse(
+        route,
+        path === "/api/event"
+          ? [{ id: "evt_mock_connected", type: "server.connected", data: {} }, ...(events?.map(currentEvent) ?? [])]
+          : events,
+        config.eventRetry,
+      )
+    }
     if (path === "/global/health") return json(route, { healthy: true })
-    if (path === "/api/session")
-      return json(route, {
-        data: config.sessions.map((session) => v2Session(session, config.directory)),
-        cursor: {},
-      })
-    if (path === "/experimental/capabilities") return json(route, { backgroundSubagents: false })
+    if (path === "/experimental/capabilities") return json(route, { backgroundSubagents: true })
     if (path === "/permission")
       return json(route, typeof config.permissions === "function" ? config.permissions() : (config.permissions ?? []))
     if (path === "/question")
@@ -89,10 +93,122 @@ export async function mockOpenCodeServer(page: Page, config: MockServerConfig) {
         },
         data: [],
       })
+    if (path === "/api/agent")
+      return json(route, {
+        location: location(config),
+        data: [
+          {
+            id: "build",
+            name: "Build",
+            mode: "primary",
+            hidden: false,
+            request: { settings: {}, headers: {}, body: {} },
+            permissions: [],
+          },
+        ],
+      })
+    if (path === "/api/command") return json(route, { location: location(config), data: [] })
+    if (path === "/api/mcp") return json(route, { location: location(config), data: [] })
+    if (path === "/api/mcp/resource")
+      return json(route, { location: location(config), data: { resources: [], templates: [] } })
+    const integration = path.match(/^\/api\/integration\/([^/]+)$/)?.[1]
+    if (integration && route.request().method() === "GET")
+      return json(route, {
+        location: location(config),
+        data: { id: integration, name: integration, methods: [{ type: "key", label: "API key" }], connections: [] },
+      })
+    if (/^\/api\/integration\/[^/]+\/connect\/key$/.test(path) && route.request().method() === "POST")
+      return route.fulfill({ status: 204, headers: { "access-control-allow-origin": "*" } })
+    if (path === "/api/project") return json(route, [config.project])
+    if (path === "/api/project/current")
+      return json(route, { id: (config.project as { id?: string }).id, directory: config.directory })
+    if (path.startsWith("/api/project/") && route.request().method() === "PATCH") return json(route, config.project)
+    if (path === "/api/path")
+      return json(route, {
+        state: config.directory,
+        config: config.directory,
+        worktree: config.directory,
+        directory: config.directory,
+        home: "C:/OpenCode",
+      })
+    if (path === "/api/permission/request")
+      return json(route, {
+        location: location(config),
+        data: (typeof config.permissions === "function" ? config.permissions() : (config.permissions ?? [])).map(
+          currentPermission,
+        ),
+      })
+    if (path === "/api/question/request")
+      return json(route, {
+        location: location(config),
+        data: typeof config.questions === "function" ? config.questions() : (config.questions ?? []),
+      })
+    if (path === "/api/vcs")
+      return json(route, { location: location(config), data: { branch: "main", defaultBranch: "main" } })
+    if (path === "/api/vcs/status") return json(route, { location: location(config), data: [] })
+    if (path === "/api/vcs/diff") return json(route, { location: location(config), data: config.vcsDiff ?? [] })
+    if (path === "/api/pty/shells") return json(route, { location: location(config), data: [] })
+    if (/^\/api\/pty\/[^/]+\/connect-token$/.test(path))
+      return json(route, { location: location(config), data: { ticket: "e2e-ticket", expires_in: 60 } })
     if (emptyObject.has(path)) return json(route, {})
     if (emptyList.has(path)) return json(route, [])
+    if (path === "/api/session") {
+      const directory = url.searchParams.get("directory")
+      const parentID = url.searchParams.get("parentID")
+      const limit = Number(url.searchParams.get("limit") ?? 50)
+      const offset = Number(url.searchParams.get("cursor") ?? 0)
+      const sessions = config.sessions
+        .filter((session) => !directory || session.directory === directory)
+        .filter((session) => parentID !== "null" || session.parentID === undefined)
+        .filter((session) => {
+          const search = url.searchParams.get("search")?.toLowerCase()
+          return !search || String(session.title ?? "").toLowerCase().includes(search)
+        })
+      const ordered = url.searchParams.get("order") === "asc" ? sessions.toReversed() : sessions
+      const data = ordered.slice(offset, offset + limit)
+      const next = offset + limit < ordered.length ? String(offset + limit) : undefined
+      return json(route, {
+        data: data.map((session) => currentSession(session, config.directory)),
+        cursor: { next },
+      })
+    }
+    if (path === "/api/session/active") {
+      const statuses = (config.sessionStatus ?? {}) as Record<string, { type?: string }>
+      return json(route, {
+        data: Object.fromEntries(
+          Object.entries(statuses).flatMap(([id, status]) => (status.type === "idle" ? [] : [[id, { type: "running" }]])),
+        ),
+      })
+    }
+    if (/^\/api\/session\/[^/]+\/shell$/.test(path) && route.request().method() === "POST") {
+      return route.fulfill({ status: 204, headers: { "access-control-allow-origin": "*" } })
+    }
+    if (/^\/api\/session\/[^/]+\/question\/[^/]+\/(reply|reject)$/.test(path) && route.request().method() === "POST") {
+      return route.fulfill({ status: 204, headers: { "access-control-allow-origin": "*" } })
+    }
+    if (/^\/api\/session\/[^/]+\/permission\/[^/]+\/reply$/.test(path) && route.request().method() === "POST") {
+      return route.fulfill({ status: 204, headers: { "access-control-allow-origin": "*" } })
+    }
+    if (
+      /^\/api\/session\/[^/]+\/(archive|rename|interrupt|revert\/clear|revert\/commit)$/.test(path) &&
+      route.request().method() === "POST"
+    ) {
+      return route.fulfill({ status: 204, headers: { "access-control-allow-origin": "*" } })
+    }
+    if (/^\/api\/session\/[^/]+$/.test(path) && route.request().method() === "DELETE") {
+      return route.fulfill({ status: 204, headers: { "access-control-allow-origin": "*" } })
+    }
     if (path in staticRoutes) return json(route, staticRoutes[path])
 
+    const currentSessionMatch = path.match(/^\/api\/session\/([^/]+)$/)
+    if (currentSessionMatch) {
+      const session = config.sessions.find((item) => item.id === currentSessionMatch[1])
+      if (!session) return json(route, { error: "Session not found" }, undefined, 404)
+      return json(route, {
+        data: currentSession(session, config.directory),
+      })
+    }
+
     const sessionMatch = path.match(/^\/session\/([^/]+)$/)
     if (sessionMatch) {
       const session = config.sessions.find((s) => s.id === sessionMatch[1])
@@ -115,6 +231,24 @@ export async function mockOpenCodeServer(page: Page, config: MockServerConfig) {
     if (todoMatch) return json(route, config.todos?.(todoMatch[1]!) ?? [])
     if (/^\/session\/[^/]+\/(children|diff)$/.test(path)) return json(route, [])
 
+    const currentMessagesMatch = path.match(/^\/api\/session\/([^/]+)\/message$/)
+    if (currentMessagesMatch) {
+      const token = url.searchParams.get("cursor") ?? undefined
+      const before = token ? cursors.get(token) : undefined
+      if (token && !before) return json(route, { error: "Invalid cursor" }, undefined, 400)
+      config.onMessages?.({ sessionID: currentMessagesMatch[1], before, phase: "start" })
+      await config.beforeMessagesResponse?.({ sessionID: currentMessagesMatch[1]!, before })
+      if (config.messageDelay !== undefined) await new Promise((resolve) => setTimeout(resolve, config.messageDelay))
+      const pageData = config.pageMessages(currentMessagesMatch[1], Number(url.searchParams.get("limit") ?? 50), before)
+      config.onMessages?.({ sessionID: currentMessagesMatch[1], before, phase: "end" })
+      const cursor = pageData.cursor ? `cursor_${++nextCursor}` : undefined
+      if (cursor) cursors.set(cursor, pageData.cursor!)
+      return json(route, {
+        data: pageData.items.map(currentMessage).reverse(),
+        cursor: { next: cursor },
+      })
+    }
+
     const messagesMatch = path.match(/^\/session\/([^/]+)\/message$/)
     if (messagesMatch) {
       const token = url.searchParams.get("before") ?? undefined
@@ -137,12 +271,36 @@ export async function mockOpenCodeServer(page: Page, config: MockServerConfig) {
   })
 }
 
-function v2Session(session: { id: string } & Record<string, unknown>, fallbackDirectory: string) {
+function location(config: MockServerConfig) {
+  return {
+    directory: config.directory,
+    project: { id: (config.project as { id?: string }).id, directory: config.directory },
+  }
+}
+
+function currentPermission(value: unknown) {
+  const permission = value as Record<string, unknown>
+  if (permission.action) return permission
+  const tool = permission.tool as { messageID?: string; callID?: string } | undefined
+  return {
+    id: permission.id,
+    sessionID: permission.sessionID,
+    action: permission.permission,
+    resources: permission.patterns ?? [],
+    save: permission.always,
+    metadata: permission.metadata,
+    source: tool?.messageID && tool.callID ? { type: "tool", messageID: tool.messageID, callID: tool.callID } : undefined,
+  }
+}
+
+export function currentSession(session: { id: string } & Record<string, unknown>, fallbackDirectory?: string) {
   const time = session.time && typeof session.time === "object" ? session.time : {}
   return {
     id: session.id,
     parentID: session.parentID,
     projectID: session.projectID ?? "project",
+    agent: session.agent ?? "build",
+    model: session.model ?? { id: "mock-model", providerID: "mock-provider" },
     cost: session.cost ?? 0,
     tokens: session.tokens ?? { input: 0, output: 0, reasoning: 0, cache: { read: 0, write: 0 } },
     time: {
@@ -157,7 +315,67 @@ function v2Session(session: { id: string } & Record<string, unknown>, fallbackDi
       directory: typeof session.directory === "string" ? session.directory : fallbackDirectory,
       ...(typeof session.workspaceID === "string" ? { workspaceID: session.workspaceID } : {}),
     },
-    ...(typeof session.path === "string" ? { subpath: session.path } : {}),
+    subpath: session.path,
+    revert: session.revert,
+  }
+}
+
+function currentMessage(value: unknown) {
+  const item = value as {
+    info: Record<string, unknown> & { id: string; role: "user" | "assistant"; time: { created: number } }
+    parts: Array<Record<string, unknown> & { type: string }>
+  }
+  if (item.info.role === "user") {
+    return {
+      id: item.info.id,
+      type: "user",
+      time: item.info.time,
+      text: item.parts
+        .flatMap((part) => (part.type === "text" && typeof part.text === "string" ? [part.text] : []))
+        .join("\n"),
+    }
+  }
+  return {
+    id: item.info.id,
+    type: "assistant",
+    time: item.info.time,
+    agent: item.info.agent ?? "build",
+    model: { id: item.info.modelID ?? "model", providerID: item.info.providerID ?? "provider" },
+    cost: item.info.cost,
+    tokens: item.info.tokens,
+    error: item.info.error,
+    content: item.parts.flatMap<unknown>((part) => {
+      if (part.type === "text" || part.type === "reasoning") return [{ type: part.type, text: part.text ?? "" }]
+      if (part.type !== "tool") return []
+      const state = part.state as Record<string, unknown>
+      return [
+        {
+          type: "tool",
+          id: part.id,
+          name: part.tool,
+          time: state.time ?? { created: item.info.time.created },
+          state:
+            state.status === "pending"
+              ? { status: "streaming", input: state.raw ?? JSON.stringify(state.input ?? {}) }
+              : state.status === "completed"
+                ? {
+                    status: "completed",
+                    input: state.input ?? {},
+                    structured: state.metadata ?? {},
+                    content: [{ type: "text", text: state.output ?? "" }],
+                  }
+                : state.status === "error"
+                  ? {
+                      status: "error",
+                      input: state.input ?? {},
+                      structured: state.metadata ?? {},
+                      content: [],
+                      error: { type: "ToolError", message: state.error ?? "Tool failed" },
+                    }
+                  : { status: "running", input: state.input ?? {}, structured: state.metadata ?? {}, content: [] },
+        },
+      ]
+    }),
   }
 }
 
@@ -181,3 +399,18 @@ function sse(route: Route, events?: unknown[], retry?: number) {
     body: `${retry === undefined ? "" : `retry: ${retry}\n\n`}${events?.map((event) => `data: ${JSON.stringify(event)}\n\n`).join("") || ": ok\n\n"}`,
   })
 }
+
+function currentEvent(input: unknown) {
+  if (!input || typeof input !== "object" || !("payload" in input)) return input
+  const envelope = input as { directory?: string; payload?: unknown }
+  if (!envelope.payload || typeof envelope.payload !== "object") return input
+  const payload = envelope.payload as { id?: string; type?: string; properties?: unknown }
+  if (!payload.type) return input
+  return {
+    id: payload.id ?? `evt_mock_${Date.now()}`,
+    created: Date.now(),
+    type: payload.type,
+    data: payload.properties ?? {},
+    location: envelope.directory && envelope.directory !== "global" ? { directory: envelope.directory } : undefined,
+  }
+}

packages/app/e2e/utils/sse-transport.ts

@@ -3,7 +3,7 @@ import type { Page } from "@playwright/test"
 export type SseConnectionRecord = {
   id: number
   url: string
-  path: "/global/event" | "/event"
+  path: "/global/event" | "/event" | "/api/event"
   headers: Record<string, string>
   openedAt: number
   endedAt?: number
@@ -93,6 +93,20 @@ export async function installSseTransport<T>(
           eventOptions.retry === undefined ? "" : `retry: ${eventOptions.retry}\n`,
           `data: ${JSON.stringify(payload)}\n\n`,
         ].join("")
+      const currentEvent = (input: unknown) => {
+        if (!input || typeof input !== "object" || !("payload" in input)) return input
+        const envelope = input as { directory?: string; payload?: unknown }
+        if (!envelope.payload || typeof envelope.payload !== "object") return input
+        const payload = envelope.payload as { id?: string; type?: string; properties?: unknown }
+        if (!payload.type) return input
+        return {
+          id: payload.id ?? `evt_mock_${Date.now()}`,
+          created: Date.now(),
+          type: payload.type,
+          data: payload.properties ?? {},
+          location: envelope.directory && envelope.directory !== "global" ? { directory: envelope.directory } : undefined,
+        }
+      }
       const acknowledge = (
         connection: Connection,
         bytes: number,
@@ -140,14 +154,14 @@ export async function installSseTransport<T>(
           output.forEach((chunk) => connection.controller.enqueue(chunk))
           return acknowledge(connection, input.bytes.length, output.length)
         }
-        const encoded = input.deliveries.map((delivery) => ({
-          delivery,
-          bytes: encoder.encode(frame(delivery.payload, delivery.options)),
-        }))
+        const encoded = input.deliveries.map((delivery) => {
+          const payload = connection.path === "/api/event" ? currentEvent(delivery.payload) : delivery.payload
+          return { delivery, payload, bytes: encoder.encode(frame(payload, delivery.options)) }
+        })
         encoded.forEach((item) => marker(item.delivery.options?.marker))
         if (input.burst) {
           const bytes = encoder.encode(
-            encoded.map((item) => frame(item.delivery.payload, item.delivery.options)).join(""),
+            encoded.map((item) => frame(item.payload, item.delivery.options)).join(""),
           )
           connection.controller.enqueue(bytes)
           return encoded.map((item) => acknowledge(connection, item.bytes.byteLength, 1, item.delivery.options?.id))
@@ -161,7 +175,10 @@ export async function installSseTransport<T>(
       const fetch = (input: RequestInfo | URL, init?: RequestInit) => {
         const request = new Request(input, init)
         const url = new URL(request.url)
-        if (url.origin !== server || (url.pathname !== "/global/event" && url.pathname !== "/event"))
+        if (
+          url.origin !== server ||
+          (url.pathname !== "/global/event" && url.pathname !== "/event" && url.pathname !== "/api/event")
+        )
           return originalFetch(request)
 
         const id = ++nextConnectionID
@@ -177,6 +194,12 @@ export async function installSseTransport<T>(
             record.controller = controller
             connections.push(record)
             if (retry !== undefined) controller.enqueue(encoder.encode(`retry: ${retry}\n\n`))
+            if (url.pathname === "/api/event")
+              controller.enqueue(
+                encoder.encode(
+                  frame({ id: `evt_mock_connected_${id}`, type: "server.connected", data: {} }),
+                ),
+              )
             request.signal.addEventListener(
               "abort",
               () => {

packages/app/src/components/prompt-input-v2.tsx

@@ -310,7 +310,7 @@ export function usePromptInputV2Controller(props: PromptInputV2ControllerProps):
   )
   const resources = createMemo(() =>
     Object.values(sync().data.mcp_resource).map((resource) => ({
-      id: `resource:${resource.client}:${resource.uri}`,
+      id: `resource:${resource.server}:${resource.uri}`,
       kind: "resource" as const,
       label: `@${resource.name}`,
       path: resource.uri,
@@ -327,7 +327,7 @@ export function usePromptInputV2Controller(props: PromptInputV2ControllerProps):
         source: {
           type: "resource" as const,
           text: { value: `@${resource.name}`, start: 0, end: resource.name.length + 1 },
-          clientName: resource.client,
+          clientName: resource.server,
           uri: resource.uri,
         },
       },

packages/app/src/components/prompt-input.tsx

@@ -591,7 +591,7 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
         type: "resource",
         name: resource.name,
         uri: resource.uri,
-        client: resource.client,
+        client: resource.server,
         display: resource.name,
         description: resource.description,
         mime: resource.mimeType,

packages/app/src/components/prompt-input/submit.ts

@@ -20,6 +20,8 @@ import { setCursorPosition } from "./editor-dom"
 import { formatServerError } from "@/utils/server-errors"
 import { ScopedKey } from "@/utils/server-scope"
 import { createPromptSubmissionState } from "./submission-state"
+import { normalizeSessionInfo } from "@/utils/session"
+import { Event } from "@opencode-ai/schema/event"
 
 type PendingPrompt = {
   abort: AbortController
@@ -39,7 +41,7 @@ export type FollowupDraft = {
 }
 
 type FollowupSendInput = {
-  client: DirectorySDK["client"]
+  api: DirectorySDK["api"]["session"]
   serverSync: ServerSync
   sync: DirectorySync
   draft: FollowupDraft
@@ -81,19 +83,21 @@ export async function sendFollowupDraft(input: FollowupSendInput) {
         return false
       }
 
-      await input.client.session.command({
+      const messageID = Identifier.ascending("message")
+      await input.api.command({
         sessionID: input.draft.sessionID,
+        id: messageID,
         command: cmd,
         arguments: tail.join(" "),
         agent: input.draft.agent,
-        model: `${input.draft.model.providerID}/${input.draft.model.modelID}`,
-        variant: input.draft.variant,
-        parts: images.map((attachment) => ({
-          id: Identifier.ascending("part"),
-          type: "file" as const,
-          mime: attachment.mime,
-          url: attachment.dataUrl,
-          filename: attachment.filename,
+        model: {
+          id: input.draft.model.modelID,
+          providerID: input.draft.model.providerID,
+          variant: input.draft.variant,
+        },
+        files: images.map((attachment) => ({
+          uri: attachment.dataUrl,
+          name: attachment.filename,
         })),
       })
       return true
@@ -152,13 +156,36 @@ export async function sendFollowupDraft(input: FollowupSendInput) {
       return false
     }
 
-    await input.client.session.promptAsync({
+    await input.api.prompt({
       sessionID: input.draft.sessionID,
+      id: messageID,
       agent: input.draft.agent,
       model: input.draft.model,
-      messageID,
-      parts: requestParts,
       variant: input.draft.variant,
+      text: requestParts.flatMap((part) => (part.type === "text" ? [part.text] : [])).join("\n"),
+      files: requestParts.flatMap((part) => {
+        if (part.type !== "file") return []
+        const text = part.source?.text
+        return [
+          {
+            uri: part.url,
+            name: part.filename,
+            mention: text ? { start: text.start, end: text.end, text: text.value } : undefined,
+          },
+        ]
+      }),
+      agents: requestParts.flatMap((part) =>
+        part.type === "agent"
+          ? [
+              {
+                name: part.name,
+                mention: part.source
+                  ? { start: part.source.start, end: part.source.end, text: part.source.value }
+                  : undefined,
+              },
+            ]
+          : [],
+      ),
     })
     return true
   } catch (err) {
@@ -210,6 +237,7 @@ export function createPromptSubmit(input: PromptSubmitInput) {
   const pendingKey = (sessionID: string) => ScopedKey.from(sdk().scope, sessionID)
 
   const errorMessage = (err: unknown) => {
+    if (err && typeof err === "object" && "message" in err && typeof err.message === "string") return err.message
     if (err && typeof err === "object" && "data" in err) {
       const data = (err as { data?: { message?: string } }).data
       if (data?.message) return data.message
@@ -235,9 +263,7 @@ export function createPromptSubmit(input: PromptSubmitInput) {
       return Promise.resolve()
     }
     return sdk()
-      .client.session.abort({
-        sessionID,
-      })
+      .api.session.interrupt({ sessionID })
       .catch(() => {})
   }
 
@@ -364,9 +390,13 @@ export function createPromptSubmit(input: PromptSubmitInput) {
 
     let session = input.info()
     if (!session && isNewSession) {
-      const created = await client.session
-        .create()
-        .then((x) => x.data ?? undefined)
+      const created = await sdk()
+        .api.session.create({
+          agent: currentAgent.name,
+          model: { id: currentModel.id, providerID: currentModel.provider.id, variant },
+          location: { directory: sessionDirectory },
+        })
+        .then(normalizeSessionInfo)
         .catch((err) => {
           showToast({
             title: language.t("prompt.toast.sessionCreateFailed.title"),
@@ -450,12 +480,14 @@ export function createPromptSubmit(input: PromptSubmitInput) {
 
     if (mode === "shell") {
       clearInput()
-      client.session
-        .shell({
+      const eventID = Event.ID.create()
+      sdk()
+        .api.session.shell({
           sessionID: session.id,
+          id: eventID,
+          command: text,
           agent,
           model,
-          command: text,
         })
         .catch((err) => {
           showToast({
@@ -473,23 +505,23 @@ export function createPromptSubmit(input: PromptSubmitInput) {
       const customCommand = sync().data.command.find((c) => c.name === commandName)
       if (customCommand) {
         clearInput()
-        client.session
-          .command({
+        const messageID = Identifier.ascending("message")
+        serverSync().session.set("session_status", session.id, { type: "busy" })
+        sdk()
+          .api.session.command({
             sessionID: session.id,
+            id: messageID,
             command: commandName,
             arguments: args.join(" "),
             agent,
-            model: `${model.providerID}/${model.modelID}`,
-            variant,
-            parts: images.map((attachment) => ({
-              id: Identifier.ascending("part"),
-              type: "file" as const,
-              mime: attachment.mime,
-              url: attachment.dataUrl,
-              filename: attachment.filename,
+            model: { id: model.modelID, providerID: model.providerID, variant },
+            files: images.map((attachment) => ({
+              uri: attachment.dataUrl,
+              name: attachment.filename,
             })),
           })
           .catch((err) => {
+            serverSync().session.set("session_status", session.id, { type: "idle" })
             showToast({
               title: language.t("prompt.toast.commandSendFailed.title"),
               description: formatServerError(err, language.t, language.t("common.requestFailed")),
@@ -573,7 +605,7 @@ export function createPromptSubmit(input: PromptSubmitInput) {
     }
 
     void sendFollowupDraft({
-      client,
+      api: sdk().api.session,
       sync: sync(),
       serverSync: serverSync(),
       draft,

packages/app/src/components/status-popover-indicator.test.ts

@@ -26,7 +26,7 @@ describe("hasNonBlockingServiceIssue", () => {
     expect(hasNonBlockingServiceIssue({ mcp: ["failed"], lsp: [] })).toBe(true)
     expect(hasNonBlockingServiceIssue({ mcp: ["needs_auth"], lsp: [] })).toBe(true)
     expect(hasNonBlockingServiceIssue({ mcp: ["needs_client_registration"], lsp: [] })).toBe(true)
-    expect(hasNonBlockingServiceIssue({ mcp: ["connected", "disabled"], lsp: [] })).toBe(false)
+    expect(hasNonBlockingServiceIssue({ mcp: ["connected", "pending", "disabled"], lsp: [] })).toBe(false)
   })
 
   test("detects LSP failures that do not block chatting", () => {

packages/app/src/components/status-popover-indicator.ts

@@ -1,11 +1,12 @@
-import type { LspStatus, McpStatus } from "@opencode-ai/sdk/v2/client"
+import type { LspStatus } from "@opencode-ai/sdk/v2/client"
+import type { McpServer } from "@opencode-ai/client/promise"
 
 export function hasNonBlockingServiceIssue(input: {
-  mcp: Array<McpStatus["status"]>
+  mcp: Array<McpServer["status"]["status"]>
   lsp: Array<LspStatus["status"]>
 }) {
   return (
-    input.mcp.some((status) => status !== "connected" && status !== "disabled") ||
+    input.mcp.some((status) => status !== "connected" && status !== "pending" && status !== "disabled") ||
     input.lsp.some((status) => status === "error")
   )
 }

packages/app/src/context/directory-sync.ts

@@ -5,6 +5,7 @@ import { produce, reconcile, type SetStoreFunction } from "solid-js/store"
 import type { createServerSdkContext } from "./server-sdk"
 import type { createServerSyncContextInner } from "./server-sync"
 import type { State } from "./global-sync/types"
+import { normalizeSessionInfo } from "@/utils/session"
 
 const cmp = (a: string, b: string) => (a < b ? -1 : a > b ? 1 : 0)
 const sessionFields = new Set([
@@ -15,6 +16,7 @@ const sessionFields = new Set([
   "permission",
   "question",
   "message",
+  "session_message",
   "part",
   "part_text_accum_delta",
 ])
@@ -114,7 +116,6 @@ export const createDirSyncContext = (
         await serverSync.session.sync(sessionID, options)
         index(sessionID)
       },
-      diff: serverSync.session.diff,
       todo: serverSync.session.todo,
       history: serverSync.session.history,
       evict(sessionID: string) {
@@ -123,9 +124,9 @@ export const createDirSyncContext = (
       fetch: async (count = 10) => {
         const [store, setStore] = current()
         setStore("limit", (value) => value + count)
-        const response = await client.session.list()
-        const sessions = (response.data ?? [])
-          .filter((session) => !!session?.id)
+        const response = await serverSDK.api.session.list({ directory, limit: store.limit, order: "desc" })
+        const sessions = response.data
+          .map(normalizeSessionInfo)
           .sort((a, b) => cmp(a.id, b.id))
           .slice(0, store.limit)
         sessions.forEach(serverSync.session.remember)
@@ -133,7 +134,7 @@ export const createDirSyncContext = (
       },
       more: createMemo(() => current()[0].session.length >= current()[0].limit),
       archive: async (sessionID: string) => {
-        await serverSDK.client.session.update({ sessionID, time: { archived: Date.now() } })
+        await serverSDK.api.session.archive({ sessionID, directory })
         current()[1](
           "session",
           produce((draft) => {

packages/app/src/context/global-sync/bootstrap.test.ts

@@ -1,14 +1,39 @@
 import { describe, expect, test } from "bun:test"
 import { createStore } from "solid-js/store"
 import { QueryClient } from "@tanstack/solid-query"
-import type { Config, OpencodeClient, Project, Session } from "@opencode-ai/sdk/v2/client"
+import type { Config, OpencodeClient, Project } from "@opencode-ai/sdk/v2/client"
+import type { AgentApi, CatalogApi, CommandApi, ProjectApi, ReferenceApi } from "@opencode-ai/client/promise"
 import type { NormalizedProviderListResponse } from "@opencode-ai/session-ui/context"
-import { bootstrapDirectory, loadPathQuery, loadProvidersQuery } from "./bootstrap"
+import {
+  bootstrapDirectory,
+  loadAgentsQuery,
+  loadCommands,
+  loadPathQuery,
+  loadProjectsQuery,
+  loadProvidersQuery,
+  loadReferencesQuery,
+} from "./bootstrap"
 import type { State, VcsCache } from "./types"
-import { createServerSession } from "../server-session"
 import { ServerScope } from "@/utils/server-scope"
+import type { ServerApi } from "@/utils/server"
 
 const provider = { all: new Map(), connected: [], default: {} } satisfies NormalizedProviderListResponse
+const api = {
+  agent: { list: async () => ({ location: {}, data: [] }) },
+  provider: { list: async () => ({ location: {}, data: [] }) },
+  model: {
+    list: async () => ({ location: {}, data: [] }),
+    default: async () => ({ location: {}, data: null }),
+  },
+  permission: { request: { list: async () => ({ location: {}, data: [] }) } },
+  project: {
+    list: async () => [],
+    current: async () => ({ id: "project", directory: "/project" }),
+  },
+  question: { request: { list: async () => ({ location: {}, data: [] }) } },
+  reference: { list: async () => ({ location: {}, data: [] }) },
+  vcs: { get: async () => ({ location: {}, data: {} }) },
+} as unknown as ServerApi
 
 function directoryState() {
   return createStore<State>({
@@ -41,6 +66,7 @@ function directoryState() {
     vcs: undefined,
     limit: 5,
     message: {},
+    session_message: {},
     part: {},
     part_text_accum_delta: {},
   })
@@ -64,7 +90,6 @@ describe("bootstrapDirectory", () => {
       sdk: {
         app: { agents: async () => ({ data: [{ name: "build", mode: "primary" }] }) },
         config: { get: async () => ({ data: {} }) },
-        session: { status: async () => ({ data: {} }) },
         vcs: { get: async () => ({ data: undefined }) },
         command: {
           list: async () => {
@@ -83,6 +108,7 @@ describe("bootstrapDirectory", () => {
         },
         provider: { list: async () => ({ data: { all: [], connected: [], default: {} } }) },
       } as unknown as OpencodeClient,
+      api,
       store,
       setStore,
       vcsCache: { setStore() {} } as unknown as VcsCache,
@@ -99,78 +125,108 @@ describe("bootstrapDirectory", () => {
     expect(mcpReads).toEqual([])
   })
 
-  test("seeds session status even while warming session info stalls", async () => {
-    const [store, setStore] = directoryState()
-    const stalled = Promise.withResolvers<never>()
-    const client = {
-      app: { agents: async () => ({ data: [{ name: "build", mode: "primary" }] }) },
-      config: { get: async () => ({ data: {} }) },
-      session: {
-        status: async () => ({ data: { ses_busy: { type: "busy" } } }),
-        get: () => stalled.promise,
-      },
-      vcs: { get: async () => ({ data: undefined }) },
-      command: { list: async () => ({ data: [] }) },
-      permission: { list: async () => ({ data: [] }) },
-      question: { list: async () => ({ data: [] }) },
-      v2: { reference: { list: async () => ({ data: { data: [] } }) } },
-      mcp: { status: async () => ({ data: {} }) },
-      provider: { list: async () => ({ data: { all: [], connected: [], default: {} } }) },
-    } as unknown as OpencodeClient
-    const session = createServerSession(client)
-    const stale: Session = {
-      id: "ses_stale",
-      slug: "ses_stale",
-      projectID: "project",
-      directory: "/project",
-      title: "stale",
-      version: "1",
-      time: { created: 1, updated: 1 },
-    }
-    session.remember(stale)
-    session.set("session_status", stale.id, { type: "busy" })
-
-    await bootstrapDirectory({
-      directory: "/project",
-      scope: ServerScope.local,
-      mcp: false,
-      global: {
-        config: {} satisfies Config,
-        path: { state: "", config: "", worktree: "/project", directory: "/project", home: "/home" },
-        project: [{ id: "project", worktree: "/project" } as Project],
-        provider,
-      },
-      sdk: client,
-      store,
-      setStore,
-      vcsCache: { setStore() {} } as unknown as VcsCache,
-      loadSessions() {},
-      translate: (key) => key,
-      queryClient: new QueryClient(),
-      session,
-    })
-
-    const deadline = Date.now() + 500
-    while (!session.data.session_working("ses_busy") && Date.now() < deadline) {
-      await new Promise((resolve) => setTimeout(resolve, 10))
-    }
-
-    expect(session.data.session_status["ses_busy"]?.type).toBe("busy")
-    expect(session.data.session_status[stale.id]).toBeUndefined()
-  })
 })
 
 describe("query keys", () => {
   test("partitions identical directories by server scope", () => {
-    const client = {} as OpencodeClient
+    const client = {} as Parameters<typeof loadPathQuery>[2]
+    const api = {} as CatalogApi
     const remote = "https://debian.example" as typeof ServerScope.local
 
     expect([...loadPathQuery(ServerScope.local, "/repo", client).queryKey]).toEqual(["local", "/repo", "path"])
     expect([...loadPathQuery(remote, "/repo", client).queryKey]).toEqual(["https://debian.example", "/repo", "path"])
-    expect([...loadProvidersQuery(remote, null, client).queryKey]).toEqual([
-      "https://debian.example",
-      null,
-      "providers",
+    expect([...loadProvidersQuery(remote, null, api).queryKey]).toEqual(["https://debian.example", null, "providers"])
+  })
+
+  test("loads the current provider and model catalog", async () => {
+    const calls: unknown[] = []
+    const api = {
+      provider: {
+        list: async (input: unknown) => {
+          calls.push(["provider", input])
+          return { location: {}, data: [{ id: "openai", name: "OpenAI", package: "@ai-sdk/openai" }] }
+        },
+      },
+      model: {
+        list: async (input: unknown) => {
+          calls.push(["model", input])
+          return { location: {}, data: [] }
+        },
+        default: async (input: unknown) => {
+          calls.push(["default", input])
+          return { location: {}, data: null }
+        },
+      },
+    } as unknown as CatalogApi
+
+    const result = await new QueryClient().fetchQuery(loadProvidersQuery(ServerScope.local, "/repo", api))
+
+    expect(calls).toEqual([
+      ["provider", { location: { directory: "/repo" } }],
+      ["model", { location: { directory: "/repo" } }],
+      ["default", { location: { directory: "/repo" } }],
     ])
+    expect(result.connected).toEqual(["openai"])
+  })
+
+  test("loads agents from the current location-scoped endpoint", async () => {
+    const calls: unknown[] = []
+    const api = {
+      list: async (input: unknown) => {
+        calls.push(input)
+        return { location: {}, data: [] }
+      },
+    } as unknown as AgentApi
+
+    const result = await new QueryClient().fetchQuery(loadAgentsQuery(ServerScope.local, "/repo", api))
+
+    expect(calls).toEqual([{ location: { directory: "/repo" } }])
+    expect(result).toEqual([])
+  })
+
+  test("loads commands from the current location-scoped endpoint", async () => {
+    const calls: unknown[] = []
+    const api = {
+      list: async (input: unknown) => {
+        calls.push(input)
+        return {
+          location: {},
+          data: [{ name: "review", template: "Review files", source: "command" as const }],
+        }
+      },
+    } as unknown as CommandApi
+
+    const result = await loadCommands("/repo", api)
+
+    expect(calls).toEqual([{ location: { directory: "/repo" } }])
+    expect(result).toEqual([{ name: "review", template: "Review files", source: "command" }])
+  })
+
+  test("loads projects from the current endpoint", async () => {
+    const api = {
+      list: async () => [
+        { id: "b", worktree: "/b", time: { created: 1, updated: 1 }, sandboxes: [] },
+        { id: "a", worktree: "/a", time: { created: 1, updated: 1 }, sandboxes: [] },
+      ],
+    } as unknown as ProjectApi
+
+    const result = await new QueryClient().fetchQuery(loadProjectsQuery(ServerScope.local, api))
+
+    expect(result.map((project) => project.id)).toEqual(["a", "b"])
+  })
+
+  test("loads references from the current location-scoped endpoint", async () => {
+    const calls: unknown[] = []
+    const api = {
+      list: async (input: unknown) => {
+        calls.push(input)
+        return { location: {}, data: [{ name: "AGENTS.md", path: "/repo/AGENTS.md", source: "instructions" }] }
+      },
+    } as unknown as ReferenceApi
+
+    const result = await new QueryClient().fetchQuery(loadReferencesQuery(ServerScope.local, "/repo", api))
+
+    expect(calls).toEqual([{ location: { directory: "/repo" } }])
+    expect(result).toHaveLength(1)
   })
 })

packages/app/src/context/global-sync/bootstrap.ts

@@ -9,6 +9,26 @@ import type {
   ReferenceInfo,
   Session,
 } from "@opencode-ai/sdk/v2/client"
+import type {
+  AgentListInput,
+  AgentListOutput,
+  CatalogApi,
+  CommandInfo,
+  CommandListInput,
+  CommandListOutput,
+  McpApi,
+  PathGetInput,
+  PathGetOutput,
+  PermissionApi,
+  ProjectCurrentInput,
+  ProjectCurrentOutput,
+  ProjectListOutput,
+  QuestionApi,
+  ReferenceListInput,
+  ReferenceListOutput,
+  SessionApi,
+  VcsApi,
+} from "@opencode-ai/client/promise"
 import { showToast } from "@/utils/toast"
 import { getFilename } from "@opencode-ai/core/util/path"
 import { retry } from "@opencode-ai/core/util/retry"
@@ -16,12 +36,20 @@ import { batch } from "solid-js"
 import { produce, reconcile, type SetStoreFunction, type Store } from "solid-js/store"
 import type { State, VcsCache } from "./types"
 import type { ServerSession } from "../server-session"
-import { cmp, normalizeAgentList, normalizeProviderList } from "./utils"
+import {
+  cmp,
+  normalizeAgentList,
+  normalizePermissionRequest,
+  normalizeProjectInfo,
+  normalizeProviderList,
+} from "./utils"
 import { formatServerError } from "@/utils/server-errors"
 import { QueryClient, queryOptions } from "@tanstack/solid-query"
 import { loadMcpQuery, loadMcpResourcesQuery } from "../server-sync"
 import { NormalizedProviderListResponse } from "@opencode-ai/session-ui/context"
 import { ScopedKey, type ServerScope } from "@/utils/server-scope"
+import { normalizeSessionInfo } from "@/utils/session"
+import type { ServerProtocol } from "@/utils/server-protocol"
 
 type GlobalStore = {
   ready: boolean
@@ -88,15 +116,25 @@ export const loadGlobalConfigQuery = (scope: ServerScope, sdk: OpencodeClient) =
     queryFn: () => retry(() => sdk.global.config.get().then((x) => x.data!)),
   })
 
-export const loadProjectsQuery = (scope: ServerScope, sdk: OpencodeClient) =>
+type ProjectApi = {
+  readonly list: () => Promise<ProjectListOutput>
+  readonly current: (input?: ProjectCurrentInput) => Promise<ProjectCurrentOutput>
+}
+
+type PathApi = {
+  readonly get: (input?: PathGetInput) => Promise<PathGetOutput>
+}
+
+export const loadProjectsQuery = (scope: ServerScope, api: ProjectApi) =>
   queryOptions({
     queryKey: [scope, "project"],
     queryFn: () =>
       retry(() =>
-        sdk.project.list().then((x) => {
-          return (x.data ?? [])
+        api.list().then((projects) => {
+          return projects
             .filter((p) => !!p?.id)
             .filter((p) => !!p.worktree && !p.worktree.includes("opencode-test"))
+            .map(normalizeProjectInfo)
             .slice()
             .sort((a, b) => cmp(a.id, b.id))
         }),
@@ -105,6 +143,8 @@ export const loadProjectsQuery = (scope: ServerScope, sdk: OpencodeClient) =>
 
 export async function bootstrapGlobal(input: {
   serverSDK: OpencodeClient
+  serverAPI: CatalogApi & { readonly path: PathApi; readonly project: ProjectApi }
+  protocol?: Promise<ServerProtocol>
   scope: ServerScope
   requestFailedTitle: string
   translate: (key: string, vars?: Record<string, string | number>) => string
@@ -114,11 +154,14 @@ export async function bootstrapGlobal(input: {
 }) {
   const slow = [
     () => input.queryClient.fetchQuery(loadGlobalConfigQuery(input.scope, input.serverSDK)),
-    () => input.queryClient.fetchQuery(loadProvidersQuery(input.scope, null, input.serverSDK)),
-    () => input.queryClient.fetchQuery(loadPathQuery(input.scope, null, input.serverSDK)),
+    () =>
+      input.queryClient.fetchQuery(
+        loadProvidersQuery(input.scope, null, input.serverAPI, input.serverSDK, input.protocol),
+      ),
+    () => input.queryClient.fetchQuery(loadPathQuery(input.scope, null, input.serverAPI.path)),
     () =>
       input.queryClient
-        .fetchQuery(loadProjectsQuery(input.scope, input.serverSDK))
+        .fetchQuery(loadProjectsQuery(input.scope, input.serverAPI.project))
         .then((data) => input.setGlobalStore("project", data)),
   ]
   await runAll(slow)
@@ -162,44 +205,117 @@ function warmSessions(input: {
   ids: string[]
   store: Store<State>
   setStore: SetStoreFunction<State>
-  sdk: OpencodeClient
+  api: SessionApi
 }) {
   const known = new Set(input.store.session.map((item) => item.id))
   const ids = [...new Set(input.ids)].filter((id) => !!id && !known.has(id))
   if (ids.length === 0) return Promise.resolve()
   return Promise.all(
     ids.map((sessionID) =>
-      retry(() => input.sdk.session.get({ sessionID })).then((x) => {
-        const session = x.data
-        if (!session?.id) return
-        mergeSession(input.setStore, session)
-      }),
+      retry(() => input.api.get({ sessionID })).then((session) =>
+        mergeSession(input.setStore, normalizeSessionInfo(session)),
+      ),
     ),
   ).then(() => undefined)
 }
 
-export const loadProvidersQuery = (scope: ServerScope, directory: string | null, sdk: OpencodeClient) =>
+export const loadProvidersQuery = (
+  scope: ServerScope,
+  directory: string | null,
+  sdk: CatalogApi,
+  legacy?: OpencodeClient,
+  protocol?: Promise<ServerProtocol>,
+) =>
   queryOptions({
     queryKey: [scope, directory, "providers"],
-    queryFn: () => retry(() => sdk.provider.list().then((x) => normalizeProviderList(x.data!))),
+    queryFn: () =>
+      retry(async () => {
+        if ((await protocol) === "v1" && legacy) {
+          const result = await legacy.provider.list()
+          return normalizeProviderList(result.data!)
+        }
+        const location = directory ? { location: { directory } } : undefined
+        const [providers, models, defaultModel] = await Promise.all([
+          sdk.provider.list(location),
+          sdk.model.list(location),
+          sdk.model.default(location),
+        ])
+        return normalizeProviderList(providers.data, models.data, defaultModel.data)
+      }),
   })
 
-export const loadAgentsQuery = (scope: ServerScope, directory: string | null, sdk: OpencodeClient) =>
+type AgentListApi = {
+  readonly list: (input?: AgentListInput) => Promise<AgentListOutput>
+}
+
+type CommandListApi = {
+  readonly list: (input?: CommandListInput) => Promise<CommandListOutput>
+}
+
+type ReferenceListApi = {
+  readonly list: (input?: ReferenceListInput) => Promise<ReferenceListOutput>
+}
+
+export const loadAgentsQuery = (
+  scope: ServerScope,
+  directory: string,
+  sdk: AgentListApi,
+  legacy?: OpencodeClient,
+  protocol?: Promise<ServerProtocol>,
+) =>
   queryOptions({
     queryKey: [scope, directory, "agents"],
-    queryFn: () => retry(() => sdk.app.agents().then((x) => normalizeAgentList(x.data))),
+    queryFn: () =>
+      retry(async () => {
+        if ((await protocol) === "v1" && legacy) return normalizeAgentList((await legacy.app.agents()).data ?? [])
+        return sdk.list({ location: { directory } }).then((result) => normalizeAgentList(result.data))
+      }),
   })
 
-export const loadPathQuery = (scope: ServerScope, directory: string | null, sdk: OpencodeClient) =>
+export const loadCommands = (
+  directory: string,
+  api: CommandListApi,
+  legacy?: OpencodeClient,
+  protocol?: Promise<ServerProtocol>,
+): Promise<CommandInfo[]> =>
+  retry(async () => {
+    if ((await protocol) === "v1" && legacy) {
+      return ((await legacy.command.list()).data ?? []).map((command) => {
+        const [providerID, id] = command.model?.split("/") ?? []
+        return {
+          name: command.name,
+          template: command.template,
+          description: command.description,
+          agent: command.agent,
+          model: providerID && id ? { providerID, id } : undefined,
+          subtask: command.subtask,
+          source: command.source === "skill" ? undefined : command.source,
+        }
+      })
+    }
+    return api.list({ location: { directory } }).then((result) => result.data)
+  })
+
+export const loadPathQuery = (scope: ServerScope, directory: string | null, api: PathApi) =>
   queryOptions<Path>({
     queryKey: [scope, directory, "path"],
-    queryFn: () => retry(() => sdk.path.get().then((x) => x.data!)),
+    queryFn: () => retry(() => api.get(directory ? { location: { directory } } : undefined)),
   })
 
-export const loadReferencesQuery = (scope: ServerScope, directory: string, sdk: OpencodeClient) =>
+export const loadReferencesQuery = (
+  scope: ServerScope,
+  directory: string,
+  api: ReferenceListApi,
+  legacy?: OpencodeClient,
+  protocol?: Promise<ServerProtocol>,
+) =>
   queryOptions<ReferenceInfo[]>({
     queryKey: [scope, directory, "references"] as const,
-    queryFn: () => retry(() => sdk.v2.reference.list().then((x) => x.data?.data ?? [])).catch(() => []),
+    queryFn: () =>
+      retry(async () => {
+        if ((await protocol) === "v1" && legacy) return (await legacy.v2.reference.list()).data?.data ?? []
+        return api.list({ location: { directory } }).then((result) => result.data)
+      }).catch(() => []),
     placeholderData: [],
   })
 
@@ -208,6 +324,18 @@ export async function bootstrapDirectory(input: {
   scope: ServerScope
   mcp: boolean
   sdk: OpencodeClient
+  api: CatalogApi & {
+    readonly agent: AgentListApi
+    readonly command: CommandListApi
+    readonly mcp: McpApi
+    readonly path: PathApi
+    readonly permission: PermissionApi
+    readonly project: ProjectApi
+    readonly question: QuestionApi
+    readonly reference: ReferenceListApi
+    readonly session: SessionApi
+    readonly vcs: VcsApi
+  }
   store: Store<State>
   setStore: SetStoreFunction<State>
   vcsCache: VcsCache
@@ -221,6 +349,7 @@ export async function bootstrapDirectory(input: {
   }
   queryClient: QueryClient
   session?: ServerSession
+  protocol?: Promise<ServerProtocol>
 }) {
   const loading = input.store.status !== "complete"
   const seededProject = projectID(input.directory, input.global.project)
@@ -240,66 +369,55 @@ export async function bootstrapDirectory(input: {
       () => Promise.resolve(input.loadSessions(input.directory)),
       () =>
         input.queryClient
-          .ensureQueryData(loadAgentsQuery(input.scope, input.directory, input.sdk))
+          .ensureQueryData(loadAgentsQuery(input.scope, input.directory, input.api.agent, input.sdk, input.protocol))
           .then((data) => input.setStore("agent", data)),
       () =>
         retry(() => input.sdk.config.get().then((x) => input.setStore("config", reconcile(x.data!, { merge: false })))),
-      () =>
-        retry(() =>
-          input.sdk.session.status().then(async (x) => {
-            if (!input.session) {
-              input.setStore("session_status", x.data!)
-              return
-            }
-            const statuses = x.data ?? {}
-            input.session.set(
-              "session_status",
-              produce((draft) => {
-                for (const sessionID of Object.keys(draft)) {
-                  if (statuses[sessionID]) continue
-                  if (input.session?.get(sessionID)?.directory === input.directory) delete draft[sessionID]
-                }
-              }),
-            )
-            for (const [sessionID, status] of Object.entries(statuses)) {
-              input.session.set("session_status", sessionID, reconcile(status))
-            }
-            // Warm session info only after seeding statuses so a stalled session
-            // fetch cannot park busy indicators behind it, mirroring how live
-            // session.status events apply first and resolve info in the background.
-            await Promise.all(
-              Object.keys(statuses).map((sessionID) => input.session!.resolve(sessionID).catch(() => undefined)),
-            )
-          }),
-        ),
       !seededProject &&
-        (() => retry(() => input.sdk.project.current()).then((x) => input.setStore("project", x.data!.id))),
+        (() =>
+          retry(() => input.api.project.current({ location: { directory: input.directory } })).then((project) =>
+            input.setStore("project", project.id),
+          )),
       !seededPath &&
         (() =>
-          input.queryClient.ensureQueryData(loadPathQuery(input.scope, input.directory, input.sdk)).then((data) => {
-            const next = projectID(data.directory ?? input.directory, input.global.project)
-            if (next) input.setStore("project", next)
-          })),
+          input.queryClient
+            .ensureQueryData(loadPathQuery(input.scope, input.directory, input.api.path))
+            .then((data) => {
+              const next = projectID(data.directory ?? input.directory, input.global.project)
+              if (next) input.setStore("project", next)
+            })),
       () =>
         retry(() =>
-          input.sdk.vcs.get().then((x) => {
-            const next = x.data ?? input.store.vcs
+          input.api.vcs.get({ location: { directory: input.directory } }).then((result) => {
+            const next = { branch: result.data.branch, default_branch: result.data.defaultBranch }
             input.setStore("vcs", next)
             if (next) input.vcsCache.setStore("value", next)
           }),
         ),
-      input.mcp && (() => retry(() => input.sdk.command.list().then((x) => input.setStore("command", x.data ?? [])))),
-      () => input.queryClient.fetchQuery(loadReferencesQuery(input.scope, input.directory, input.sdk)),
+      input.mcp &&
+        (() =>
+          loadCommands(input.directory, input.api.command, input.sdk, input.protocol).then((commands) =>
+            input.setStore("command", commands),
+          )),
+      () =>
+        input.queryClient.fetchQuery(
+          loadReferencesQuery(input.scope, input.directory, input.api.reference, input.sdk, input.protocol),
+        ),
       () =>
         retry(() =>
-          input.sdk.permission.list().then((x) => {
-            const ids = (x.data ?? []).map((perm) => perm?.sessionID).filter((id): id is string => !!id)
+          (async () => {
+            if ((await input.protocol) === "v1") return (await input.sdk.permission.list()).data ?? []
+            return input.api.permission.request
+              .list({ location: { directory: input.directory } })
+              .then((result) => result.data.map(normalizePermissionRequest))
+          })().then((permissions) => {
+            const ids = permissions.map((permission) => permission.sessionID)
             const grouped = groupBySession(
-              (x.data ?? []).filter((perm): perm is PermissionRequest => !!perm?.id && !!perm.sessionID),
+              permissions.filter((permission) => !!permission.id && !!permission.sessionID),
             )
             const warm = input.session
               ? Promise.all(ids.map((sessionID) => input.session!.resolve(sessionID))).then(() => undefined)
-              : warmSessions({ ids, store: input.store, setStore: input.setStore, sdk: input.sdk })
+              : warmSessions({ ids, store: input.store, setStore: input.setStore, api: input.api.session })
             return warm.then(() =>
               batch(() => {
                 const current = input.session?.data.permission ?? input.store.permission
@@ -323,12 +441,19 @@ export async function bootstrapDirectory(input: {
         ),
       () =>
         retry(() =>
-          input.sdk.question.list().then((x) => {
-            const ids = (x.data ?? []).map((question) => question?.sessionID).filter((id): id is string => !!id)
-            const grouped = groupBySession((x.data ?? []).filter((q): q is QuestionRequest => !!q?.id && !!q.sessionID))
+          (async () => {
+            if ((await input.protocol) === "v1") return (await input.sdk.question.list()).data ?? []
+            return input.api.question.request
+              .list({ location: { directory: input.directory } })
+              .then((result) => result.data)
+          })().then((questions) => {
+            const ids = questions.map((question) => question.sessionID)
+            const grouped = groupBySession(
+              questions.filter((question) => !!question.id && !!question.sessionID) as QuestionRequest[],
+            )
             const warm = input.session
               ? Promise.all(ids.map((sessionID) => input.session!.resolve(sessionID))).then(() => undefined)
-              : warmSessions({ ids, store: input.store, setStore: input.setStore, sdk: input.sdk })
+              : warmSessions({ ids, store: input.store, setStore: input.setStore, api: input.api.session })
             return warm.then(() =>
               batch(() => {
                 const current = input.session?.data.question ?? input.store.question
@@ -351,17 +476,20 @@ export async function bootstrapDirectory(input: {
           }),
         ),
       () => Promise.resolve(input.loadSessions(input.directory)),
-      input.mcp && (() => input.queryClient.fetchQuery(loadMcpQuery(input.scope, input.directory, input.sdk))),
-      input.mcp && (() => input.queryClient.fetchQuery(loadMcpResourcesQuery(input.scope, input.directory, input.sdk))),
+      input.mcp && (() => input.queryClient.fetchQuery(loadMcpQuery(input.scope, input.directory, input.api.mcp))),
+      input.mcp &&
+        (() => input.queryClient.fetchQuery(loadMcpResourcesQuery(input.scope, input.directory, input.api.mcp))),
       () =>
-        input.queryClient.fetchQuery(loadProvidersQuery(input.scope, input.directory, input.sdk)).catch((err) => {
-          const project = getFilename(input.directory)
-          showToast({
-            variant: "error",
-            title: input.translate("toast.project.reloadFailed.title", { project }),
-            description: formatServerError(err, input.translate),
-          })
-        }),
+        input.queryClient
+          .fetchQuery(loadProvidersQuery(input.scope, input.directory, input.api, input.sdk, input.protocol))
+          .catch((err) => {
+            const project = getFilename(input.directory)
+            showToast({
+              variant: "error",
+              title: input.translate("toast.project.reloadFailed.title", { project }),
+              description: formatServerError(err, input.translate),
+            })
+          }),
     ].filter(Boolean) as (() => Promise<any>)[]
 
     await waitForPaint()

packages/app/src/context/global-sync/child-store.ts

@@ -255,6 +255,7 @@ export function createChildStoreManager(input: {
             vcs: vcsStore.value,
             limit: 5,
             message: {},
+            session_message: {},
             part: {},
             part_text_accum_delta: {},
           })

packages/app/src/context/global-sync/event-reducer.test.ts

@@ -80,6 +80,7 @@ const baseState = (input: Partial<State> = {}) =>
     vcs: undefined,
     limit: 10,
     message: {},
+    session_message: {},
     part: {},
     part_text_accum_delta: {},
     ...input,
@@ -261,8 +262,8 @@ describe("applyDirectoryEvent", () => {
 
   test("cleans session caches when deleted and decrements only root totals", () => {
     const cases = [
-      { info: rootSession({ id: "ses_1" }), expectedTotal: 1 },
-      { info: rootSession({ id: "ses_2", parentID: "ses_1" }), expectedTotal: 2 },
+      { info: rootSession({ id: "ses_1" }), expectedTotal: 1, current: false },
+      { info: rootSession({ id: "ses_2", parentID: "ses_1" }), expectedTotal: 2, current: true },
     ]
 
     for (const item of cases) {
@@ -286,7 +287,10 @@ describe("applyDirectoryEvent", () => {
       )
 
       applyDirectoryEvent({
-        event: { type: "session.deleted", properties: { info: item.info } },
+        event: {
+          type: "session.deleted",
+          properties: item.current ? { sessionID: item.info.id } : { info: item.info },
+        },
         store,
         setStore,
         push() {},

packages/app/src/context/global-sync/event-reducer.ts

@@ -8,9 +8,9 @@ import type {
   QuestionRequest,
   Session,
   SessionStatus,
-  SnapshotFileDiff,
   Todo,
 } from "@opencode-ai/sdk/v2/client"
+import type { FileDiffInfo } from "@opencode-ai/client/promise"
 import type { State, VcsCache } from "./types"
 import { trimSessions } from "./session-trim"
 import { dropSessionCaches } from "./session-cache"
@@ -171,8 +171,11 @@ export function applyDirectoryEvent(input: {
       break
     }
     case "session.deleted": {
-      const info = (event.properties as { info: Session }).info
-      const result = Binary.search(input.store.session, info.id, (s) => s.id)
+      const properties = event.properties as { sessionID?: string; info?: Session }
+      const sessionID = properties.info?.id ?? properties.sessionID
+      if (!sessionID) break
+      const result = Binary.search(input.store.session, sessionID, (s) => s.id)
+      const info = properties.info ?? (result.found ? input.store.session[result.index] : undefined)
       if (result.found) {
         input.setStore(
           "session",
@@ -181,14 +184,77 @@ export function applyDirectoryEvent(input: {
           }),
         )
       }
-      cleanupSessionCaches(input.setStore, info.id, input.setSessionTodo)
-      if (info.parentID) break
+      cleanupSessionCaches(input.setStore, sessionID, input.setSessionTodo)
+      if (info?.parentID) break
       input.setStore("sessionTotal", (value) => Math.max(0, value - 1))
       break
     }
+    case "session.renamed": {
+      const properties = event.properties as { sessionID: string; title: string }
+      const result = Binary.search(input.store.session, properties.sessionID, (session) => session.id)
+      if (!result.found) break
+      input.setStore("session", result.index, (session) => ({
+        ...session,
+        title: properties.title,
+        time: { ...session.time, updated: Date.now() },
+      }))
+      break
+    }
+    case "session.usage.updated": {
+      const properties = event.properties as Pick<Session, "cost" | "tokens"> & { sessionID: string }
+      const result = Binary.search(input.store.session, properties.sessionID, (session) => session.id)
+      if (!result.found) break
+      input.setStore("session", result.index, (session) => ({
+        ...session,
+        cost: properties.cost,
+        tokens: properties.tokens,
+      }))
+      break
+    }
+    case "session.archived": {
+      const properties = event.properties as { sessionID: string }
+      const result = Binary.search(input.store.session, properties.sessionID, (session) => session.id)
+      if (!result.found) break
+      const info = input.store.session[result.index]
+      input.setStore(
+        "session",
+        produce((draft) => void draft.splice(result.index, 1)),
+      )
+      cleanupSessionCaches(input.setStore, properties.sessionID)
+      if (!info?.parentID) input.setStore("sessionTotal", (value) => Math.max(0, value - 1))
+      break
+    }
+    case "session.moved": {
+      const properties = event.properties as {
+        sessionID: string
+        location: { directory: string; workspaceID?: string }
+        projectID?: string
+        subpath?: string
+      }
+      const result = Binary.search(input.store.session, properties.sessionID, (session) => session.id)
+      if (!result.found) break
+      if (properties.location.directory === input.directory) {
+        input.setStore("session", result.index, (session) => ({
+          ...session,
+          projectID: properties.projectID ?? session.projectID,
+          workspaceID: properties.location.workspaceID,
+          directory: properties.location.directory,
+          path: properties.subpath,
+          time: { ...session.time, updated: Date.now() },
+        }))
+        break
+      }
+      const info = input.store.session[result.index]
+      input.setStore(
+        "session",
+        produce((draft) => void draft.splice(result.index, 1)),
+      )
+      if (!info?.parentID) input.setStore("sessionTotal", (value) => Math.max(0, value - 1))
+      break
+    }
     case "session.diff": {
-      const props = event.properties as { sessionID: string; diff: SnapshotFileDiff[] }
-      input.setStore("session_diff", props.sessionID, reconcile(list(props.diff), { key: "file" }))
+      const props = event.properties as { sessionID: string; diff: FileDiffInfo[] }
+      input.setStore("session_diff", props.sessionID, reconcile(list(props.diff) as FileDiffInfo[], { key: "file" }))
       break
     }
     case "todo.updated": {

packages/app/src/context/global-sync/mcp.test.ts

@@ -31,4 +31,24 @@ describe("toggleMcp", () => {
     await toggleMcp(input("disabled"))
     expect(calls).toEqual(["connect", "refresh"])
   })
+
+  test("does not toggle a server while its connection is pending", async () => {
+    const calls: string[] = []
+    await toggleMcp({
+      status: "pending",
+      connect: async () => {
+        calls.push("connect")
+      },
+      disconnect: async () => {
+        calls.push("disconnect")
+      },
+      authenticate: async () => {
+        calls.push("authenticate")
+      },
+      refresh: async () => {
+        calls.push("refresh")
+      },
+    })
+    expect(calls).toEqual([])
+  })
 })

packages/app/src/context/global-sync/mcp.ts

@@ -1,12 +1,13 @@
-import type { McpStatus } from "@opencode-ai/sdk/v2/client"
+import type { McpServer } from "@opencode-ai/client/promise"
 
 export async function toggleMcp(input: {
-  status: McpStatus["status"]
+  status: McpServer["status"]["status"]
   connect: () => Promise<void>
   disconnect: () => Promise<void>
   authenticate: () => Promise<void>
   refresh: () => Promise<void>
 }) {
+  if (input.status === "pending") return
   await {
     connected: input.disconnect,
     needs_auth: input.authenticate,

packages/app/src/context/global-sync/session-cache.test.ts

@@ -1,13 +1,6 @@
 import { describe, expect, test } from "bun:test"
-import type {
-  Message,
-  Part,
-  PermissionRequest,
-  QuestionRequest,
-  SessionStatus,
-  SnapshotFileDiff,
-  Todo,
-} from "@opencode-ai/sdk/v2/client"
+import type { Message, Part, PermissionRequest, QuestionRequest, SessionStatus, Todo } from "@opencode-ai/sdk/v2/client"
+import type { FileDiffInfo } from "@opencode-ai/client/promise"
 import { dropSessionCaches, pickSessionCacheEvictions } from "./session-cache"
 
 const msg = (id: string, sessionID: string) =>
@@ -33,9 +26,10 @@ describe("app session cache", () => {
   test("dropSessionCaches clears orphaned parts without message rows", () => {
     const store: {
       session_status: Record<string, SessionStatus | undefined>
-      session_diff: Record<string, SnapshotFileDiff[] | undefined>
+      session_diff: Record<string, FileDiffInfo[] | undefined>
       todo: Record<string, Todo[] | undefined>
       message: Record<string, Message[] | undefined>
+      session_message: Record<string, never[] | undefined>
       part: Record<string, Part[] | undefined>
       permission: Record<string, PermissionRequest[] | undefined>
       question: Record<string, QuestionRequest[] | undefined>
@@ -45,6 +39,7 @@ describe("app session cache", () => {
       session_diff: { ses_1: [] },
       todo: { ses_1: [] as Todo[] },
       message: {},
+      session_message: {},
       part: { msg_1: [part("prt_1", "ses_1", "msg_1")] },
       permission: { ses_1: [] as PermissionRequest[] },
       question: { ses_1: [] as QuestionRequest[] },
@@ -67,9 +62,10 @@ describe("app session cache", () => {
     const m = msg("msg_1", "ses_1")
     const store: {
       session_status: Record<string, SessionStatus | undefined>
-      session_diff: Record<string, SnapshotFileDiff[] | undefined>
+      session_diff: Record<string, FileDiffInfo[] | undefined>
       todo: Record<string, Todo[] | undefined>
       message: Record<string, Message[] | undefined>
+      session_message: Record<string, never[] | undefined>
       part: Record<string, Part[] | undefined>
       permission: Record<string, PermissionRequest[] | undefined>
       question: Record<string, QuestionRequest[] | undefined>
@@ -79,6 +75,7 @@ describe("app session cache", () => {
       session_diff: {},
       todo: {},
       message: { ses_1: [m] },
+      session_message: {},
       part: { [m.id]: [part("prt_1", "ses_1", m.id)] },
       permission: {},
       question: {},

packages/app/src/context/global-sync/session-cache.ts

@@ -1,20 +1,15 @@
-import type {
-  Message,
-  Part,
-  PermissionRequest,
-  QuestionRequest,
-  SessionStatus,
-  SnapshotFileDiff,
-  Todo,
-} from "@opencode-ai/sdk/v2/client"
+import type { Message, Part, PermissionRequest, QuestionRequest, SessionStatus, Todo } from "@opencode-ai/sdk/v2/client"
+import type { FileDiffInfo } from "@opencode-ai/client/promise"
+import type { SessionMessageInfo } from "@opencode-ai/client/promise"
 
 export const SESSION_CACHE_LIMIT = 40
 
 type SessionCache = {
   session_status: Record<string, SessionStatus | undefined>
-  session_diff: Record<string, SnapshotFileDiff[] | undefined>
+  session_diff: Record<string, FileDiffInfo[] | undefined>
   todo: Record<string, Todo[] | undefined>
   message: Record<string, Message[] | undefined>
+  session_message: Record<string, SessionMessageInfo[] | undefined>
   part: Record<string, Part[] | undefined>
   permission: Record<string, PermissionRequest[] | undefined>
   question: Record<string, QuestionRequest[] | undefined>
@@ -37,6 +32,7 @@ export function dropSessionCaches(store: SessionCache, sessionIDs: Iterable<stri
   for (const sessionID of stale) {
     delete store.message[sessionID]
     delete store.todo[sessionID]
+    delete store.session_message[sessionID]
     delete store.session_diff[sessionID]
     delete store.session_status[sessionID]
     delete store.permission[sessionID]

packages/app/src/context/global-sync/session-load.ts

@@ -1,20 +1,28 @@
-import type { RootLoadArgs } from "./types"
+import type { SessionApi } from "@opencode-ai/client/promise"
+import { normalizeSessionInfo } from "@/utils/session"
+import type { OpencodeClient } from "@opencode-ai/sdk/v2/client"
 
-export async function loadRootSessionsWithFallback(input: RootLoadArgs) {
+export async function loadRootSessions(input: { api: Pick<SessionApi, "list">; directory: string; limit: number }) {
+  const result = await input.api.list({
+    directory: input.directory,
+    parentID: null,
+    limit: input.limit,
+    order: "desc",
+  })
+  return {
+    data: result.data.map(normalizeSessionInfo),
+    limit: input.limit,
+    limited: true,
+  } as const
+}
+
+export async function loadRootSessionsV1(input: { client: OpencodeClient; directory: string; limit: number }) {
   try {
-    const result = await input.list({ directory: input.directory, roots: true, limit: input.limit })
-    return {
-      data: result.data,
-      limit: input.limit,
-      limited: true,
-    } as const
+    const result = await input.client.session.list({ directory: input.directory, roots: true, limit: input.limit })
+    return { data: result.data, limit: input.limit, limited: true } as const
   } catch {
-    const result = await input.list({ directory: input.directory, roots: true })
-    return {
-      data: result.data,
-      limit: input.limit,
-      limited: false,
-    } as const
+    const result = await input.client.session.list({ directory: input.directory, roots: true })
+    return { data: result.data, limit: input.limit, limited: false } as const
   }
 }
 

packages/app/src/context/global-sync/types.ts

@@ -1,10 +1,7 @@
 import type {
   Agent,
-  Command,
   Config,
   LspStatus,
-  McpResource,
-  McpStatus,
   Message,
   Part,
   Path,
@@ -13,11 +10,12 @@ import type {
   ReferenceInfo,
   Session,
   SessionStatus,
-  SnapshotFileDiff,
   Todo,
   VcsInfo,
 } from "@opencode-ai/sdk/v2/client"
+import type { FileDiffInfo } from "@opencode-ai/client/promise"
 import { NormalizedProviderListResponse } from "@opencode-ai/session-ui/context"
+import type { CommandInfo, McpResource, McpServer, SessionMessageInfo } from "@opencode-ai/client/promise"
 import type { Accessor } from "solid-js"
 import type { SetStoreFunction, Store } from "solid-js/store"
 
@@ -35,7 +33,7 @@ export type ProjectMeta = {
 export type State = {
   status: "loading" | "partial" | "complete"
   agent: Agent[]
-  command: Command[]
+  command: CommandInfo[]
   reference: ReferenceInfo[]
   project: string
   projectMeta: ProjectMeta | undefined
@@ -51,7 +49,7 @@ export type State = {
   }
   session_working(id: string): boolean
   session_diff: {
-    [sessionID: string]: SnapshotFileDiff[]
+    [sessionID: string]: FileDiffInfo[]
   }
   todo: {
     [sessionID: string]: Todo[]
@@ -64,7 +62,7 @@ export type State = {
   }
   mcp_ready: boolean
   mcp: {
-    [name: string]: McpStatus
+    [name: string]: McpServer["status"]
   }
   mcp_resource: {
     [key: string]: McpResource
@@ -76,6 +74,9 @@ export type State = {
   message: {
     [sessionID: string]: Message[]
   }
+  session_message: {
+    [sessionID: string]: SessionMessageInfo[]
+  }
   part: {
     [messageID: string]: Part[]
   }
@@ -128,18 +129,6 @@ export type DisposeCheck = {
   loadingSessions: boolean
 }
 
-export type RootLoadArgs = {
-  directory: string
-  limit: number
-  list: (query: { directory: string; roots: true; limit?: number }) => Promise<{ data?: Session[] }>
-}
-
-export type RootLoadResult = {
-  data?: Session[]
-  limit: number
-  limited: boolean
-}
-
 export const MAX_DIR_STORES = 30
 export const DIR_IDLE_TTL_MS = 20 * 60 * 1000
 export const SESSION_RECENT_WINDOW = 4 * 60 * 60 * 1000

packages/app/src/context/global-sync/utils.test.ts

@@ -1,36 +1,112 @@
 import { describe, expect, test } from "bun:test"
-import type { Agent } from "@opencode-ai/sdk/v2/client"
-import { directoryKey, normalizeAgentList } from "./utils"
-
-const agent = (name = "build") =>
-  ({
-    name,
-    mode: "primary",
-    permission: {},
-    options: {},
-  }) as Agent
+import type { AgentListOutput, ModelDefaultOutput, ModelListOutput, ProviderListOutput } from "@opencode-ai/client/promise"
+import { directoryKey, normalizeAgentList, normalizePermissionRequest, normalizeProviderList } from "./utils"
 
 describe("normalizeAgentList", () => {
-  test("keeps array payloads", () => {
-    expect(normalizeAgentList([agent("build"), agent("docs")])).toEqual([agent("build"), agent("docs")])
-  })
+  test("adapts current agents to the app agent shape", () => {
+    const result = normalizeAgentList([
+      {
+        id: "build",
+        name: "Build",
+        mode: "primary",
+        hidden: false,
+        color: "primary",
+        model: { id: "gpt-5", providerID: "openai", variant: "high" },
+        request: { settings: { temperature: 0.2, topP: 0.9 }, headers: {}, body: {} },
+        system: "Build software",
+        permissions: [{ action: "read", resource: "*", effect: "allow" }],
+      },
+    ] as AgentListOutput["data"])
 
-  test("wraps a single agent payload", () => {
-    expect(normalizeAgentList(agent("docs"))).toEqual([agent("docs")])
+    expect(result).toEqual([
+      {
+        name: "build",
+        description: undefined,
+        mode: "primary",
+        hidden: false,
+        temperature: 0.2,
+        topP: 0.9,
+        color: "primary",
+        permission: [{ permission: "read", pattern: "*", action: "allow" }],
+        model: { providerID: "openai", modelID: "gpt-5" },
+        variant: "high",
+        prompt: "Build software",
+        options: { temperature: 0.2, topP: 0.9 },
+        steps: undefined,
+      },
+    ])
   })
+})
 
-  test("extracts agents from keyed objects", () => {
+describe("normalizePermissionRequest", () => {
+  test("adapts the current permission request to app state", () => {
     expect(
-      normalizeAgentList({
-        build: agent("build"),
-        docs: agent("docs"),
+      normalizePermissionRequest({
+        id: "permission-1",
+        sessionID: "session-1",
+        action: "read",
+        resources: ["README.md"],
+        save: ["*.md"],
+        metadata: { path: "README.md" },
+        source: { type: "tool", messageID: "message-1", callID: "call-1" },
       }),
-    ).toEqual([agent("build"), agent("docs")])
+    ).toEqual({
+      id: "permission-1",
+      sessionID: "session-1",
+      permission: "read",
+      patterns: ["README.md"],
+      always: ["*.md"],
+      metadata: { path: "README.md" },
+      tool: { messageID: "message-1", callID: "call-1" },
+    })
   })
+})
 
-  test("drops invalid payloads", () => {
-    expect(normalizeAgentList({ name: "AbortError" })).toEqual([])
-    expect(normalizeAgentList([{ name: "build" }, agent("docs")])).toEqual([agent("docs")])
+describe("normalizeProviderList", () => {
+  test("groups current models into the app provider catalog", () => {
+    const result = normalizeProviderList(
+      [{ id: "openai", name: "OpenAI", package: "@ai-sdk/openai" }] as ProviderListOutput["data"],
+      [
+        {
+          id: "gpt-5",
+          modelID: "gpt-5",
+          providerID: "openai",
+          name: "GPT-5",
+          capabilities: { tools: true, input: ["text", "image"], output: ["text"] },
+          variants: [{ id: "high" }],
+          time: { released: 1 },
+          cost: [{ input: 1, output: 2, cache: { read: 0.1, write: 0.2 } }],
+          status: "active",
+          enabled: true,
+          limit: { context: 128_000, output: 8_192 },
+        },
+        {
+          id: "gpt-old",
+          modelID: "gpt-old",
+          providerID: "openai",
+          name: "GPT Old",
+          capabilities: { tools: false, input: ["text"], output: ["text"] },
+          variants: [],
+          time: { released: 0 },
+          cost: [],
+          status: "deprecated",
+          enabled: true,
+          limit: { context: 1, output: 1 },
+        },
+      ] as ModelListOutput["data"],
+      { id: "gpt-5", providerID: "openai" } as ModelDefaultOutput["data"],
+    )
+
+    expect(result.connected).toEqual(["openai"])
+    expect(result.default).toEqual({ openai: "gpt-5" })
+    expect(result.all.get("openai")?.models["gpt-old"]).toBeUndefined()
+    expect(result.all.get("openai")?.models["gpt-5"]).toMatchObject({
+      id: "gpt-5",
+      providerID: "openai",
+      capabilities: { toolcall: true, attachment: true },
+      cost: { input: 1, output: 2 },
+      variants: { high: {} },
+    })
   })
 })
 

packages/app/src/context/global-sync/utils.ts

@@ -1,39 +1,152 @@
-import type { Agent, Project, ProviderListResponse } from "@opencode-ai/sdk/v2/client"
+import type {
+  AgentListOutput,
+  ModelDefaultOutput,
+  ModelListOutput,
+  PermissionV2Request,
+  ProviderListOutput,
+} from "@opencode-ai/client/promise"
+import type { Agent, PermissionRequest, Project, Provider, ProviderListResponse } from "@opencode-ai/sdk/v2/client"
+import type { Project as CurrentProject } from "@opencode-ai/client/promise"
 import { NormalizedProviderListResponse } from "@opencode-ai/session-ui/context"
 export { pathKey as directoryKey, type PathKey as DirectoryKey } from "@/utils/path-key"
 
 export const cmp = (a: string, b: string) => (a < b ? -1 : a > b ? 1 : 0)
 
-function isAgent(input: unknown): input is Agent {
-  if (!input || typeof input !== "object") return false
-  const item = input as { name?: unknown; mode?: unknown }
-  if (typeof item.name !== "string") return false
-  return item.mode === "subagent" || item.mode === "primary" || item.mode === "all"
+export function normalizeAgentList(input: AgentListOutput["data"] | Agent[]): Agent[] {
+  if (input.every((agent) => !("request" in agent))) return input as Agent[]
+  return (input as AgentListOutput["data"]).map((agent) => ({
+    name: agent.id,
+    description: agent.description,
+    mode: agent.mode,
+    hidden: agent.hidden,
+    temperature:
+      typeof agent.request.settings.temperature === "number" ? agent.request.settings.temperature : undefined,
+    topP: typeof agent.request.settings.topP === "number" ? agent.request.settings.topP : undefined,
+    color: agent.color,
+    permission: agent.permissions.map((rule) => ({
+      permission: rule.action,
+      pattern: rule.resource,
+      action: rule.effect,
+    })),
+    model: agent.model && { providerID: agent.model.providerID, modelID: agent.model.id },
+    variant: agent.model?.variant,
+    prompt: agent.system,
+    options: agent.request.settings,
+    steps: agent.steps,
+  }))
 }
 
-export function normalizeAgentList(input: unknown): Agent[] {
-  if (Array.isArray(input)) return input.filter(isAgent)
-  if (isAgent(input)) return [input]
-  if (!input || typeof input !== "object") return []
-  return Object.values(input).filter(isAgent)
-}
-
-export function normalizeProviderList(input: ProviderListResponse): NormalizedProviderListResponse {
+export function normalizePermissionRequest(input: PermissionV2Request | PermissionRequest): PermissionRequest {
+  if ("permission" in input) return input
   return {
-    ...input,
-    all: new Map(
-      input.all.map(
-        (provider) =>
-          [
-            provider.id,
-            {
-              ...provider,
-              models: Object.fromEntries(
-                Object.entries(provider.models).filter(([, info]) => info.status !== "deprecated"),
-              ),
-            },
-          ] as const,
+    id: input.id,
+    sessionID: input.sessionID,
+    permission: input.action,
+    patterns: input.resources,
+    always: input.save ?? [],
+    metadata: input.metadata ?? {},
+    tool:
+      input.source?.type === "tool" ? { messageID: input.source.messageID, callID: input.source.callID } : undefined,
+  }
+}
+
+export function normalizeProviderList(
+  providers: ProviderListOutput["data"] | ProviderListResponse,
+  models?: ModelListOutput["data"],
+  defaultModel?: ModelDefaultOutput["data"],
+): NormalizedProviderListResponse {
+  if (!Array.isArray(providers)) {
+    return {
+      ...providers,
+      all: new Map(
+        providers.all.map((provider) => [
+          provider.id,
+          {
+            ...provider,
+            models: Object.fromEntries(
+              Object.entries(provider.models).filter(([, model]) => model.status !== "deprecated"),
+            ),
+          },
+        ]),
       ),
+    }
+  }
+  const all = new Map<string, Provider>()
+
+  for (const provider of providers) {
+    all.set(provider.id, {
+      id: provider.id,
+      name: provider.name,
+      source: "custom",
+      env: [],
+      options: provider.settings ?? {},
+      models: {},
+    })
+  }
+
+  for (const model of models ?? []) {
+    const provider = all.get(model.providerID)
+    if (!provider || model.status === "deprecated") continue
+    const cost = model.cost.find((item) => item.tier === undefined) ?? model.cost[0]
+    provider.models[model.id] = {
+      id: model.id,
+      providerID: model.providerID,
+      api: {
+        id: model.modelID,
+        url: "",
+        npm: model.package ?? provider.id,
+      },
+      name: model.name,
+      family: model.family,
+      capabilities: {
+        temperature: false,
+        reasoning: false,
+        attachment: model.capabilities.input.some((item) => item !== "text"),
+        toolcall: model.capabilities.tools,
+        input: {
+          text: model.capabilities.input.includes("text"),
+          audio: model.capabilities.input.includes("audio"),
+          image: model.capabilities.input.includes("image"),
+          video: model.capabilities.input.includes("video"),
+          pdf: model.capabilities.input.includes("pdf"),
+        },
+        output: {
+          text: model.capabilities.output.includes("text"),
+          audio: model.capabilities.output.includes("audio"),
+          image: model.capabilities.output.includes("image"),
+          video: model.capabilities.output.includes("video"),
+          pdf: model.capabilities.output.includes("pdf"),
+        },
+        interleaved: false,
+      },
+      cost: {
+        input: cost?.input ?? 0,
+        output: cost?.output ?? 0,
+        cache: {
+          read: cost?.cache.read ?? 0,
+          write: cost?.cache.write ?? 0,
+        },
+      },
+      limit: model.limit,
+      status: model.status,
+      options: model.settings ?? {},
+      headers: model.headers ?? {},
+      release_date: new Date(model.time.released).toISOString().slice(0, 10),
+      variants: Object.fromEntries(model.variants.map((variant) => [variant.id, variant.settings ?? {}])),
+    }
+  }
+
+  return {
+    all,
+    connected: providers.map((provider) => provider.id),
+    default: Object.fromEntries(
+      providers.flatMap((provider) => {
+        const model =
+          defaultModel?.providerID === provider.id
+            ? defaultModel
+            : models?.find((item) => item.providerID === provider.id && item.status !== "deprecated")
+        return model ? [[provider.id, model.id]] : []
+      }),
     ),
   }
 }
@@ -49,3 +162,10 @@ export function sanitizeProject(project: Project) {
     },
   }
 }
+
+export function normalizeProjectInfo(project: Project | CurrentProject): Project {
+  return {
+    ...project,
+    vcs: project.vcs === "git" ? "git" : undefined,
+  }
+}

packages/app/src/context/server-sdk.test.ts

@@ -1,5 +1,6 @@
 import { describe, expect, test } from "bun:test"
-import { coalesceServerEvents, enqueueServerEvent, resumeStreamAfterPageShow } from "./server-sdk"
+import { adaptServerEvent, coalesceServerEvents, enqueueServerEvent, resumeStreamAfterPageShow } from "./server-sdk"
+import type { OpenCodeEvent } from "@opencode-ai/client/promise"
 import type { Event } from "@opencode-ai/sdk/v2/client"
 
 describe("resumeStreamAfterPageShow", () => {
@@ -14,6 +15,23 @@ describe("resumeStreamAfterPageShow", () => {
   })
 })
 
+describe("adaptServerEvent", () => {
+  test("preserves V2 events while adapting permission requests for existing consumers", () => {
+    const current = {
+      id: "evt_1",
+      created: 1,
+      type: "permission.v2.asked",
+      data: { id: "perm_1", sessionID: "ses_1", action: "read", resources: ["src/**"] },
+    } as OpenCodeEvent
+
+    expect(adaptServerEvent(current)).toMatchObject({
+      type: "permission.asked",
+      properties: { id: "perm_1", sessionID: "ses_1", permission: "read", patterns: ["src/**"] },
+      current,
+    })
+  })
+})
+
 describe("coalesceServerEvents", () => {
   const delta = (value: string, field = "text", partID = "part") => ({
     directory: "/repo",
@@ -34,6 +52,23 @@ describe("coalesceServerEvents", () => {
     expect(result[0]?.payload).toMatchObject({ id: "second", properties: { delta: "hello world" } })
   })
 
+  test("merges adjacent current text deltas", () => {
+    const current = (id: string, value: string) => adaptServerEvent({
+      id,
+      created: 1,
+      type: "session.text.delta",
+      location: { directory: "/repo" },
+      data: { sessionID: "ses", assistantMessageID: "msg", ordinal: 0, delta: value },
+    } as OpenCodeEvent)
+    const result = coalesceServerEvents([
+      { directory: "/repo", payload: current("evt_1", "hello ") },
+      { directory: "/repo", payload: current("evt_2", "world") },
+    ])
+
+    expect(result).toHaveLength(1)
+    expect(result[0]?.payload.current).toMatchObject({ id: "evt_2", data: { delta: "hello world" } })
+  })
+
   test("preserves event boundaries and distinct fields", () => {
     const status = {
       directory: "/repo",

packages/app/src/context/server-sdk.tsx

@@ -1,21 +1,60 @@
+import type { OpenCodeEvent } from "@opencode-ai/client/promise"
 import type { Event } from "@opencode-ai/sdk/v2/client"
 import { createSimpleContext } from "@opencode-ai/ui/context"
 import { createGlobalEmitter } from "@solid-primitives/event-bus"
 import { makeEventListener } from "@solid-primitives/event-listener"
 import { type Accessor, batch, createMemo, onCleanup, onMount } from "solid-js"
-import { createSdkForServer } from "@/utils/server"
+import { createApiForServer, createSdkForServer } from "@/utils/server"
 import { useLanguage } from "./language"
 import { usePlatform } from "./platform"
 import { ServerConnection, useServer } from "./server"
 import { createRefCountMap } from "@/utils/refcount"
 import { useGlobal } from "./global"
 import { ServerScope } from "@/utils/server-scope"
+import { detectServerProtocol } from "@/utils/server-protocol"
+import { createCompatibleApi } from "@/utils/server-compat"
 
 const isAbortError = (error: unknown) =>
   error !== null && typeof error === "object" && "name" in error && error.name === "AbortError"
 
 const isStreamClosed = (error: unknown, signal?: AbortSignal) => isAbortError(error) || signal?.aborted === true
-type QueuedServerEvent = { directory: string; payload: Event }
+export type ServerEvent = Event & { current?: OpenCodeEvent }
+type QueuedServerEvent = { directory: string; payload: ServerEvent }
+type CurrentDelta = Extract<
+  OpenCodeEvent,
+  { type: "session.text.delta" | "session.reasoning.delta" | "session.tool.input.delta" | "session.compaction.delta" }
+>
+
+export function adaptServerEvent(event: OpenCodeEvent): ServerEvent {
+  if (event.type === "permission.v2.asked") {
+    return {
+      id: event.id,
+      type: "permission.asked",
+      properties: {
+        id: event.data.id,
+        sessionID: event.data.sessionID,
+        permission: event.data.action,
+        patterns: event.data.resources,
+        always: event.data.save ?? [],
+        metadata: event.data.metadata ?? {},
+        tool:
+          event.data.source?.type === "tool"
+            ? { messageID: event.data.source.messageID, callID: event.data.source.callID }
+            : undefined,
+      },
+      current: event,
+    } as ServerEvent
+  }
+  if (event.type === "permission.v2.replied")
+    return { id: event.id, type: "permission.replied", properties: event.data, current: event } as ServerEvent
+  if (event.type === "question.v2.asked")
+    return { id: event.id, type: "question.asked", properties: event.data, current: event } as ServerEvent
+  if (event.type === "question.v2.replied")
+    return { id: event.id, type: "question.replied", properties: event.data, current: event } as ServerEvent
+  if (event.type === "question.v2.rejected")
+    return { id: event.id, type: "question.rejected", properties: event.data, current: event } as ServerEvent
+  return { id: event.id, type: event.type, properties: event.data, current: event } as ServerEvent
+}
 
 const coalescedKey = (event: QueuedServerEvent) => {
   if (event.payload.type === "lsp.updated") return `lsp.updated:${event.directory}`
@@ -40,6 +79,34 @@ export function enqueueServerEvent(queue: QueuedServerEvent[], event: QueuedServ
 export function coalesceServerEvents(events: QueuedServerEvent[]) {
   const output: QueuedServerEvent[] = []
   events.forEach((event) => {
+    const current = currentDelta(event.payload.current)
+    if (current) {
+      const previous = output[output.length - 1]
+      const prior = currentDelta(previous?.payload.current)
+      if (
+        previous &&
+        prior &&
+        previous.directory === event.directory &&
+        currentDeltaKey(prior) === currentDeltaKey(current)
+      ) {
+        const fragment = currentDeltaFragment(prior) + currentDeltaFragment(current)
+        const data =
+          current.type === "session.compaction.delta"
+            ? { ...current.data, text: fragment }
+            : { ...current.data, delta: fragment }
+        output[output.length - 1] = {
+          directory: event.directory,
+          payload: {
+            ...event.payload,
+            properties: data,
+            current: { ...current, data } as CurrentDelta,
+          } as ServerEvent,
+        }
+        return
+      }
+      output.push(event)
+      return
+    }
     if (event.payload.type !== "message.part.delta") {
       output.push(event)
       return
@@ -71,6 +138,27 @@ export function coalesceServerEvents(events: QueuedServerEvent[]) {
   return output
 }
 
+function currentDelta(event: OpenCodeEvent | undefined): CurrentDelta | undefined {
+  if (
+    event?.type === "session.text.delta" ||
+    event?.type === "session.reasoning.delta" ||
+    event?.type === "session.tool.input.delta" ||
+    event?.type === "session.compaction.delta"
+  )
+    return event
+}
+
+function currentDeltaKey(event: CurrentDelta) {
+  if (event.type === "session.tool.input.delta")
+    return `${event.type}:${event.data.sessionID}:${event.data.assistantMessageID}:${event.data.callID}`
+  if (event.type === "session.compaction.delta") return `${event.type}:${event.data.sessionID}`
+  return `${event.type}:${event.data.sessionID}:${event.data.assistantMessageID}:${event.data.ordinal}`
+}
+
+function currentDeltaFragment(event: CurrentDelta) {
+  return event.type === "session.compaction.delta" ? event.data.text : event.data.delta
+}
+
 export function resumeStreamAfterPageShow(event: PageTransitionEvent, start: () => unknown) {
   if (!event.persisted) return
   start()
@@ -91,13 +179,15 @@ function createServerSdkContextBase(server: ServerConnection.Any, scope: ServerS
     }
   })()
 
+  const eventApi = createApiForServer({ server: server.http, fetch: eventFetch })
   const eventSdk = createSdkForServer({
     signal: abort.signal,
     fetch: eventFetch,
     server: server.http,
   })
+  const protocol = detectServerProtocol(server.http, platform.fetch ?? globalThis.fetch)
   const emitter = createGlobalEmitter<{
-    [key: string]: Event
+    [key: string]: ServerEvent
   }>()
 
   type Queued = QueuedServerEvent
@@ -142,21 +232,6 @@ function createServerSdkContextBase(server: ServerConnection.Any, scope: ServerS
   let run: Promise<void> | undefined
   let started = false
   let generation = 0
-  const HEARTBEAT_TIMEOUT_MS = 15_000
-  let lastEventAt = Date.now()
-  let heartbeat: ReturnType<typeof setTimeout> | undefined
-  const resetHeartbeat = () => {
-    lastEventAt = Date.now()
-    if (heartbeat) clearTimeout(heartbeat)
-    heartbeat = setTimeout(() => {
-      attempt?.abort()
-    }, HEARTBEAT_TIMEOUT_MS)
-  }
-  const clearHeartbeat = () => {
-    if (!heartbeat) return
-    clearTimeout(heartbeat)
-    heartbeat = undefined
-  }
 
   const start = () => {
     if (started) return run
@@ -168,35 +243,24 @@ function createServerSdkContextBase(server: ServerConnection.Any, scope: ServerS
       // oxlint-disable-next-line no-unmodified-loop-condition -- `started` is set to false by stop() which also aborts; both flags are checked to allow graceful exit
       while (!abort.signal.aborted && started && generation === active) {
         attempt = new AbortController()
-        lastEventAt = Date.now()
         const onAbort = () => {
           attempt?.abort()
         }
         abort.signal.addEventListener("abort", onAbort)
         try {
-          const events = await eventSdk.global.event({
-            signal: attempt.signal,
-            onSseError: (error) => {
-              if (isStreamClosed(error, attempt?.signal)) return
-              if (streamErrorLogged) return
-              streamErrorLogged = true
-              console.error("[global-sdk] event stream error", {
-                url: server.http.url,
-                fetch: eventFetch ? "platform" : "webview",
-                error,
-              })
-            },
-          })
+          const kind = await protocol
+          const events =
+            kind === "v1"
+              ? (await eventSdk.global.event({ signal: attempt.signal })).stream
+              : eventApi.event.subscribe({ signal: attempt.signal })
           let yielded = Date.now()
-          resetHeartbeat()
-          for await (const event of events.stream) {
-            resetHeartbeat()
+          for await (const event of events) {
             streamErrorLogged = false
-            if (event.payload.type !== "sync") {
-              const directory = event.directory ?? "global"
-              const payload = event.payload as Event
-              if (enqueueServerEvent(queue, { directory, payload })) schedule()
-            }
+            const legacy = "payload" in event
+            if (legacy && event.payload.type === "sync") continue
+            const directory = legacy ? (event.directory ?? "global") : (event.location?.directory ?? "global")
+            const payload = legacy ? (event.payload as Event) : adaptServerEvent(event)
+            if (enqueueServerEvent(queue, { directory, payload })) schedule()
 
             if (Date.now() - yielded < STREAM_YIELD_MS) continue
             yielded = Date.now()
@@ -214,7 +278,6 @@ function createServerSdkContextBase(server: ServerConnection.Any, scope: ServerS
         } finally {
           abort.signal.removeEventListener("abort", onAbort)
           attempt = undefined
-          clearHeartbeat()
         }
 
         if (abort.signal.aborted || !started || generation !== active) return
@@ -233,18 +296,11 @@ function createServerSdkContextBase(server: ServerConnection.Any, scope: ServerS
     started = false
     generation++
     attempt?.abort()
-    clearHeartbeat()
   }
 
   onMount(() => {
     makeEventListener(window, "pagehide", stop)
     makeEventListener(window, "pageshow", (event) => resumeStreamAfterPageShow(event, start))
-    makeEventListener(document, "visibilitychange", () => {
-      if (document.visibilityState !== "visible") return
-      if (!started) return
-      if (Date.now() - lastEventAt < HEARTBEAT_TIMEOUT_MS) return
-      attempt?.abort()
-    })
   })
 
   onCleanup(() => {
@@ -258,12 +314,24 @@ function createServerSdkContextBase(server: ServerConnection.Any, scope: ServerS
     fetch: platform.fetch,
     throwOnError: true,
   })
+  const currentApi = createApiForServer({ server: server.http, fetch: platform.fetch })
+  const legacy = (directory?: string) =>
+    createSdkForServer({
+      server: server.http,
+      fetch: platform.fetch,
+      throwOnError: true,
+      directory,
+    })
+  const api = createCompatibleApi({ protocol, current: currentApi, legacy })
 
   return {
     server,
     scope,
+    protocol,
     url: server.http.url,
     client: sdk,
+    api,
+    currentApi,
     event: {
       on: emitter.on.bind(emitter),
       listen: emitter.listen.bind(emitter),
@@ -309,7 +377,7 @@ export const { use: useServerSDK, provider: ServerSDKProvider } = createSimpleCo
 })
 
 type SDKEventMap = {
-  [key in Event["type"]]: Extract<Event, { type: key }>
+  [key in Event["type"]]: Extract<ServerEvent, { type: key }>
 }
 
 function createDirSdkContext(directory: string, serverSDK: ServerSDKBase) {
@@ -329,6 +397,12 @@ function createDirSdkContext(directory: string, serverSDK: ServerSDKBase) {
     scope: serverSDK.scope,
     directory,
     client,
+    api: createCompatibleApi({
+      protocol: serverSDK.protocol,
+      current: serverSDK.currentApi,
+      legacy: (next) => serverSDK.createClient({ directory: next ?? directory, throwOnError: true }),
+      directory,
+    }),
     event: emitter,
     get url() {
       return serverSDK.url

packages/app/src/context/server-session-v2-reducer.test.ts

@@ -0,0 +1,148 @@
+import { describe, expect, test } from "bun:test"
+import type { OpenCodeEvent, SessionMessageInfo } from "@opencode-ai/client/promise"
+import { createV2SessionReducer } from "./server-session-v2-reducer"
+
+const event = (input: object) => input as OpenCodeEvent
+const base = { created: 1, location: { directory: "/repo" }, durable: { aggregateID: "ses_1", seq: 1, version: 1 } }
+
+describe("v2 session reducer", () => {
+  test("projects promoted input and streaming assistant content", () => {
+    const reducer = createV2SessionReducer()
+    let messages: SessionMessageInfo[] = []
+    const apply = (input: object) => {
+      const result = reducer.reduce(messages, event(input))
+      if (result) messages = result.messages
+      return result
+    }
+
+    apply({
+      ...base,
+      id: "evt_admitted",
+      type: "session.input.admitted",
+      data: {
+        sessionID: "ses_1",
+        inputID: "msg_user",
+        input: { type: "user", delivery: "steer", data: { text: "hello" } },
+      },
+    })
+    apply({ ...base, id: "evt_promoted", type: "session.input.promoted", data: { sessionID: "ses_1", inputID: "msg_user" } })
+    apply({
+      ...base,
+      id: "evt_step",
+      type: "session.step.started",
+      data: {
+        sessionID: "ses_1",
+        assistantMessageID: "msg_assistant",
+        agent: "build",
+        model: { id: "model", providerID: "provider" },
+      },
+    })
+    apply({
+      ...base,
+      id: "evt_text_start",
+      type: "session.text.started",
+      data: { sessionID: "ses_1", assistantMessageID: "msg_assistant", ordinal: 0 },
+    })
+    apply({
+      ...base,
+      id: "evt_text_delta",
+      type: "session.text.delta",
+      data: { sessionID: "ses_1", assistantMessageID: "msg_assistant", ordinal: 0, delta: "hel" },
+    })
+    apply({
+      ...base,
+      id: "evt_text_end",
+      type: "session.text.ended",
+      data: { sessionID: "ses_1", assistantMessageID: "msg_assistant", ordinal: 0, text: "hello" },
+    })
+
+    expect(messages[0]).toMatchObject({ id: "msg_user", type: "user", text: "hello" })
+    expect(messages[1]).toMatchObject({
+      id: "msg_assistant",
+      type: "assistant",
+      content: [{ type: "text", text: "hello" }],
+    })
+  })
+
+  test("folds tool, retry, and completion events", () => {
+    const reducer = createV2SessionReducer()
+    let messages: SessionMessageInfo[] = []
+    const apply = (input: object) => {
+      const result = reducer.reduce(messages, event(input))
+      if (result) messages = result.messages
+    }
+
+    apply({
+      ...base,
+      id: "evt_step",
+      type: "session.step.started",
+      data: {
+        sessionID: "ses_1",
+        assistantMessageID: "msg_assistant",
+        agent: "build",
+        model: { id: "model", providerID: "provider" },
+      },
+    })
+    apply({
+      ...base,
+      id: "evt_tool_start",
+      type: "session.tool.input.started",
+      data: { sessionID: "ses_1", assistantMessageID: "msg_assistant", callID: "call_1", name: "bash" },
+    })
+    apply({
+      ...base,
+      id: "evt_tool_delta",
+      type: "session.tool.input.delta",
+      data: { sessionID: "ses_1", assistantMessageID: "msg_assistant", callID: "call_1", delta: "{}" },
+    })
+    apply({
+      ...base,
+      id: "evt_tool_called",
+      type: "session.tool.called",
+      data: { sessionID: "ses_1", assistantMessageID: "msg_assistant", callID: "call_1", input: {}, executed: true },
+    })
+    apply({
+      ...base,
+      id: "evt_tool_success",
+      type: "session.tool.success",
+      data: {
+        sessionID: "ses_1",
+        assistantMessageID: "msg_assistant",
+        callID: "call_1",
+        structured: {},
+        content: [{ type: "text", text: "done" }],
+        executed: true,
+      },
+    })
+    apply({
+      ...base,
+      id: "evt_retry",
+      type: "session.retry.scheduled",
+      data: {
+        sessionID: "ses_1",
+        assistantMessageID: "msg_assistant",
+        attempt: 2,
+        at: 10,
+        error: { type: "ProviderError", message: "retry" },
+      },
+    })
+    apply({ ...base, id: "evt_done", type: "session.execution.succeeded", data: { sessionID: "ses_1" } })
+
+    expect(messages[0]).toMatchObject({
+      type: "assistant",
+      retry: undefined,
+      content: [{ type: "tool", id: "call_1", state: { status: "completed", content: [{ text: "done" }] } }],
+    })
+  })
+
+  test("requests hydration when promotion admission was missed", () => {
+    const result = createV2SessionReducer().reduce([], event({
+      ...base,
+      id: "evt_promoted",
+      type: "session.input.promoted",
+      data: { sessionID: "ses_1", inputID: "msg_user" },
+    }))
+
+    expect(result).toMatchObject({ sessionID: "ses_1", missing: "msg_user", touched: [] })
+  })
+})

packages/app/src/context/server-session-v2-reducer.ts

@@ -0,0 +1,434 @@
+import type { OpenCodeEvent, SessionMessageInfo, SessionPendingMessage } from "@opencode-ai/client/promise"
+
+type Assistant = Extract<SessionMessageInfo, { type: "assistant" }>
+type Compaction = Extract<SessionMessageInfo, { type: "compaction" }>
+type Shell = Extract<SessionMessageInfo, { type: "shell" }>
+
+export type V2SessionReduction = {
+  sessionID: string
+  messages: SessionMessageInfo[]
+  touched: string[]
+  missing?: string
+}
+
+export function createV2SessionReducer() {
+  const pending = new Map<string, SessionPendingMessage>()
+
+  const reduce = (source: readonly SessionMessageInfo[], event: OpenCodeEvent): V2SessionReduction | undefined => {
+    if (!("data" in event) || !("sessionID" in event.data) || typeof event.data.sessionID !== "string") return
+    const sessionID = event.data.sessionID
+    const result = (messages: SessionMessageInfo[], touched: string[] = []): V2SessionReduction => ({
+      sessionID,
+      messages,
+      touched,
+    })
+    const append = (message: SessionMessageInfo) =>
+      result(source.some((item) => item.id === message.id) ? [...source] : [...source, message], [message.id])
+
+    switch (event.type) {
+      case "session.input.admitted":
+        pending.set(key(sessionID, event.data.inputID), event.data.input)
+        return result([...source])
+      case "session.input.promoted": {
+        const input = pending.get(key(sessionID, event.data.inputID))
+        pending.delete(key(sessionID, event.data.inputID))
+        if (!input) return { ...result([...source]), missing: event.data.inputID }
+        if (input.type === "user")
+          return append({
+            id: event.data.inputID,
+            type: "user",
+            metadata: input.data.metadata,
+            text: input.data.text,
+            files: input.data.files,
+            agents: input.data.agents,
+            time: { created: event.created },
+          })
+        return append({
+          id: event.data.inputID,
+          type: "synthetic",
+          metadata: input.data.metadata,
+          text: input.data.text,
+          description: input.data.description,
+          time: { created: event.created },
+        })
+      }
+      case "session.agent.selected":
+        return append({
+          id: messageID(event.id),
+          type: "agent-switched",
+          metadata: event.metadata,
+          agent: event.data.agent,
+          time: { created: event.created },
+        })
+      case "session.model.selected":
+        return append({
+          id: messageID(event.id),
+          type: "model-switched",
+          metadata: event.metadata,
+          model: event.data.model,
+          previous: source.findLast(
+            (item): item is Extract<SessionMessageInfo, { type: "model-switched" | "assistant" }> =>
+              item.type === "model-switched" || item.type === "assistant",
+          )?.model,
+          time: { created: event.created },
+        })
+      case "session.synthetic":
+        return append({
+          id: messageID(event.id),
+          type: "synthetic",
+          metadata: event.data.metadata,
+          text: event.data.text,
+          description: event.data.description,
+          time: { created: event.created },
+        })
+      case "session.skill.activated":
+        return append({
+          id: messageID(event.id),
+          type: "skill",
+          metadata: event.metadata,
+          skill: event.data.id,
+          name: event.data.name,
+          text: event.data.text,
+          time: { created: event.created },
+        })
+      case "session.shell.started":
+        return append({
+          id: messageID(event.id),
+          type: "shell",
+          metadata: event.metadata,
+          shellID: event.data.shell.id,
+          command: event.data.shell.command,
+          status: event.data.shell.status,
+          exit: event.data.shell.exit,
+          time: { created: event.created },
+        })
+      case "session.shell.ended":
+        return updateMessage<Shell>(source, (item): item is Shell => item.type === "shell" && item.shellID === event.data.shell.id, (item) => ({
+          ...item,
+          status: event.data.shell.status,
+          exit: event.data.shell.exit,
+          output: event.data.output,
+          time: { ...item.time, completed: event.created },
+        }), sessionID)
+      case "session.step.started": {
+        const current = source.findLast((item): item is Assistant => item.type === "assistant" && !item.time.completed)
+        const completed = current && current.id !== event.data.assistantMessageID
+          ? update(source, current.id, (item) => item.type === "assistant" ? { ...item, retry: undefined, time: { ...item.time, completed: event.created } } : item)
+          : [...source]
+        const existing = completed.find((item) => item.id === event.data.assistantMessageID)
+        if (existing?.type === "assistant")
+          return result(update(completed, existing.id, (item) => item.type === "assistant" ? {
+            ...item,
+            agent: event.data.agent,
+            model: event.data.model,
+            retry: undefined,
+            error: undefined,
+            finish: undefined,
+            snapshot: event.data.snapshot ? { ...item.snapshot, start: event.data.snapshot } : item.snapshot,
+            time: { ...item.time, completed: undefined },
+          } : item), current && current.id !== existing.id ? [current.id, existing.id] : [existing.id])
+        return result([...completed, {
+          id: event.data.assistantMessageID,
+          type: "assistant",
+          metadata: event.metadata,
+          agent: event.data.agent,
+          model: event.data.model,
+          content: [],
+          snapshot: event.data.snapshot ? { start: event.data.snapshot } : undefined,
+          time: { created: event.created },
+        }], current ? [current.id, event.data.assistantMessageID] : [event.data.assistantMessageID])
+      }
+      case "session.step.ended":
+        return updateAssistant(source, event.data.assistantMessageID, sessionID, (item) => ({
+          ...item,
+          finish: event.data.finish,
+          cost: event.data.cost,
+          tokens: event.data.tokens,
+          snapshot: event.data.snapshot || event.data.files
+            ? { ...item.snapshot, end: event.data.snapshot, files: event.data.files }
+            : item.snapshot,
+          time: { ...item.time, completed: event.created },
+        }))
+      case "session.step.failed":
+        return updateAssistant(source, event.data.assistantMessageID, sessionID, (item) => ({
+          ...item,
+          finish: "error",
+          error: event.data.error,
+          retry: undefined,
+          cost: event.data.cost ?? item.cost,
+          tokens: event.data.tokens ?? item.tokens,
+          snapshot: event.data.snapshot || event.data.files
+            ? { ...item.snapshot, end: event.data.snapshot, files: event.data.files }
+            : item.snapshot,
+          time: { ...item.time, completed: event.created },
+        }))
+      case "session.text.started":
+        return updateAssistant(source, event.data.assistantMessageID, sessionID, (item) => ({
+          ...item,
+          content: insertOrdinal(item.content, "text", event.data.ordinal, { type: "text", text: "" }),
+        }))
+      case "session.text.delta":
+        return updateContent(source, event.data.assistantMessageID, sessionID, "text", event.data.ordinal, (item) => ({
+          ...item,
+          text: item.text + event.data.delta,
+        }))
+      case "session.text.ended":
+        return updateContent(source, event.data.assistantMessageID, sessionID, "text", event.data.ordinal, (item) => ({
+          ...item,
+          text: event.data.text,
+        }))
+      case "session.reasoning.started":
+        return updateAssistant(source, event.data.assistantMessageID, sessionID, (item) => ({
+          ...item,
+          content: insertOrdinal(item.content, "reasoning", event.data.ordinal, {
+            type: "reasoning",
+            text: "",
+            state: event.data.state,
+            time: { created: event.created },
+          }),
+        }))
+      case "session.reasoning.delta":
+        return updateContent(source, event.data.assistantMessageID, sessionID, "reasoning", event.data.ordinal, (item) => ({
+          ...item,
+          text: item.text + event.data.delta,
+        }))
+      case "session.reasoning.ended":
+        return updateContent(source, event.data.assistantMessageID, sessionID, "reasoning", event.data.ordinal, (item) => ({
+          ...item,
+          text: event.data.text,
+          state: event.data.state ?? item.state,
+          time: { created: item.time?.created ?? event.created, completed: event.created },
+        }))
+      case "session.tool.input.started":
+        return updateAssistant(source, event.data.assistantMessageID, sessionID, (item) => ({
+          ...item,
+          content: item.content.some((content) => content.type === "tool" && content.id === event.data.callID)
+            ? item.content
+            : [...item.content, {
+                type: "tool",
+                id: event.data.callID,
+                name: event.data.name,
+                state: { status: "streaming", input: "" },
+                time: { created: event.created },
+              }],
+        }))
+      case "session.tool.input.delta":
+        return updateTool(source, event.data.assistantMessageID, event.data.callID, sessionID, (tool) =>
+          tool.state.status === "streaming"
+            ? { ...tool, state: { ...tool.state, input: tool.state.input + event.data.delta } }
+            : tool,
+        )
+      case "session.tool.input.ended":
+        return updateTool(source, event.data.assistantMessageID, event.data.callID, sessionID, (tool) =>
+          tool.state.status === "streaming" ? { ...tool, state: { ...tool.state, input: event.data.text } } : tool,
+        )
+      case "session.tool.called":
+        return updateTool(source, event.data.assistantMessageID, event.data.callID, sessionID, (tool) => ({
+          ...tool,
+          executed: event.data.executed,
+          providerState: event.data.state,
+          state: { status: "running", input: event.data.input, structured: {}, content: [] },
+          time: { ...tool.time, ran: event.created },
+        }))
+      case "session.tool.progress":
+        return updateTool(source, event.data.assistantMessageID, event.data.callID, sessionID, (tool) =>
+          tool.state.status === "running"
+            ? { ...tool, state: { ...tool.state, structured: event.data.structured, content: event.data.content } }
+            : tool,
+        )
+      case "session.tool.success":
+        return updateTool(source, event.data.assistantMessageID, event.data.callID, sessionID, (tool) => {
+          if (tool.state.status !== "running") return tool
+          return {
+            ...tool,
+            executed: event.data.executed || tool.executed === true,
+            providerResultState: event.data.resultState,
+            state: {
+              status: "completed",
+              input: tool.state.input,
+              structured: event.data.structured,
+              content: event.data.content,
+              result: event.data.result,
+            },
+            time: { ...tool.time, completed: event.created },
+          }
+        })
+      case "session.tool.failed":
+        return updateTool(source, event.data.assistantMessageID, event.data.callID, sessionID, (tool) => {
+          if (tool.state.status !== "streaming" && tool.state.status !== "running") return tool
+          return {
+            ...tool,
+            executed: event.data.executed || tool.executed === true,
+            providerResultState: event.data.resultState,
+            state: {
+              status: "error",
+              input: typeof tool.state.input === "string" ? {} : tool.state.input,
+              structured: tool.state.status === "running" ? tool.state.structured : {},
+              content: tool.state.status === "running" ? tool.state.content : [],
+              error: event.data.error,
+              result: event.data.result,
+            },
+            time: { ...tool.time, completed: event.created },
+          }
+        })
+      case "session.retry.scheduled":
+        return updateAssistant(source, event.data.assistantMessageID, sessionID, (item) => ({
+          ...item,
+          retry: { attempt: event.data.attempt, at: event.data.at, error: event.data.error },
+        }))
+      case "session.execution.succeeded":
+      case "session.execution.failed":
+      case "session.execution.interrupted": {
+        const current = source.findLast((item): item is Assistant => item.type === "assistant" && !item.time.completed)
+        if (!current?.retry) return result([...source])
+        return updateAssistant(source, current.id, sessionID, (item) => ({ ...item, retry: undefined }))
+      }
+      case "session.compaction.started":
+        return append({
+          id: event.data.inputID ?? messageID(event.id),
+          type: "compaction",
+          status: "running",
+          metadata: event.metadata,
+          reason: event.data.reason,
+          summary: "",
+          recent: event.data.recent,
+          time: { created: event.created },
+        })
+      case "session.compaction.delta":
+        return updateMessage<Extract<Compaction, { status: "running" }>>(source, (item): item is Extract<Compaction, { status: "running" }> => item.type === "compaction" && item.status === "running", (item) => ({
+          ...item,
+          summary: item.summary + event.data.text,
+        }), sessionID)
+      case "session.compaction.ended": {
+        const current = source.findLast((item): item is Extract<Compaction, { status: "running" }> => item.type === "compaction" && item.status === "running")
+        if (!current)
+          return append({
+            id: messageID(event.id),
+            type: "compaction",
+            status: "completed",
+            metadata: event.metadata,
+            reason: event.data.reason,
+            summary: event.data.text,
+            recent: event.data.recent,
+            time: { created: event.created },
+          })
+        return result(update(source, current.id, () => ({
+          ...current,
+          status: "completed",
+          reason: event.data.reason,
+          summary: event.data.text,
+          recent: event.data.recent,
+        })), [current.id])
+      }
+      case "session.compaction.failed": {
+        const current = source.findLast((item): item is Extract<Compaction, { status: "running" }> => item.type === "compaction" && item.status === "running")
+        const failed: Extract<Compaction, { status: "failed" }> = {
+          id: current?.id ?? event.data.inputID ?? messageID(event.id),
+          type: "compaction",
+          status: "failed",
+          metadata: current?.metadata ?? event.metadata,
+          reason: event.data.reason,
+          error: event.data.error,
+          time: current?.time ?? { created: event.created },
+        }
+        if (!current) return append(failed)
+        return result(update(source, current.id, () => failed), [failed.id])
+      }
+      default:
+        return
+    }
+  }
+
+  return {
+    reduce,
+    clear(sessionID: string) {
+      for (const id of pending.keys()) {
+        if (id.startsWith(`${sessionID}:`)) pending.delete(id)
+      }
+    },
+  }
+}
+
+function key(sessionID: string, inputID: string) {
+  return `${sessionID}:${inputID}`
+}
+
+function messageID(eventID: string) {
+  return eventID.replace(/^evt_/, "msg_")
+}
+
+function update(
+  source: readonly SessionMessageInfo[],
+  id: string,
+  apply: (item: SessionMessageInfo) => SessionMessageInfo,
+) {
+  return source.map((item) => item.id === id ? apply(item) : item)
+}
+
+function updateMessage<T extends SessionMessageInfo>(
+  source: readonly SessionMessageInfo[],
+  matches: (item: SessionMessageInfo) => item is T,
+  apply: (item: T) => T,
+  sessionID: string,
+): V2SessionReduction {
+  const current = source.findLast(matches)
+  if (!current) return { sessionID, messages: [...source], touched: [] }
+  return { sessionID, messages: update(source, current.id, (item) => matches(item) ? apply(item) : item), touched: [current.id] }
+}
+
+function updateAssistant(
+  source: readonly SessionMessageInfo[],
+  id: string,
+  sessionID: string,
+  apply: (item: Assistant) => Assistant,
+): V2SessionReduction {
+  return {
+    sessionID,
+    messages: update(source, id, (item) => item.type === "assistant" ? apply(item) : item),
+    touched: source.some((item) => item.id === id && item.type === "assistant") ? [id] : [],
+  }
+}
+
+function updateContent<T extends "text" | "reasoning">(
+  source: readonly SessionMessageInfo[],
+  messageID: string,
+  sessionID: string,
+  type: T,
+  ordinal: number,
+  apply: (item: Extract<Assistant["content"][number], { type: T }>) => Extract<Assistant["content"][number], { type: T }>,
+) {
+  return updateAssistant(source, messageID, sessionID, (assistant) => {
+    let index = -1
+    return {
+      ...assistant,
+      content: assistant.content.map((item) => {
+        if (item.type !== type || ++index !== ordinal) return item
+        return apply(item as Extract<Assistant["content"][number], { type: T }>)
+      }),
+    }
+  })
+}
+
+function updateTool(
+  source: readonly SessionMessageInfo[],
+  messageID: string,
+  callID: string,
+  sessionID: string,
+  apply: (item: Extract<Assistant["content"][number], { type: "tool" }>) => Extract<Assistant["content"][number], { type: "tool" }>,
+) {
+  return updateAssistant(source, messageID, sessionID, (assistant) => ({
+    ...assistant,
+    content: assistant.content.map((item) => item.type === "tool" && item.id === callID ? apply(item) : item),
+  }))
+}
+
+function insertOrdinal<T extends Assistant["content"][number]["type"]>(
+  source: Assistant["content"],
+  type: T,
+  ordinal: number,
+  item: Extract<Assistant["content"][number], { type: T }>,
+) {
+  const matches = source.filter((content) => content.type === type)
+  if (matches[ordinal]) return source
+  return [...source, item]
+}

packages/app/src/context/server-session.test.ts

@@ -1,5 +1,6 @@
 import { describe, expect, test } from "bun:test"
 import type { retry } from "@opencode-ai/core/util/retry"
+import type { MessageApi, OpenCodeEvent, SessionApi } from "@opencode-ai/client/promise"
 import type { Message, OpencodeClient, Part, Session } from "@opencode-ai/sdk/v2/client"
 import { createServerSession } from "./server-session"
 
@@ -158,6 +159,57 @@ function setup(sessions: Record<string, Session>) {
 }
 
 describe("server session", () => {
+  test("projects V2 session events into current and legacy message state", () => {
+    const ctx = setup({ child: session("child") })
+    ctx.store.remember(session("child"))
+    ctx.store.set("session_message", "child", [
+      {
+        id: "msg_1_user",
+        type: "user",
+        text: "hello",
+        time: { created: 1 },
+      },
+    ])
+    const apply = (input: object) => ctx.store.applyV2(input as OpenCodeEvent)
+
+    apply({
+      id: "evt_step",
+      created: 2,
+      type: "session.step.started",
+      durable: { aggregateID: "child", seq: 1, version: 1 },
+      location: { directory: "/repo" },
+      data: {
+        sessionID: "child",
+        assistantMessageID: "msg_2_assistant",
+        agent: "build",
+        model: { id: "model", providerID: "provider" },
+      },
+    })
+    apply({
+      id: "evt_text_start",
+      created: 3,
+      type: "session.text.started",
+      durable: { aggregateID: "child", seq: 2, version: 1 },
+      location: { directory: "/repo" },
+      data: { sessionID: "child", assistantMessageID: "msg_2_assistant", ordinal: 0 },
+    })
+    apply({
+      id: "evt_text_delta",
+      created: 4,
+      type: "session.text.delta",
+      location: { directory: "/repo" },
+      data: { sessionID: "child", assistantMessageID: "msg_2_assistant", ordinal: 0, delta: "world" },
+    })
+
+    expect(ctx.store.data.session_message.child?.at(-1)).toMatchObject({
+      id: "msg_2_assistant",
+      type: "assistant",
+      content: [{ type: "text", text: "world" }],
+    })
+    expect(ctx.store.data.message.child?.map((message) => message.id)).toEqual(["msg_1_user", "msg_2_assistant"])
+    expect(ctx.store.data.part.msg_2_assistant).toMatchObject([{ type: "text", text: "world" }])
+  })
+
   test("resolves lineage by session ID without directory", async () => {
     const ctx = setup({ child: session("child", "root"), root: session("root") })
 
@@ -178,6 +230,111 @@ describe("server session", () => {
     expect(ctx.store.data.message.root).toEqual([])
   })
 
+  test("loads current session content through the current message API", async () => {
+    const requests: unknown[] = []
+    const user = { id: "msg_z_user", type: "user", text: "hello", time: { created: 1 } }
+    const assistant = {
+      id: "msg_a_assistant",
+      type: "assistant",
+      agent: "build",
+      model: { id: "model", providerID: "provider" },
+      content: [{ type: "text", text: "hi" }],
+      time: { created: 2, completed: 3 },
+    }
+    const client = {
+      session: {
+        messages: () => {
+          throw new Error("legacy message endpoint called")
+        },
+      },
+    } as unknown as OpencodeClient
+    const messageApi = {
+      list: async (input: unknown) => {
+        requests.push(input)
+        return { data: [assistant, user], cursor: { previous: null, next: null } }
+      },
+    } as unknown as MessageApi
+    const store = createServerSession(client, {} as SessionApi, messageApi)
+    store.remember(session("root"))
+
+    await store.sync("root")
+
+    expect(requests).toEqual([{ sessionID: "root", limit: 20, order: "desc" }])
+    expect(store.data.session_message.root.map((message) => message.id)).toEqual([user.id, assistant.id])
+  })
+
+  test("reprojects current assistants when an older page supplies their user", async () => {
+    const user = { id: "msg_1_user", type: "user", text: "hello", time: { created: 1 } } as const
+    const assistant = (id: string, created: number) => ({
+      id,
+      type: "assistant" as const,
+      agent: "build",
+      model: { id: "model", providerID: "provider" },
+      content: [{ type: "text" as const, text: id }],
+      time: { created, completed: created },
+    })
+    const assistants = [
+      assistant("msg_2_assistant", 2),
+      assistant("msg_3_assistant", 3),
+      assistant("msg_4_assistant", 4),
+    ]
+    const pages = [
+      { data: assistants.slice(1).toReversed(), cursor: { previous: null, next: "older" } },
+      { data: [assistants[0], user], cursor: { previous: null, next: null } },
+    ]
+    const messageApi = {
+      list: async () => pages.shift()!,
+    } as unknown as MessageApi
+    const store = createServerSession({} as OpencodeClient, {} as SessionApi, messageApi)
+    store.remember(session("root"))
+
+    await store.sync("root")
+    expect(store.data.message.root).toEqual([])
+
+    await store.history.loadMore("root")
+
+    expect(store.data.message.root.map((message) => message.id)).toEqual([
+      user.id,
+      ...assistants.map((item) => item.id),
+    ])
+    expect(assistants.map((item) => store.data.part[item.id]?.[0]?.type)).toEqual(["text", "text", "text"])
+  })
+
+  test("indexes V1 messages for the current timeline projection", async () => {
+    const user = userMessage("message-1", { sessionID: "root" })
+    const assistant = assistantMessage("message-2", user.id, { sessionID: "root" })
+    const client = messageClient(
+      response([
+        { info: user, parts: [textPart(user.id, { sessionID: "root" })] },
+        { info: assistant, parts: [textPart(assistant.id, { sessionID: "root" })] },
+      ]),
+    )
+    const messageApi = {
+      list: () => {
+        throw new Error("current message endpoint called")
+      },
+    } as unknown as MessageApi
+    const store = createServerSession(client, {} as SessionApi, messageApi, {
+      protocol: Promise.resolve("v1"),
+    })
+    store.remember(session("root"))
+
+    await store.sync("root")
+
+    expect(store.data.message.root.map((message) => message.id)).toEqual([user.id, assistant.id])
+    expect(store.data.session_message.root).toMatchObject([
+      { id: user.id, type: "user", text: "text" },
+      { id: assistant.id, type: "assistant" },
+    ])
+
+    const next = userMessage("message-3", { sessionID: "root" })
+    store.apply({ type: "message.updated", properties: { info: next } })
+    expect(store.data.session_message.root.map((message) => message.id)).toEqual([user.id, assistant.id, next.id])
+
+    store.apply({ type: "message.removed", properties: { sessionID: "root", messageID: next.id } })
+    expect(store.data.session_message.root.map((message) => message.id)).toEqual([user.id, assistant.id])
+  })
+
   test("backfills an assistant-only initial page through its user root", async () => {
     const user = userMessage("message-1")
     const assistants = [assistantMessage("message-2", user.id), assistantMessage("message-3", user.id)]

packages/app/src/context/server-session.ts

@@ -1,5 +1,6 @@
 import { Binary } from "@opencode-ai/core/util/binary"
 import { retry } from "@opencode-ai/core/util/retry"
+import type { MessageApi, OpenCodeEvent, SessionApi, SessionMessageInfo } from "@opencode-ai/client/promise"
 import type {
   Message,
   OpencodeClient,
@@ -8,15 +9,18 @@ import type {
   QuestionRequest,
   Session,
   SessionStatus,
-  SnapshotFileDiff,
   Todo,
 } from "@opencode-ai/sdk/v2/client"
+import type { FileDiffInfo } from "@opencode-ai/client/promise"
 import { batch } from "solid-js"
 import { createStore, produce, reconcile } from "solid-js/store"
-import { diffs as cleanDiffs, message as cleanMessage } from "@/utils/diffs"
+import { message as cleanMessage } from "@/utils/diffs"
 import { sessionNotFoundError } from "@/utils/server-errors"
 import { rootSession } from "@/utils/session-route"
+import { normalizeSessionInfo } from "@/utils/session"
+import { normalizeSessionMessages } from "@/utils/session-message"
 import { dropSessionCaches, pickSessionCacheEvictions, SESSION_CACHE_LIMIT } from "./global-sync/session-cache"
+import { createV2SessionReducer, type V2SessionReduction } from "./server-session-v2-reducer"
 
 const cmp = (a: string, b: string) => (a < b ? -1 : a > b ? 1 : 0)
 const cmpMessage = (a: Message, b: Message) => a.time.created - b.time.created || cmp(a.id, b.id)
@@ -36,10 +40,37 @@ type OptimisticItem = {
 type MessagePage = {
   session: Message[]
   part: { id: string; part: Part[] }[]
+  source?: SessionMessageInfo[]
+  sourceMode?: "latest" | "older"
+  projectSource?: boolean
   cursor?: string
   complete: boolean
 }
 
+function legacyMessageSource(items: { info: Message; parts: Part[] }[]): SessionMessageInfo[] {
+  return items
+    .slice()
+    .sort((a, b) => cmp(a.info.id, b.info.id))
+    .map((item) => {
+      if (item.info.role === "user") {
+        return {
+          id: item.info.id,
+          type: "user" as const,
+          text: item.parts.flatMap((part) => (part.type === "text" ? [part.text] : [])).join("\n"),
+          time: item.info.time,
+        }
+      }
+      return {
+        id: item.info.id,
+        type: "assistant" as const,
+        agent: item.info.agent ?? item.info.mode,
+        model: { id: item.info.modelID, providerID: item.info.providerID, variant: item.info.variant },
+        content: [],
+        time: item.info.time,
+      }
+    })
+}
+
 // Most markers describe the current HTTP attempt; deltaParts persists non-durable stream state across retries.
 type MessageLoadState = {
   touchedMessages: Set<string>
@@ -52,6 +83,7 @@ type MessageLoadState = {
   optimisticParts: Map<string, Set<string>>
   orphanParents: Set<string>
   clearedMessageParts: Set<string>
+  touchedSource: Set<string>
 }
 
 type MessageLoadBaseline = Pick<
@@ -137,15 +169,25 @@ function reconcileFetched<T extends { id: string }>(
   return [...result.values()].sort((a, b) => cmp(a.id, b.id))
 }
 
-export function createServerSession(client: OpencodeClient, options?: { retry?: typeof retry }) {
+type ServerSessionOptions = { retry?: typeof retry; protocol?: Promise<"v1" | "v2"> }
+
+export function createServerSession(
+  client: OpencodeClient,
+  sessionApiOrOptions?: SessionApi | ServerSessionOptions,
+  messageApi?: MessageApi,
+  currentOptions?: ServerSessionOptions,
+) {
+  const sessionApi = messageApi ? (sessionApiOrOptions as SessionApi) : undefined
+  const options = messageApi ? currentOptions : (sessionApiOrOptions as ServerSessionOptions | undefined)
   const [data, setData] = createStore({
     info: {} as Record<string, Session | undefined>,
     session_status: {} as Record<string, SessionStatus>,
-    session_diff: {} as Record<string, SnapshotFileDiff[]>,
+    session_diff: {} as Record<string, FileDiffInfo[]>,
     todo: {} as Record<string, Todo[]>,
     permission: {} as Record<string, PermissionRequest[]>,
     question: {} as Record<string, QuestionRequest[]>,
     message: {} as Record<string, Message[]>,
+    session_message: {} as Record<string, SessionMessageInfo[]>,
     part: {} as Record<string, Part[]>,
     part_text_accum_delta: {} as Record<string, string>,
     session_working(id: string) {
@@ -154,9 +196,9 @@ export function createServerSession(client: OpencodeClient, options?: { retry?:
   })
   const requests = new Map<string, Promise<Session>>()
   const inflight = new Map<string, Promise<void>>()
-  const inflightDiff = new Map<string, Promise<void>>()
   const inflightTodo = new Map<string, Promise<void>>()
   const optimistic = new Map<string, Map<string, OptimisticItem>>()
+  const v2 = createV2SessionReducer()
   const messageLoads = new Map<string, MessageLoadState>()
   const pendingParts = new Map<string, Map<string, Set<string>>>()
   const orphanParts = new Map<string, Set<string>>()
@@ -191,6 +233,16 @@ export function createServerSession(client: OpencodeClient, options?: { retry?:
     at: {} as Record<string, number | undefined>,
   })
 
+  const indexLegacyMessage = (message: Message) => {
+    const current = data.session_message[message.sessionID] ?? []
+    if (current.some((item) => item.id === message.id)) return
+    setData(
+      "session_message",
+      message.sessionID,
+      reconcile([...current, ...legacyMessageSource([{ info: message, parts: [] }])]),
+    )
+  }
+
   const remember = (session: Session) => {
     setData("info", session.id, reconcile(session))
     infoSeen.delete(session.id)
@@ -200,7 +252,6 @@ export function createServerSession(client: OpencodeClient, options?: { retry?:
         ...pinned.keys(),
         ...requests.keys(),
         ...inflight.keys(),
-        ...inflightDiff.keys(),
         ...inflightTodo.keys(),
         ...messageLoads.keys(),
         ...optimistic.keys(),
@@ -242,27 +293,31 @@ export function createServerSession(client: OpencodeClient, options?: { retry?:
     const pending = requests.get(sessionID)
     if (pending) return pending
     const active = generation(sessionID)
-    const request = client.session.get({ sessionID }).then((result) => {
-      if (!result.data) throw sessionNotFoundError(sessionID)
-      if (generations.get(sessionID) !== active) return result.data
-      return remember(result.data)
+    const request = sessionApi
+      ? sessionApi.get({ sessionID }).then(normalizeSessionInfo)
+      : client.session.get({ sessionID }).then((result) => {
+          if (!result.data) throw sessionNotFoundError(sessionID)
+          return result.data
+        })
+    const resolved = request.then((result) => {
+      if (generations.get(sessionID) !== active) return result
+      return remember(result)
     })
-    requests.set(sessionID, request)
+    requests.set(sessionID, resolved)
     const cleanup = () => {
-      if (requests.get(sessionID) === request) requests.delete(sessionID)
+      if (requests.get(sessionID) === resolved) requests.delete(sessionID)
       if (
         generations.get(sessionID) === active &&
         !data.info[sessionID] &&
         !requests.has(sessionID) &&
         !messageLoads.has(sessionID) &&
         !inflight.has(sessionID) &&
-        !inflightDiff.has(sessionID) &&
         !inflightTodo.has(sessionID)
       )
         generations.delete(sessionID)
     }
-    void request.then(cleanup, cleanup)
-    return request
+    void resolved.then(cleanup, cleanup)
+    return resolved
   }
 
   const peekLineage = (sessionID: string) => {
@@ -419,9 +474,9 @@ export function createServerSession(client: OpencodeClient, options?: { retry?:
       clearOptimistic(sessionID)
       requests.delete(sessionID)
       inflight.delete(sessionID)
-      inflightDiff.delete(sessionID)
       inflightTodo.delete(sessionID)
       messageLoads.delete(sessionID)
+      v2.clear(sessionID)
       pendingParts.delete(sessionID)
       orphanParts.delete(sessionID)
       removedMessages.delete(sessionID)
@@ -449,7 +504,6 @@ export function createServerSession(client: OpencodeClient, options?: { retry?:
       ...pinned.keys(),
       ...requests.keys(),
       ...inflight.keys(),
-      ...inflightDiff.keys(),
       ...inflightTodo.keys(),
       ...messageLoads.keys(),
       ...optimistic.keys(),
@@ -470,6 +524,25 @@ export function createServerSession(client: OpencodeClient, options?: { retry?:
     )
 
   const fetchMessages = async (sessionID: string, limit: number, before?: string, onAttempt?: () => void) => {
+    if (messageApi && (await options?.protocol) !== "v1") {
+      const response = await (options?.retry ?? retry)(() => {
+        onAttempt?.()
+        return messageApi.list(before ? { sessionID, limit, cursor: before } : { sessionID, limit, order: "desc" })
+      })
+      const source = [...response.data].reverse()
+      const normalized = normalizeSessionMessages(sessionID, source)
+      return {
+        session: normalized.messages.sort((a, b) => cmp(a.id, b.id)),
+        part: [...normalized.parts.entries()]
+          .map(([id, part]) => ({ id, part: part.sort((a, b) => cmp(a.id, b.id)) }))
+          .sort((a, b) => cmp(a.id, b.id)),
+        source,
+        sourceMode: before ? ("older" as const) : ("latest" as const),
+        projectSource: true,
+        cursor: response.cursor.next ?? undefined,
+        complete: response.data.length === 0,
+      }
+    }
     const response = await (options?.retry ?? retry)(() => {
       onAttempt?.()
       return client.session.messages({ sessionID, limit, before })
@@ -481,12 +554,24 @@ export function createServerSession(client: OpencodeClient, options?: { retry?:
         id: item.info.id,
         part: item.parts.filter((part) => !!part?.id).sort((a, b) => cmp(a.id, b.id)),
       })),
+      source: legacyMessageSource(items),
+      sourceMode: before ? ("older" as const) : ("latest" as const),
       cursor: response.response.headers.get("x-next-cursor") ?? undefined,
       complete: !response.response.headers.get("x-next-cursor"),
     }
   }
 
   const fetchMessage = async (sessionID: string, messageID: string, onAttempt?: () => void) => {
+    if (sessionApi && (await options?.protocol) !== "v1") {
+      const response = await (options?.retry ?? retry)(() => {
+        onAttempt?.()
+        return sessionApi.message({ sessionID, messageID })
+      })
+      const normalized = normalizeSessionMessages(sessionID, [response])
+      const message = normalized.messages[0]
+      if (!message) throw new Error(`Message not found: ${messageID}`)
+      return { message, parts: normalized.parts.get(messageID) ?? [] }
+    }
     const response = await (options?.retry ?? retry)(() => {
       onAttempt?.()
       return client.session.message({ sessionID, messageID })
@@ -571,7 +656,31 @@ export function createServerSession(client: OpencodeClient, options?: { retry?:
     preserveUnfetched: boolean | ((message: Message) => boolean),
     cleanupOrphans: boolean,
   ) => {
-    const merged = mergeOptimisticPage(page, [...(optimistic.get(sessionID)?.values() ?? [])])
+    const source = page.source
+      ? (() => {
+          const incoming = new Map(page.source.map((message) => [message.id, message]))
+          const existing = data.session_message[sessionID] ?? []
+          const current = existing.filter((message) => !incoming.has(message.id))
+          const live = new Map(existing.map((message) => [message.id, message]))
+          return (page.sourceMode === "older" ? [...page.source, ...current] : [...current, ...page.source]).map(
+            (message) => (load?.touchedSource.has(message.id) ? (live.get(message.id) ?? message) : message),
+          )
+        })()
+      : undefined
+    const projected =
+      page.projectSource && source
+        ? (() => {
+            const normalized = normalizeSessionMessages(sessionID, source)
+            return {
+              ...page,
+              session: normalized.messages.sort((a, b) => cmp(a.id, b.id)),
+              part: [...normalized.parts.entries()]
+                .map(([id, part]) => ({ id, part: part.sort((a, b) => cmp(a.id, b.id)) }))
+                .sort((a, b) => cmp(a.id, b.id)),
+            }
+          })()
+        : page
+    const merged = mergeOptimisticPage(projected, [...(optimistic.get(sessionID)?.values() ?? [])])
     merged.observed.forEach((item) => {
       if (!load?.clearedMessageParts.has(item.messageID)) confirmOptimistic(sessionID, item.messageID, item.parts)
     })
@@ -583,6 +692,7 @@ export function createServerSession(client: OpencodeClient, options?: { retry?:
       preserveUnfetched,
     })
     batch(() => {
+      if (source) setData("session_message", sessionID, reconcile(source))
       const messageIDs = replaceMessages(sessionID, messages)
       replaceParts(sessionID, merged.part, messageIDs, load)
       const orphans = orphanParts.get(sessionID)
@@ -613,6 +723,7 @@ export function createServerSession(client: OpencodeClient, options?: { retry?:
       optimisticParts: new Map(),
       orphanParents: new Set(),
       clearedMessageParts: new Set(),
+      touchedSource: new Set(),
     }
     messageLoads.set(sessionID, load)
     setMeta("loading", sessionID, true)
@@ -747,6 +858,109 @@ export function createServerSession(client: OpencodeClient, options?: { retry?:
       return properties.part.sessionID
   }
 
+  const projectV2 = (reduction: V2SessionReduction) => {
+    reduction.touched.forEach((messageID) => messageLoads.get(reduction.sessionID)?.touchedSource.add(messageID))
+    setData("session_message", reduction.sessionID, reconcile(reduction.messages))
+    if (reduction.touched.length === 0) return
+
+    const touched = new Set(reduction.touched)
+    let parentID: string | undefined
+    for (const message of reduction.messages) {
+      if (message.type === "user" || (message.type === "synthetic" && message.description?.trim()))
+        parentID = message.id
+      if (message.type === "shell") {
+        if (touched.has(message.id)) touched.add(`${message.id}:assistant`)
+        parentID = undefined
+      }
+      if (message.type === "assistant" && touched.has(message.id) && parentID) touched.add(parentID)
+      if (message.type === "compaction" && touched.has(message.id) && parentID) touched.add(parentID)
+    }
+
+    const normalized = normalizeSessionMessages(reduction.sessionID, reduction.messages)
+    batch(() => {
+      for (const message of normalized.messages) {
+        if (!touched.has(message.id)) continue
+        apply({ type: "message.updated", properties: { sessionID: reduction.sessionID, info: message } })
+      }
+      for (const messageID of touched) {
+        const next = normalized.parts.get(messageID) ?? []
+        const nextIDs = new Set(next.map((part) => part.id))
+        for (const part of next) {
+          apply({ type: "message.part.updated", properties: { sessionID: reduction.sessionID, part } })
+        }
+        for (const part of data.part[messageID] ?? []) {
+          if (nextIDs.has(part.id)) continue
+          apply({
+            type: "message.part.removed",
+            properties: { sessionID: reduction.sessionID, messageID, partID: part.id },
+          })
+        }
+      }
+    })
+  }
+
+  const hydrateV2Message = (sessionID: string, messageID: string) => {
+    if (!sessionApi) return
+    void sessionApi
+      .message({ sessionID, messageID })
+      .then((message) => {
+        const current = data.session_message[sessionID] ?? []
+        const messages = [...current.filter((item) => item.id !== message.id), message].sort((a, b) => cmp(a.id, b.id))
+        projectV2({ sessionID, messages, touched: [message.id] })
+      })
+      .catch(() => {})
+  }
+
+  const applyV2 = (event: OpenCodeEvent) => {
+    if (!("data" in event) || !("sessionID" in event.data) || typeof event.data.sessionID !== "string") return
+    const sessionID = event.data.sessionID
+    const reduction = v2.reduce(data.session_message[sessionID] ?? [], event)
+    if (reduction) {
+      projectV2(reduction)
+      if (reduction.missing) hydrateV2Message(sessionID, reduction.missing)
+    }
+
+    const info = data.info[sessionID]
+    if (event.type === "session.renamed" && info)
+      remember({ ...info, title: event.data.title, time: { ...info.time, updated: event.created } })
+    if (event.type === "session.moved" && info)
+      remember({
+        ...info,
+        projectID: event.data.projectID ?? info.projectID,
+        workspaceID: event.data.location.workspaceID,
+        directory: event.data.location.directory,
+        path: event.data.subpath,
+        time: { ...info.time, updated: event.created },
+      })
+    if (event.type === "session.usage.updated" && info)
+      remember({ ...info, cost: event.data.cost, tokens: event.data.tokens })
+    if (event.type === "session.archived") {
+      if (info) remember({ ...info, time: { ...info.time, archived: event.created, updated: event.created } })
+      evict([sessionID])
+    }
+    if (event.type === "session.execution.started") setData("session_status", sessionID, { type: "busy" })
+    if (
+      event.type === "session.execution.succeeded" ||
+      event.type === "session.execution.failed" ||
+      event.type === "session.execution.interrupted"
+    )
+      setData("session_status", sessionID, { type: "idle" })
+    if (event.type === "session.retry.scheduled")
+      setData("session_status", sessionID, {
+        type: "retry",
+        attempt: event.data.attempt,
+        message: event.data.error.message,
+        next: event.data.at,
+      })
+    if (event.type === "session.forked") void resolve(sessionID, { force: true }).catch(() => {})
+    if (
+      event.type === "session.revert.staged" ||
+      event.type === "session.revert.cleared" ||
+      event.type === "session.revert.committed"
+    )
+      void resolve(sessionID, { force: true }).catch(() => {})
+  }
+
   const apply = (event: { type: string; properties?: unknown }) => {
     const eventID = eventSessionID(event)
     if (eventID) {
@@ -770,7 +984,9 @@ export function createServerSession(client: OpencodeClient, options?: { retry?:
         return
       }
       case "session.deleted": {
-        const sessionID = (event.properties as { info: Session }).info.id
+        const properties = event.properties as { sessionID?: string; info?: Session }
+        const sessionID = properties.info?.id ?? properties.sessionID
+        if (!sessionID) return
         infoSeen.delete(sessionID)
         setData(
           "info",
@@ -779,11 +995,6 @@ export function createServerSession(client: OpencodeClient, options?: { retry?:
         evict([sessionID])
         return
       }
-      case "session.diff": {
-        const props = event.properties as { sessionID: string; diff: SnapshotFileDiff[] }
-        setData("session_diff", props.sessionID, reconcile(cleanDiffs(props.diff), { key: "file" }))
-        return
-      }
       case "todo.updated": {
         const props = event.properties as { sessionID: string; todos: Todo[] }
         setData("todo", props.sessionID, reconcile(props.todos, { key: "id" }))
@@ -796,6 +1007,7 @@ export function createServerSession(client: OpencodeClient, options?: { retry?:
       }
       case "message.updated": {
         const info = cleanMessage((event.properties as { info: Message }).info)
+        indexLegacyMessage(info)
         const load = messageLoads.get(info.sessionID)
         load?.touchedMessages.add(info.id)
         load?.removedMessages.delete(info.id)
@@ -828,6 +1040,9 @@ export function createServerSession(client: OpencodeClient, options?: { retry?:
       }
       case "message.removed": {
         const props = event.properties as { sessionID: string; messageID: string }
+        setData("session_message", props.sessionID, (messages) =>
+          messages?.filter((message) => message.id !== props.messageID),
+        )
         const load = messageLoads.get(props.sessionID)
         load?.touchedMessages.add(props.messageID)
         load?.removedMessages.add(props.messageID)
@@ -1140,23 +1355,16 @@ export function createServerSession(client: OpencodeClient, options?: { retry?:
         setData(produce((draft) => deleteMessageParts(draft, input.messageID)))
       },
     },
-    diff(sessionID: string, options?: { force?: boolean }) {
+    async todo(sessionID: string, request?: { force?: boolean }) {
       touch(sessionID)
-      if (data.session_diff[sessionID] !== undefined && !options?.force) return Promise.resolve()
-      return runInflight(inflightDiff, sessionID, () => {
-        const active = generation(sessionID)
-        return retry(() => client.session.diff({ sessionID })).then((result) => {
-          if (generations.get(sessionID) !== active) return
-          setData("session_diff", sessionID, reconcile(cleanDiffs(result.data), { key: "file" }))
-        })
-      })
-    },
-    todo(sessionID: string, options?: { force?: boolean }) {
-      touch(sessionID)
-      if (data.todo[sessionID] !== undefined && !options?.force) return Promise.resolve()
+      if (data.todo[sessionID] !== undefined && !request?.force) return
+      if ((await options?.protocol) === "v2") {
+        setData("todo", sessionID, [])
+        return
+      }
       return runInflight(inflightTodo, sessionID, () => {
         const active = generation(sessionID)
-        return retry(() => client.session.todo({ sessionID })).then((result) => {
+        return (options?.retry ?? retry)(() => client.session.todo({ sessionID })).then((result) => {
           if (generations.get(sessionID) !== active) return
           setData("todo", sessionID, reconcile(result.data ?? [], { key: "id" }))
         })
@@ -1190,6 +1398,7 @@ export function createServerSession(client: OpencodeClient, options?: { retry?:
       if (count && count > 1) pinned.set(sessionID, count - 1)
     },
     apply,
+    applyV2,
   }
 }
 

packages/app/src/context/server-sync.test.ts

@@ -1,6 +1,108 @@
 import { describe, expect, test } from "bun:test"
+import type { OpencodeClient } from "@opencode-ai/sdk/v2/client"
+import type {
+  McpApi,
+  McpListInput,
+  McpResourceCatalogInput,
+  SessionApi,
+  SessionInfo,
+  SessionListInput,
+} from "@opencode-ai/client/promise"
+import { QueryClient } from "@tanstack/solid-query"
 import { canDisposeDirectory, pickDirectoriesToEvict } from "./global-sync/eviction"
-import { estimateRootSessionTotal, loadRootSessionsWithFallback } from "./global-sync/session-load"
+import { estimateRootSessionTotal, loadRootSessions } from "./global-sync/session-load"
+import {
+  loadActiveSessionsQuery,
+  loadMcpQuery,
+  loadMcpResourcesQuery,
+  seedActiveSessionStatuses,
+} from "./server-sync"
+import { ServerScope } from "@/utils/server-scope"
+import { createServerSession } from "./server-session"
+
+describe("MCP queries", () => {
+  test("loads current servers for the requested location", async () => {
+    const calls: unknown[] = []
+    const queryClient = new QueryClient()
+    const result = await queryClient.fetchQuery(
+      loadMcpQuery(ServerScope.local, "/project", {
+        list: async (input: McpListInput = {}) => {
+          calls.push(input)
+          return {
+            location: { directory: "/project", project: { id: "project", directory: "/project" } },
+            data: [
+              { name: "docs", status: { status: "connected" } },
+              { name: "search", status: { status: "pending" } },
+            ],
+          }
+        },
+      } as unknown as McpApi),
+    )
+
+    expect(calls).toEqual([{ location: { directory: "/project" } }])
+    expect(result).toEqual({ docs: { status: "connected" }, search: { status: "pending" } })
+  })
+
+  test("loads and keys the current resource catalog", async () => {
+    const calls: unknown[] = []
+    const queryClient = new QueryClient()
+    const result = await queryClient.fetchQuery(
+      loadMcpResourcesQuery(ServerScope.local, "/project", {
+        resource: {
+          catalog: async (input: McpResourceCatalogInput = {}) => {
+            calls.push(input)
+            return {
+              location: { directory: "/project", project: { id: "project", directory: "/project" } },
+              data: {
+                resources: [{ server: "docs", name: "Guide", uri: "docs://guide" }],
+                templates: [],
+              },
+            }
+          },
+        },
+      } as unknown as McpApi),
+    )
+
+    expect(calls).toEqual([{ location: { directory: "/project" } }])
+    expect(result).toEqual({ "docs:docs://guide": { server: "docs", name: "Guide", uri: "docs://guide" } })
+  })
+})
+
+describe("active session query", () => {
+  test("loads active sessions once per server cache", async () => {
+    let calls = 0
+    const queryClient = new QueryClient()
+    const options = loadActiveSessionsQuery(ServerScope.local, {
+      active: async () => {
+        calls++
+        return { ses_running: { type: "running" } }
+      },
+    })
+
+    expect(await queryClient.fetchQuery(options)).toEqual({ ses_running: { type: "running" } })
+    expect(await queryClient.fetchQuery(options)).toEqual({ ses_running: { type: "running" } })
+    expect(calls).toBe(1)
+    expect([...options.queryKey]).toEqual([ServerScope.local, "activeSessions"])
+  })
+
+  test("does not overwrite statuses already written by events", () => {
+    const session = createServerSession({} as OpencodeClient)
+    session.set("session_status", "ses_retry", { type: "retry", attempt: 2, message: "retrying", next: 10 })
+
+    seedActiveSessionStatuses(session, {
+      ses_running: { type: "running" },
+      ses_retry: { type: "running" },
+    })
+
+    expect(session.data.session_status.ses_running).toEqual({ type: "busy" })
+    expect(session.data.session_status.ses_retry).toEqual({
+      type: "retry",
+      attempt: 2,
+      message: "retrying",
+      next: 10,
+    })
+  })
+})
 
 describe("pickDirectoriesToEvict", () => {
   test("keeps pinned stores and evicts idle stores", () => {
@@ -23,46 +125,57 @@ describe("pickDirectoriesToEvict", () => {
   })
 })
 
-describe("loadRootSessionsWithFallback", () => {
-  test("uses limited roots query when supported", async () => {
-    const calls: Array<{ directory: string; roots: true; limit?: number }> = []
+describe("loadRootSessions", () => {
+  test("loads and normalizes a limited page of root sessions", async () => {
+    const calls: SessionListInput[] = []
 
-    const result = await loadRootSessionsWithFallback({
+    const result = await loadRootSessions({
+      api: {
+        list: async (query = {}) => {
+          calls.push(query)
+          return { data: [sessionInfo("session-1")], cursor: {} }
+        },
+      } satisfies Pick<SessionApi, "list">,
       directory: "dir",
       limit: 10,
-      list: async (query) => {
-        calls.push(query)
-        return { data: [] }
-      },
     })
 
-    expect(result.data).toEqual([])
+    expect(result.data).toEqual([
+      expect.objectContaining({ id: "session-1", directory: "dir", slug: "session-1", version: "" }),
+    ])
     expect(result.limited).toBe(true)
-    expect(calls).toEqual([{ directory: "dir", roots: true, limit: 10 }])
+    expect(calls).toEqual([{ directory: "dir", parentID: null, limit: 10, order: "desc" }])
   })
 
-  test("falls back to full roots query on limited-query failure", async () => {
-    const calls: Array<{ directory: string; roots: true; limit?: number }> = []
-
-    const result = await loadRootSessionsWithFallback({
-      directory: "dir",
-      limit: 25,
-      list: async (query) => {
-        calls.push(query)
-        if (query.limit) throw new Error("unsupported")
-        return { data: [] }
-      },
-    })
-
-    expect(result.data).toEqual([])
-    expect(result.limited).toBe(false)
-    expect(calls).toEqual([
-      { directory: "dir", roots: true, limit: 25 },
-      { directory: "dir", roots: true },
-    ])
+  test("propagates list failures", () => {
+    expect(
+      loadRootSessions({
+        api: {
+          list: async () => {
+            throw new Error("failed")
+          },
+        } satisfies Pick<SessionApi, "list">,
+        directory: "dir",
+        limit: 25,
+      }),
+    ).rejects.toThrow("failed")
   })
 })
 
+function sessionInfo(id: string) {
+  return {
+    id,
+    projectID: "project-1",
+    agent: "build",
+    model: { id: "model-1", providerID: "provider-1" },
+    cost: 0,
+    tokens: { input: 0, output: 0, reasoning: 0, cache: { read: 0, write: 0 } },
+    time: { created: 1, updated: 1 },
+    title: id,
+    location: { directory: "dir" },
+  } as SessionInfo
+}
+
 describe("estimateRootSessionTotal", () => {
   test("keeps exact total for full fetches", () => {
     expect(estimateRootSessionTotal({ count: 42, limit: 10, limited: false })).toBe(42)

packages/app/src/context/server-sync.tsx

@@ -1,10 +1,10 @@
 import type {
   Config,
-  McpResource,
   OpencodeClient,
   Path,
   Project,
   ProviderAuthResponse,
+  SessionStatus,
 } from "@opencode-ai/sdk/v2/client"
 import { showToast } from "@/utils/toast"
 import { getFilename } from "@opencode-ai/core/util/path"
@@ -18,6 +18,7 @@ import {
   bootstrapGlobal,
   clearProviderRev,
   loadAgentsQuery,
+  loadCommands,
   loadGlobalConfigQuery,
   loadPathQuery,
   loadProjectsQuery,
@@ -26,12 +27,13 @@ import {
 } from "./global-sync/bootstrap"
 import { createChildStoreManager } from "./global-sync/child-store"
 import { applyDirectoryEvent, applyGlobalEvent } from "./global-sync/event-reducer"
-import { estimateRootSessionTotal, loadRootSessionsWithFallback } from "./global-sync/session-load"
+import { estimateRootSessionTotal, loadRootSessions, loadRootSessionsV1 } from "./global-sync/session-load"
 import { trimSessions } from "./global-sync/session-trim"
 import type { ProjectMeta } from "./global-sync/types"
 import { SESSION_RECENT_LIMIT } from "./global-sync/types"
 import { formatServerError } from "@/utils/server-errors"
 import { queryOptions, useMutation, useQueries, useQuery, useQueryClient } from "@tanstack/solid-query"
+import type { SolidQueryOptions } from "@tanstack/solid-query"
 import { createRefreshQueue } from "./global-sync/queue"
 import { directoryKey } from "./global-sync/utils"
 import { PathKey } from "@/utils/path-key"
@@ -45,8 +47,18 @@ import { retry } from "@opencode-ai/core/util/retry"
 import type { ServerScope } from "@/utils/server-scope"
 import { createHomeSessionIndexCache } from "./global-sync/home-session-index"
 import { persisted } from "@/utils/persist"
+import type { ServerApi } from "@/utils/server"
+import type {
+  McpListInput,
+  McpListOutput,
+  McpResource,
+  McpResourceCatalogInput,
+  McpResourceCatalogOutput,
+  McpServer,
+  SessionActiveOutput,
+} from "@opencode-ai/client/promise"
 import { toggleMcp } from "./global-sync/mcp"
-import { createServerSession } from "./server-session"
+import { createServerSession, type ServerSession } from "./server-session"
 
 type GlobalStore = {
   ready: boolean
@@ -59,16 +71,76 @@ type GlobalStore = {
   reload: undefined | "pending" | "complete"
 }
 
-export const loadMcpQuery = (scope: ServerScope, directory: string, sdk: OpencodeClient) =>
-  queryOptions({
+type McpListApi = {
+  readonly list: (input?: McpListInput) => Promise<McpListOutput>
+}
+
+type McpResourceApi = {
+  readonly resource: {
+    readonly catalog: (input?: McpResourceCatalogInput) => Promise<McpResourceCatalogOutput>
+  }
+}
+
+type ApiQueryOptions<T, K extends readonly unknown[]> = SolidQueryOptions<T, Error, T, K> & {
+  initialData?: undefined
+  queryKey: K
+}
+
+type SessionActiveApi = {
+  readonly active: () => Promise<SessionActiveOutput>
+}
+
+export const loadMcpQuery = (
+  scope: ServerScope,
+  directory: string,
+  api: McpListApi,
+  legacy?: OpencodeClient,
+  protocol?: Promise<"v1" | "v2">,
+): ApiQueryOptions<Record<string, McpServer["status"]>, readonly [ServerScope, string, "mcp"]> =>
+  queryOptions<
+    Record<string, McpServer["status"]>,
+    Error,
+    Record<string, McpServer["status"]>,
+    readonly [ServerScope, string, "mcp"]
+  >({
     queryKey: [scope, directory, "mcp"] as const,
-    queryFn: () => sdk.mcp.status().then((r) => r.data ?? {}),
+    queryFn: async () => {
+      if ((await protocol) === "v1" && legacy) return (await legacy.mcp.status()).data ?? {}
+      return api
+        .list({ location: { directory } })
+        .then((result) => Object.fromEntries(result.data.map((server) => [server.name, server.status])))
+    },
   })
 
-export const loadMcpResourcesQuery = (scope: ServerScope, directory: string, sdk: OpencodeClient) =>
-  queryOptions<Record<string, McpResource>>({
+export const loadMcpResourcesQuery = (
+  scope: ServerScope,
+  directory: string,
+  api: McpResourceApi,
+  legacy?: OpencodeClient,
+  protocol?: Promise<"v1" | "v2">,
+): ApiQueryOptions<Record<string, McpResource>, readonly [ServerScope, string, "mcpResources"]> =>
+  queryOptions<
+    Record<string, McpResource>,
+    Error,
+    Record<string, McpResource>,
+    readonly [ServerScope, string, "mcpResources"]
+  >({
     queryKey: [scope, directory, "mcpResources"] as const,
-    queryFn: () => sdk.experimental.resource.list().then((r) => r.data ?? {}),
+    queryFn: async () => {
+      if ((await protocol) === "v1" && legacy) {
+        return Object.fromEntries(
+          Object.entries((await legacy.experimental.resource.list()).data ?? {}).map(([key, resource]) => [
+            key,
+            { ...resource, server: resource.client },
+          ]),
+        )
+      }
+      return api.resource
+        .catalog({ location: { directory } })
+        .then((result) =>
+          Object.fromEntries(result.data.resources.map((resource) => [`${resource.server}:${resource.uri}`, resource])),
+        )
+    },
     placeholderData: {},
   })
 
@@ -78,22 +150,51 @@ export const loadLspQuery = (scope: ServerScope, directory: string, sdk: Opencod
     queryFn: () => sdk.lsp.status().then((r) => r.data ?? []),
   })
 
+export const loadActiveSessionsQuery = (
+  scope: ServerScope,
+  api: SessionActiveApi,
+): ApiQueryOptions<SessionActiveOutput, readonly [ServerScope, "activeSessions"]> =>
+  queryOptions<SessionActiveOutput, Error, SessionActiveOutput, readonly [ServerScope, "activeSessions"]>({
+    queryKey: [scope, "activeSessions"] as const,
+    queryFn: () => api.active(),
+    enabled: false,
+    staleTime: Number.POSITIVE_INFINITY,
+    gcTime: Number.POSITIVE_INFINITY,
+    refetchOnMount: false,
+    refetchOnReconnect: false,
+    refetchOnWindowFocus: false,
+  })
+
+export function seedActiveSessionStatuses(
+  session: Pick<ServerSession, "data" | "set">,
+  active: SessionActiveOutput | Record<string, SessionStatus>,
+) {
+  for (const sessionID of Object.keys(active)) {
+    if (session.data.session_status[sessionID] !== undefined) continue
+    const status = active[sessionID]
+    session.set("session_status", sessionID, status?.type === "running" ? { type: "busy" } : status)
+  }
+}
+
 function makeQueryOptionsApi(
   scope: ServerScope,
   serverSDK: () => OpencodeClient,
+  serverAPI: ServerApi,
   sdkFor: (dir: PathKey) => OpencodeClient,
+  protocol: Promise<"v1" | "v2">,
 ) {
   return {
     globalConfig: () => loadGlobalConfigQuery(scope, serverSDK()),
-    projects: () => loadProjectsQuery(scope, serverSDK()),
+    projects: () => loadProjectsQuery(scope, serverAPI.project),
     providers: (directory: PathKey | null) =>
-      loadProvidersQuery(scope, directory, directory === null ? serverSDK() : sdkFor(directory)),
-    path: (directory: PathKey | null) =>
-      loadPathQuery(scope, directory, directory === null ? serverSDK() : sdkFor(directory)),
-    agents: (directory: PathKey) => loadAgentsQuery(scope, directory, sdkFor(directory)),
-    references: (directory: PathKey) => loadReferencesQuery(scope, directory, sdkFor(directory)),
-    mcp: (directory: PathKey) => loadMcpQuery(scope, directory, sdkFor(directory)),
-    mcpResources: (directory: PathKey) => loadMcpResourcesQuery(scope, directory, sdkFor(directory)),
+      loadProvidersQuery(scope, directory, serverAPI, directory ? sdkFor(directory) : serverSDK(), protocol),
+    path: (directory: PathKey | null) => loadPathQuery(scope, directory, serverAPI.path),
+    agents: (directory: PathKey) => loadAgentsQuery(scope, directory, serverAPI.agent, sdkFor(directory), protocol),
+    references: (directory: PathKey) =>
+      loadReferencesQuery(scope, directory, serverAPI.reference, sdkFor(directory), protocol),
+    mcp: (directory: PathKey) => loadMcpQuery(scope, directory, serverAPI.mcp, sdkFor(directory), protocol),
+    mcpResources: (directory: PathKey) =>
+      loadMcpResourcesQuery(scope, directory, serverAPI.mcp, sdkFor(directory), protocol),
     lsp: (directory: PathKey) => loadLspQuery(scope, directory, sdkFor(directory)),
     sessions: (directory: PathKey) => ({ queryKey: [scope, directory, "loadSessions"] as const }),
   }
@@ -122,11 +223,44 @@ export function createServerSyncContextInner(serverSDK: ServerSDK) {
     return sdk
   }
 
-  const queryOptionsApi = makeQueryOptionsApi(serverSDK.scope, () => serverSDK.client, sdkFor)
+  const session = createServerSession(serverSDK.client, serverSDK.api.session, serverSDK.api.message, {
+    protocol: serverSDK.protocol,
+  })
+  const queryOptionsApi = makeQueryOptionsApi(
+    serverSDK.scope,
+    () => serverSDK.client,
+    serverSDK.api,
+    sdkFor,
+    serverSDK.protocol,
+  )
 
   const [configQuery, providerQuery, pathQuery] = useQueries(() => ({
     queries: [queryOptionsApi.globalConfig(), queryOptionsApi.providers(null), queryOptionsApi.path(null)],
   }))
+  const activeSessionsQuery = useQuery(() =>
+    loadActiveSessionsQuery(serverSDK.scope, {
+      active: async () => {
+        if ((await serverSDK.protocol) === "v1") {
+          const statuses = (await serverSDK.client.session.status()).data ?? {}
+          for (const [sessionID, status] of Object.entries(statuses)) {
+            session.set("session_status", sessionID, reconcile(status))
+            void session.resolve(sessionID).catch(() => undefined)
+          }
+          return Object.fromEntries(
+            Object.entries(statuses).flatMap(([sessionID, status]) =>
+              status.type === "idle" ? [] : [[sessionID, { type: "running" as const }]],
+            ),
+          )
+        }
+        const active = await serverSDK.api.session.active()
+        seedActiveSessionStatuses(session, active)
+        for (const sessionID of Object.keys(active)) {
+          void session.resolve(sessionID).catch(() => undefined)
+        }
+        return active
+      },
+    }),
+  )
 
   const [globalStore, setGlobalStore] = createStore<GlobalStore>({
     get ready() {
@@ -183,6 +317,8 @@ export function createServerSyncContextInner(serverSDK: ServerSDK) {
     queryFn: async () => {
       await bootstrapGlobal({
         serverSDK: serverSDK.client,
+        serverAPI: serverSDK.api,
+        protocol: serverSDK.protocol,
         scope: serverSDK.scope,
         requestFailedTitle: language.t("common.requestFailed"),
         translate: language.t,
@@ -212,8 +348,6 @@ export function createServerSyncContextInner(serverSDK: ServerSDK) {
     bootstrapInstance,
   })
 
-  const session = createServerSession(serverSDK.client)
-
   const children = createChildStoreManager({
     owner,
     scope: serverSDK.scope,
@@ -224,17 +358,15 @@ export function createServerSyncContextInner(serverSDK: ServerSDK) {
       void bootstrapInstance(directory)
     },
     onMcp: (directory, setStore) => {
-      void retry(() =>
-        sdkFor(directory)
-          .command.list()
-          .then((x) => setStore("command", x.data ?? [])),
-      ).catch((err) => {
-        showToast({
-          variant: "error",
-          title: language.t("toast.project.reloadFailed.title", { project: getFilename(directory) }),
-          description: formatServerError(err, language.t),
+      void loadCommands(directory, serverSDK.api.command, sdkFor(directory), serverSDK.protocol)
+        .then((commands) => setStore("command", commands))
+        .catch((err) => {
+          showToast({
+            variant: "error",
+            title: language.t("toast.project.reloadFailed.title", { project: getFilename(directory) }),
+            description: formatServerError(err, language.t),
+          })
         })
-      })
     },
     onDispose: (directory) => {
       const key = directoryKey(directory)
@@ -279,11 +411,12 @@ export function createServerSyncContextInner(serverSDK: ServerSDK) {
       .fetchQuery({
         ...queryOptionsApi.sessions(key),
         queryFn: () =>
-          loadRootSessionsWithFallback({
-            directory,
-            limit,
-            list: (query) => serverSDK.client.session.list(query),
-          })
+          serverSDK.protocol
+            .then((protocol) =>
+              protocol === "v1"
+                ? loadRootSessionsV1({ client: sdkFor(directory), directory, limit })
+                : loadRootSessions({ api: serverSDK.api.session, directory, limit }),
+            )
             .then((x) => {
               const nonArchived = (x.data ?? [])
                 .filter((s) => !!s?.id)
@@ -353,6 +486,7 @@ export function createServerSyncContextInner(serverSDK: ServerSDK) {
           provider: globalStore.provider,
         },
         sdk,
+        api: serverSDK.api,
         store: child[0],
         setStore: child[1],
         vcsCache: cache,
@@ -360,6 +494,7 @@ export function createServerSyncContextInner(serverSDK: ServerSDK) {
         translate: language.t,
         queryClient,
         session,
+        protocol: serverSDK.protocol,
       })
     })
 
@@ -371,12 +506,31 @@ export function createServerSyncContextInner(serverSDK: ServerSDK) {
     return promise
   }
 
+  const indexSession = (info: Parameters<typeof session.remember>[0]) => {
+    const key = directoryKey(info.directory)
+    const existing = children.children[key]
+    if (!existing) return
+    applyDirectoryEvent({
+      event: { type: "session.created", properties: { info } },
+      directory: key,
+      store: existing[0],
+      setStore: existing[1],
+      push: queue.push,
+      retainedLimit: sessionMeta.get(key)?.limit,
+      sessionContent: false,
+      permission: session.data.permission,
+      loadLsp() {},
+    })
+  }
+
   const unsub = serverSDK.event.listen((e) => {
     const directory = e.name
     const key = directoryKey(directory)
     const event = e.details
+    const eventType: string = event.type
     const recent = bootingRoot || Date.now() - bootedAt < 1500
 
+    if (event.current) session.applyV2(event.current)
     session.apply(event)
     if (event.type === "session.created" || event.type === "session.updated" || event.type === "session.deleted") {
       homeSessions.apply(event)
@@ -384,6 +538,8 @@ export function createServerSyncContextInner(serverSDK: ServerSDK) {
     homeSessions.refresh(event.type)
 
     if (directory === "global") {
+      if (eventType === "server.connected" && activeSessionsQuery.data === undefined && !activeSessionsQuery.isFetching)
+        void activeSessionsQuery.refetch()
       applyGlobalEvent({
         event,
         project: globalStore.project,
@@ -393,7 +549,14 @@ export function createServerSyncContextInner(serverSDK: ServerSDK) {
         },
         setGlobalProject: setProjects,
       })
-      if (event.type === "server.connected" || event.type === "global.disposed") {
+      if (
+        eventType === "config.updated" ||
+        eventType === "catalog.updated" ||
+        eventType === "agent.updated" ||
+        eventType === "project.directories.updated"
+      )
+        bootstrap.refetch()
+      if (eventType === "server.connected" || eventType === "global.disposed") {
         if (recent) return
         for (const directory of Object.keys(children.children)) {
           if (!children.active(directory)) continue
@@ -403,9 +566,30 @@ export function createServerSyncContextInner(serverSDK: ServerSDK) {
       return
     }
 
+    if (event.current?.type === "session.moved") {
+      const info = session.get(event.current.data.sessionID)
+      if (info) indexSession(info)
+    }
+    if (event.current?.type === "session.forked")
+      void session
+        .resolve(event.current.data.sessionID, { force: true })
+        .then(indexSession)
+        .catch(() => {})
+
     const existing = children.children[key]
     if (!existing) return
     children.mark(key)
+    if (
+      event.current?.type === "session.moved" ||
+      event.current?.type === "session.archived" ||
+      event.current?.type === "session.forked" ||
+      eventType === "command.updated" ||
+      eventType === "config.updated" ||
+      eventType === "agent.updated"
+    )
+      queue.push(key)
+    if (eventType === "mcp.status.changed") void queryClient.invalidateQueries(queryOptionsApi.mcp(key))
+    if (eventType === "mcp.resources.changed") void queryClient.invalidateQueries(queryOptionsApi.mcpResources(key))
     const [store, setStore] = existing
     applyDirectoryEvent({
       event,
@@ -502,14 +686,23 @@ export function createServerSyncContextInner(serverSDK: ServerSDK) {
       toggle: async (directory: string, name: string) => {
         const key = directoryKey(directory)
         const sdk = sdkFor(key)
-        const status = children.child(key, { bootstrap: false })[0].mcp[name].status
+        const status = children.child(key, { bootstrap: false })[0].mcp[name]?.status
+        if (!status) return
         await toggleMcp({
           status,
           connect: async () => {
-            await sdk.mcp.connect({ name })
+            if ((await serverSDK.protocol) === "v1") {
+              await sdk.mcp.connect({ name })
+              return
+            }
+            await serverSDK.api.mcp.connect({ server: name, location: { directory: key } })
           },
           disconnect: async () => {
-            await sdk.mcp.disconnect({ name })
+            if ((await serverSDK.protocol) === "v1") {
+              await sdk.mcp.disconnect({ name })
+              return
+            }
+            await serverSDK.api.mcp.disconnect({ server: name, location: { directory: key } })
           },
           authenticate: async () => {
             await sdk.mcp.auth.authenticate({ name })

packages/app/src/pages/session.tsx

@@ -532,7 +532,6 @@ export default function Page() {
 
   const info = createMemo(() => (params.id ? sync().session.get(params.id) : undefined))
   const isChildSession = createMemo(() => !!info()?.parentID)
-  const diffs = createMemo(() => (params.id ? list(sync().data.session_diff[params.id]) : []))
   const canReview = createMemo(() => !!sync().project)
   const reviewTab = createMemo(() => isDesktop())
   const tabState = createSessionTabs({
@@ -690,8 +689,8 @@ export default function Page() {
       queryFn: mode
         ? () =>
             sdk()
-              .client.vcs.diff({ mode })
-              .then((result) => list(result.data))
+              .api.vcs.diff({ location: { directory: sdk().directory }, mode: mode === "git" ? "working" : mode })
+              .then((result) => result.data)
               .catch((error) => {
                 console.debug("[session-review] failed to load vcs diff", { mode, error })
                 return []
@@ -738,8 +737,12 @@ export default function Page() {
           retry: 2,
           queryFn: () =>
             sdk()
-              .client.vcs.diff({ mode, directory: scope, context })
-              .then((result) => result.data ?? []),
+              .api.vcs.diff({
+                location: { directory: scope },
+                mode: mode === "git" ? "working" : mode,
+                context,
+              })
+              .then((result) => result.data),
         })
         .then((diffs) => diffs.find((diff) => diff.file === file))
 
@@ -946,10 +949,11 @@ export default function Page() {
   )
 
   const stopVcs = sdk().event.listen((evt) => {
-    if (evt.details.type !== "file.watcher.updated") return
+    const details = evt.details as { type: string; properties?: unknown }
+    if (details.type !== "file.watcher.updated" && details.type !== "filesystem.changed") return
     const props =
-      typeof evt.details.properties === "object" && evt.details.properties
-        ? (evt.details.properties as Record<string, unknown>)
+      typeof details.properties === "object" && details.properties
+        ? (details.properties as Record<string, unknown>)
         : undefined
     const file = typeof props?.file === "string" ? props.file : undefined
     if (!file || file.startsWith(".git/")) return
@@ -1464,44 +1468,6 @@ export default function Page() {
     requestAnimationFrame(() => attempt(0))
   })
 
-  createEffect(() => {
-    const id = params.id
-    if (!id) return
-
-    if (!wantsReview()) return
-    if (sync().data.session_diff[id] !== undefined) return
-    if (sync().status === "loading") return
-
-    void sync().session.diff(id)
-  })
-
-  createEffect(
-    on(
-      () => [sessionKey(), wantsReview()] as const,
-      ([key, wants]) => {
-        if (diffFrame !== undefined) cancelAnimationFrame(diffFrame)
-        if (diffTimer !== undefined) window.clearTimeout(diffTimer)
-        diffFrame = undefined
-        diffTimer = undefined
-        if (!wants) return
-
-        const id = params.id
-        if (!id) return
-        if (!untrack(() => sync().data.session_diff[id] !== undefined)) return
-
-        diffFrame = requestAnimationFrame(() => {
-          diffFrame = undefined
-          diffTimer = window.setTimeout(() => {
-            diffTimer = undefined
-            if (sessionKey() !== key) return
-            void sync().session.diff(id, { force: true })
-          }, 0)
-        })
-      },
-      { defer: true },
-    ),
-  )
-
   let treeDir: string | undefined
   createEffect(() => {
     const dir = sdk().directory
@@ -1757,7 +1723,7 @@ export default function Page() {
       setFollowup("failed", input.sessionID, undefined)
 
       const ok = await sendFollowupDraft({
-        client: sdk().client,
+        api: sdk().api.session,
         sync: sync(),
         serverSync: serverSync(),
         draft: item,
@@ -1853,13 +1819,13 @@ export default function Page() {
   const halt = (sessionID: string) =>
     busy(sessionID)
       ? sdk()
-          .client.session.abort({ sessionID })
+          .api.session.interrupt({ sessionID })
           .catch(() => {})
       : Promise.resolve()
 
   const revertMutation = useMutation(() => ({
     mutationFn: async (input: { sessionID: string; messageID: string }) => {
-      const client = sdk().client
+      const session = sdk().api.session
       const target = sync()
       const last = target.session.get(input.sessionID)?.revert
       const value = draft(input.messageID)
@@ -1869,10 +1835,8 @@ export default function Page() {
           roll(input.sessionID, { messageID: input.messageID }, target)
           prompt.set(value)
         },
-        request: () => halt(input.sessionID).then(() => client.session.revert(input)),
-        complete: (result) => {
-          if (result.data) merge(result.data, target)
-        },
+        request: () => halt(input.sessionID).then(() => session.revert.stage(input)),
+        complete: () => undefined,
         rollback: () => roll(input.sessionID, last, target),
         fail,
       })
@@ -1884,7 +1848,7 @@ export default function Page() {
       const sessionID = params.id
       if (!sessionID) return
 
-      const client = sdk().client
+      const session = sdk().api.session
       const target = sync()
       const next = userMessages().find((item) => item.id > id)
       const last = target.session.get(sessionID)?.revert
@@ -1901,11 +1865,9 @@ export default function Page() {
         },
         request: () =>
           !next
-            ? halt(sessionID).then(() => client.session.unrevert({ sessionID }))
-            : halt(sessionID).then(() => client.session.revert({ sessionID, messageID: next.id })),
-        complete: (result) => {
-          if (result.data) merge(result.data, target)
-        },
+            ? halt(sessionID).then(() => session.revert.clear({ sessionID }))
+            : halt(sessionID).then(() => session.revert.stage({ sessionID, messageID: next.id }).then(() => undefined)),
+        complete: () => undefined,
         rollback: () => roll(sessionID, last, target),
         fail,
       })

packages/app/src/pages/session/timeline/message-timeline.tsx

@@ -283,6 +283,14 @@ export function MessageTimeline(props: {
     return sync().data.session_status[id] ?? idle
   })
   const sessionMessages = createMemo(() => (sessionID() ? (sync().data.message[sessionID()!] ?? []) : []))
+  const projectedMessages = createMemo(() => {
+    const id = sessionID()
+    if (!id) return []
+    const visible = new Set(props.userMessages.map((message) => message.id))
+    const boundary = sessionMessages().find((message) => message.role === "user" && !visible.has(message.id))?.id
+    const messages = sync().data.session_message[id] ?? []
+    return boundary ? messages.filter((message) => message.id < boundary) : messages
+  })
   const info = createMemo(() => {
     const id = sessionID()
     if (!id) return
@@ -324,7 +332,7 @@ export function MessageTimeline(props: {
   const showHeader = createMemo(() => !!(titleValue() || parentID()))
   const projection = createTimelineProjection({
     messages: sessionMessages,
-    userMessages: () => props.userMessages,
+    sessionMessages: projectedMessages,
     parts: getMsgParts,
     status: sessionStatus,
     showReasoningSummaries: settings.general.showReasoningSummaries,
@@ -664,8 +672,7 @@ export function MessageTimeline(props: {
   }))
 
   const titleMutation = useMutation(() => ({
-    mutationFn: (input: { id: string; title: string }) =>
-      sdk().client.session.update({ sessionID: input.id, title: input.title }),
+    mutationFn: (input: { id: string; title: string }) => sdk().api.session.rename({ sessionID: input.id, title: input.title }),
     onSuccess: (_, input) => {
       sync().set(
         produce((draft) => {
@@ -809,7 +816,7 @@ export function MessageTimeline(props: {
     const nextSession = index === -1 ? undefined : (sessions[index + 1] ?? sessions[index - 1])
 
     await sdk()
-      .client.session.update({ sessionID, time: { archived: Date.now() } })
+      .api.session.archive({ sessionID })
       .then(() => {
         sync().set(
           produce((draft) => {
@@ -838,8 +845,8 @@ export function MessageTimeline(props: {
     const nextSession = index === -1 ? undefined : (sessions[index + 1] ?? sessions[index - 1])
 
     const result = await sdk()
-      .client.session.delete({ sessionID })
-      .then((x) => x.data)
+      .api.session.remove({ sessionID })
+      .then(() => true)
       .catch((err) => {
         showToast({
           title: language.t("session.delete.failed.title"),

packages/app/src/pages/session/timeline/projection.ts

@@ -1,16 +1,14 @@
-import { Binary } from "@opencode-ai/core/util/binary"
+import type { SessionMessageInfo } from "@opencode-ai/client/promise"
 import type { AssistantMessage, Message, Part, SessionStatus, UserMessage } from "@opencode-ai/sdk/v2"
-import { createMemo, mapArray, type Accessor } from "solid-js"
+import { createMemo, type Accessor } from "solid-js"
 import { reuseTimelineRows } from "./row-reconciliation"
 import { Timeline, TimelineRow } from "./rows"
 
 export { reuseTimelineRows } from "./row-reconciliation"
 
-const emptyAssistantMessages: AssistantMessage[] = []
-
 export function createTimelineProjection(input: {
   messages: Accessor<Message[]>
-  userMessages: Accessor<UserMessage[]>
+  sessionMessages: Accessor<SessionMessageInfo[]>
   parts: (messageID: string) => Part[]
   status: Accessor<SessionStatus>
   showReasoningSummaries: Accessor<boolean>
@@ -30,47 +28,19 @@ export function createTimelineProjection(input: {
     })
     return result
   })
-  const activeMessageID = createMemo(() => {
-    const parentID = input
-      .messages()
-      .findLast(
-        (message): message is AssistantMessage =>
-          message.role === "assistant" && typeof message.time.completed !== "number",
-      )?.parentID
-    if (parentID) {
-      const messages = input.messages()
-      const result = Binary.search(messages, parentID, (message) => message.id)
-      const message = result.found ? messages[result.index] : messages.find((item) => item.id === parentID)
-      if (message?.role === "user") return message.id
-    }
-
-    if (input.status().type === "idle") return
-    return input.messages().findLast((message) => message.role === "user")?.id
-  })
-  const messageRowMemos = createMemo(
-    mapArray(input.userMessages, (userMessage, indexAccessor) =>
-      createMemo((previous: TimelineRow.TimelineRow[] | undefined) =>
-        reuseTimelineRows(
-          previous,
-          Timeline.constructMessageRows(
-            userMessage,
-            input.parts,
-            assistantMessagesByParent().get(userMessage.id) ?? emptyAssistantMessages,
-            indexAccessor(),
-            input.showReasoningSummaries(),
-            input.status().type,
-            activeMessageID() === userMessage.id,
-            input.inlineComments(),
-          ),
-        ),
-      ),
+  const projection = createMemo(() =>
+    Timeline.constructSessionMessageRows(
+      input.sessionMessages(),
+      (messageID) => messageByID().get(messageID) as UserMessage | AssistantMessage | undefined,
+      input.parts,
+      input.showReasoningSummaries(),
+      input.status().type,
+      input.inlineComments(),
     ),
   )
+  const activeMessageID = createMemo(() => projection().activeMessageID)
   const rows = createMemo((previous: TimelineRow.TimelineRow[] | undefined) =>
-    reuseTimelineRows(
-      previous,
-      messageRowMemos().flatMap((memo) => memo()),
-    ),
+    reuseTimelineRows(previous, projection().rows),
   )
   const rowByKey = createMemo(() => new Map(rows().map((row) => [TimelineRow.key(row), row] as const)))
   const messageRowIndex = createMemo(() => {

packages/app/src/pages/session/timeline/rows-current.test.ts

@@ -0,0 +1,92 @@
+import { describe, expect, mock, test } from "bun:test"
+import type { SessionMessageInfo } from "@opencode-ai/client/promise"
+import { normalizeSessionMessages } from "@/utils/session-message"
+
+mock.module("@opencode-ai/session-ui/message-part", () => ({
+  renderable: () => true,
+  groupParts: (refs: Array<{ messageID: string; part: { id: string } }>) =>
+    refs.map((ref) => ({
+      type: "part" as const,
+      key: ref.part.id,
+      ref: { messageID: ref.messageID, partID: ref.part.id },
+    })),
+}))
+
+const { Timeline, TimelineRow } = await import("./rows")
+
+describe("current session timeline rows", () => {
+  test("derives turns and tagged rows from chronological current messages", () => {
+    const source = [
+      { id: "msg_1", type: "user", text: "first", time: { created: 1 } },
+      {
+        id: "msg_2",
+        type: "assistant",
+        agent: "build",
+        model: { id: "model", providerID: "provider" },
+        content: [{ type: "text", text: "answer" }],
+        time: { created: 2, completed: 3 },
+      },
+      { id: "msg_3", type: "user", text: "second", time: { created: 4 } },
+      {
+        id: "msg_4",
+        type: "assistant",
+        agent: "build",
+        model: { id: "model", providerID: "provider" },
+        content: [{ type: "reasoning", text: "working" }],
+        time: { created: 5 },
+      },
+    ] satisfies SessionMessageInfo[]
+    const normalized = normalizeSessionMessages("ses_1", source)
+    const messages = new Map(normalized.messages.map((message) => [message.id, message]))
+
+    const result = Timeline.constructSessionMessageRows(
+      source,
+      (messageID) => messages.get(messageID),
+      (messageID) => normalized.parts.get(messageID) ?? [],
+      true,
+      "busy",
+      true,
+    )
+
+    expect(result.activeMessageID).toBe("msg_3")
+    expect(result.rows.map(TimelineRow.key)).toEqual([
+      "user-message:msg_1",
+      "assistant-part:msg_1:msg_2:text:0",
+      "turn-gap:msg_3",
+      "user-message:msg_3",
+      "assistant-part:msg_3:msg_4:reasoning:0",
+    ])
+  })
+
+  test("renders a current shell message as a standalone turn", () => {
+    const source = [
+      {
+        id: "msg_shell",
+        type: "shell",
+        shellID: "shell_1",
+        command: "pwd",
+        status: "exited",
+        exit: 0,
+        output: { output: "/repo", cursor: 5, size: 5, truncated: false },
+        time: { created: 1, completed: 2 },
+      },
+    ] satisfies SessionMessageInfo[]
+    const normalized = normalizeSessionMessages("ses_1", source)
+    const messages = new Map(normalized.messages.map((message) => [message.id, message]))
+
+    const result = Timeline.constructSessionMessageRows(
+      source,
+      (messageID) => messages.get(messageID),
+      (messageID) => normalized.parts.get(messageID) ?? [],
+      true,
+      "idle",
+      true,
+    )
+
+    expect(result.activeMessageID).toBe("msg_shell")
+    expect(result.rows.map(TimelineRow.key)).toEqual([
+      "user-message:msg_shell",
+      "assistant-part:msg_shell:msg_shell:tool",
+    ])
+  })
+})

packages/app/src/pages/session/timeline/rows.ts

@@ -1,4 +1,5 @@
 import { parseCommentNote, readCommentMetadata } from "@/utils/comment-note"
+import type { SessionMessageInfo } from "@opencode-ai/client/promise"
 import { AssistantMessage, Part, SessionStatus, UserMessage } from "@opencode-ai/sdk/v2"
 import { groupParts, renderable, type PartGroup } from "@opencode-ai/session-ui/message-part"
 import { TimelineRow, type SummaryDiff } from "./timeline-row"
@@ -31,6 +32,47 @@ export type TimelineRowMap = {
 }
 
 export namespace Timeline {
+  export function constructSessionMessageRows(
+    messages: SessionMessageInfo[],
+    getMessage: (messageID: string) => UserMessage | AssistantMessage | undefined,
+    getMessageParts: (messageID: string) => Part[],
+    showReasoning: boolean,
+    status: SessionStatus["type"],
+    inlineComments: boolean,
+  ) {
+    const turns = messages.reduce<{ user: UserMessage; assistants: AssistantMessage[] }[]>((result, message) => {
+      const projected = getMessage(message.id)
+      if (message.type === "shell" && projected?.role === "user") {
+        const assistant = getMessage(`${message.id}:assistant`)
+        result.push({ user: projected, assistants: assistant?.role === "assistant" ? [assistant] : [] })
+        return result
+      }
+      if (projected?.role === "user") {
+        result.push({ user: projected, assistants: [] })
+        return result
+      }
+      if (projected?.role !== "assistant") return result
+      result.at(-1)?.assistants.push(projected)
+      return result
+    }, [])
+    const activeMessageID = turns.at(-1)?.user.id
+    return {
+      activeMessageID,
+      rows: turns.flatMap((turn, index) =>
+        constructMessageRows(
+          turn.user,
+          getMessageParts,
+          turn.assistants,
+          index,
+          showReasoning,
+          status,
+          turn.user.id === activeMessageID,
+          inlineComments,
+        ),
+      ),
+    }
+  }
+
   export function constructMessageRows(
     userMessage: UserMessage,
     getMessageParts: (messageID: string) => Part[],

packages/app/src/utils/server-compat.test.ts

@@ -0,0 +1,95 @@
+import { describe, expect, test } from "bun:test"
+import { createApiForServer, createSdkForServer } from "./server"
+import { createCompatibleApi } from "./server-compat"
+
+function setup(protocol: "v1" | "v2") {
+  const requests: Request[] = []
+  const fetcher = Object.assign(
+    async (input: string | URL | Request, init?: RequestInit) => {
+      const request = new Request(input, init)
+      requests.push(request)
+      if (request.method === "PATCH") {
+        return Response.json({
+          id: "ses_1",
+          slug: "ses_1",
+          projectID: "project",
+          directory: "/repo",
+          title: "Session",
+          version: "1",
+          time: { created: 1, updated: 1 },
+        })
+      }
+      if (request.method === "POST" && request.url.endsWith("/prompt_async"))
+        return new Response(undefined, { status: 204 })
+    if (request.method === "POST" && request.url.endsWith("/prompt")) {
+        return Response.json({
+          admittedSeq: 1,
+          id: "msg_1",
+          sessionID: "ses_1",
+          timeCreated: 1,
+          type: "user",
+          data: { text: "hello" },
+          delivery: "steer",
+      })
+    }
+    if (request.method === "GET") return Response.json([])
+    return new Response(undefined, { status: 204 })
+    },
+    { preconnect: globalThis.fetch.preconnect },
+  )
+  const server = { url: "http://localhost:4096" }
+  const api = createCompatibleApi({
+    protocol: Promise.resolve(protocol),
+    current: createApiForServer({ server, fetch: fetcher }),
+    legacy: (directory) => createSdkForServer({ server, fetch: fetcher, directory, throwOnError: true }),
+    directory: "/repo",
+  })
+  return { api, requests }
+}
+
+describe("createCompatibleApi", () => {
+  test("routes V1 archive through the legacy session update", async () => {
+    const { api, requests } = setup("v1")
+    await api.session.archive({ sessionID: "ses_1", directory: "/repo" })
+
+    const url = new URL(requests[0]!.url)
+    expect(url.pathname).toBe("/session/ses_1")
+    expect(requests[0]!.headers.get("x-opencode-directory")).toBe("%2Frepo")
+    expect(requests[0]!.method).toBe("PATCH")
+    expect(await requests[0]!.json()).toMatchObject({ time: { archived: expect.any(Number) } })
+  })
+
+  test("converts current prompts to the V1 prompt contract", async () => {
+    const { api, requests } = setup("v1")
+    await api.session.prompt({
+      sessionID: "ses_1",
+      id: "msg_1",
+      text: "hello",
+      agent: "build",
+      model: { providerID: "provider", modelID: "model" },
+    })
+
+    expect(new URL(requests[0]!.url).pathname).toBe("/session/ses_1/prompt_async")
+    expect(await requests[0]!.json()).toMatchObject({
+      messageID: "msg_1",
+      agent: "build",
+      model: { providerID: "provider", modelID: "model" },
+      parts: [{ type: "text", text: "hello" }],
+    })
+  })
+
+  test("keeps V2 session actions on the current API", async () => {
+    const { api, requests } = setup("v2")
+    await api.session.archive({ sessionID: "ses_1" })
+
+    expect(new URL(requests[0]!.url).pathname).toBe("/api/session/ses_1/archive")
+    expect(requests[0]!.method).toBe("POST")
+  })
+
+  test("uses the global V1 session search endpoint", async () => {
+    const { api, requests } = setup("v1")
+    await api.session.list({ parentID: null, search: "session", limit: 50 })
+
+    expect(new URL(requests[0]!.url).pathname).toBe("/experimental/session")
+  })
+})

packages/app/src/utils/server-compat.ts

@@ -0,0 +1,496 @@
+import type { ServerApi } from "./server"
+import type { ServerProtocol } from "./server-protocol"
+import type { OpencodeClient, Session } from "@opencode-ai/sdk/v2/client"
+import type {
+  Project,
+  ProjectCurrent,
+  SessionApi,
+  SessionCommandInput,
+  SessionCommandOutput,
+  SessionCompactInput,
+  SessionCompactOutput,
+  SessionInfo,
+  SessionPromptInput,
+  SessionPromptOutput,
+  SessionShellInput,
+  SessionShellOutput,
+} from "@opencode-ai/client/promise"
+
+type LegacyClient = OpencodeClient
+type LegacyFor = (directory?: string) => LegacyClient
+type CompatibleSessionApi = Omit<
+  SessionApi,
+  "prompt" | "command" | "shell" | "compact" | "rename" | "archive" | "remove"
+> & {
+  prompt: (input: SessionPromptInput & LegacyPrompt) => Promise<SessionPromptOutput>
+  command: (input: SessionCommandInput) => Promise<SessionCommandOutput>
+  shell: (input: SessionShellInput & LegacyPrompt) => Promise<SessionShellOutput>
+  compact: (input: SessionCompactInput & { model?: LegacyPrompt["model"] }) => Promise<SessionCompactOutput>
+  rename: (input: Parameters<SessionApi["rename"]>[0] & LegacyLocation) => ReturnType<SessionApi["rename"]>
+  archive: (input: Parameters<SessionApi["archive"]>[0] & LegacyLocation) => ReturnType<SessionApi["archive"]>
+  remove: (input: Parameters<SessionApi["remove"]>[0] & LegacyLocation) => ReturnType<SessionApi["remove"]>
+}
+export type CompatibleApi = Omit<ServerApi, "session"> & { readonly session: CompatibleSessionApi }
+type LegacyPrompt = {
+  agent?: string
+  model?: { providerID: string; modelID: string }
+  variant?: string
+}
+type LegacyLocation = { directory?: string }
+
+function mime(uri: string) {
+  const match = /^data:([^;,]+)/.exec(uri)
+  return match?.[1] ?? "application/octet-stream"
+}
+
+function sessionInfo(session: Session): SessionInfo {
+  return {
+    id: session.id,
+    parentID: session.parentID,
+    projectID: session.projectID,
+    agent: session.agent,
+    model: session.model && {
+      id: session.model.id,
+      providerID: session.model.providerID,
+      variant: session.model.variant,
+    },
+    cost: session.cost ?? 0,
+    tokens: session.tokens ?? { input: 0, output: 0, reasoning: 0, cache: { read: 0, write: 0 } },
+    time: session.time,
+    title: session.title,
+    location: { directory: session.directory, workspaceID: session.workspaceID },
+    subpath: session.path,
+    revert: session.revert && {
+      messageID: session.revert.messageID,
+      partID: session.revert.partID,
+      snapshot: session.revert.snapshot,
+    },
+  }
+}
+
+export function createCompatibleApi(input: {
+  protocol: Promise<ServerProtocol>
+  current: ServerApi
+  legacy: LegacyFor
+  directory?: string
+}): CompatibleApi {
+  const directory = (location?: { directory?: string }) => location?.directory ?? input.directory
+  const legacy = (location?: { directory?: string }) => input.legacy(directory(location))
+  const isV1 = () => input.protocol.then((protocol) => protocol === "v1")
+  const located = <T>(data: T, value?: { directory?: string }) => ({
+    location: {
+      directory: directory(value) ?? "",
+      project: { id: "", directory: directory(value) ?? "" },
+    },
+    data,
+  })
+
+  return {
+    ...input.current,
+    session: {
+      ...input.current.session,
+      async list(
+        value?: Parameters<ServerApi["session"]["list"]>[0],
+        options?: Parameters<ServerApi["session"]["list"]>[1],
+      ) {
+        if (!(await isV1())) return input.current.session.list(value, options)
+        if (!value?.directory && value?.search !== undefined) {
+          const result = await legacy().experimental.session.list(
+            {
+              roots: value.parentID === null ? true : undefined,
+              search: value.search,
+              limit: value.limit,
+            },
+            options,
+          )
+          return { data: (result.data ?? []).map(sessionInfo), cursor: {} }
+        }
+        const result = await legacy({ directory: value?.directory }).session.list({
+          directory: value?.directory,
+          roots: value?.parentID === null ? true : undefined,
+          search: value?.search,
+          limit: value?.limit,
+        })
+        return { data: (result.data ?? []).map(sessionInfo), cursor: {} }
+      },
+      async create(value?: Parameters<ServerApi["session"]["create"]>[0]) {
+        if (!(await isV1())) return input.current.session.create(value)
+        const result = await legacy(value?.location ?? undefined).session.create({
+          directory: directory(value?.location ?? undefined),
+        })
+        if (!result.data) throw new Error("Failed to create session")
+        return sessionInfo(result.data)
+      },
+      async get(value: Parameters<ServerApi["session"]["get"]>[0]) {
+        if (!(await isV1())) return input.current.session.get(value)
+        const result = await legacy().session.get(value)
+        if (!result.data) throw new Error(`Session not found: ${value.sessionID}`)
+        return sessionInfo(result.data)
+      },
+      async active() {
+        if (!(await isV1())) return input.current.session.active()
+        const result = await legacy().session.status()
+        return Object.fromEntries(
+          Object.entries(result.data ?? {}).flatMap(([sessionID, status]) =>
+            status.type === "idle" ? [] : [[sessionID, { type: "running" as const }]],
+          ),
+        )
+      },
+      async rename(value: Parameters<ServerApi["session"]["rename"]>[0] & LegacyLocation) {
+        if (!(await isV1())) return input.current.session.rename(value)
+        await legacy(value).session.update({ sessionID: value.sessionID, title: value.title })
+      },
+      async archive(value: Parameters<ServerApi["session"]["archive"]>[0] & LegacyLocation) {
+        if (!(await isV1())) return input.current.session.archive(value)
+        await legacy(value).session.update({ sessionID: value.sessionID, time: { archived: Date.now() } })
+      },
+      async remove(value: Parameters<ServerApi["session"]["remove"]>[0] & LegacyLocation) {
+        if (!(await isV1())) return input.current.session.remove(value)
+        await legacy(value).session.delete(value)
+      },
+      async fork(value: Parameters<ServerApi["session"]["fork"]>[0]) {
+        if (!(await isV1())) return input.current.session.fork(value)
+        const result = await legacy().session.fork(value)
+        if (!result.data) throw new Error("Failed to fork session")
+        return sessionInfo(result.data)
+      },
+      async interrupt(value: Parameters<ServerApi["session"]["interrupt"]>[0]) {
+        if (!(await isV1())) return input.current.session.interrupt(value)
+        await legacy().session.abort(value)
+      },
+      async prompt(value: SessionPromptInput & LegacyPrompt) {
+        if (!(await isV1())) return input.current.session.prompt(value)
+        await legacy().session.promptAsync({
+          sessionID: value.sessionID,
+          messageID: value.id ?? undefined,
+          agent: value.agent,
+          model: value.model,
+          variant: value.variant,
+          parts: [
+            { type: "text", text: value.text },
+            ...(value.files ?? []).map((file) => ({
+              type: "file" as const,
+              mime: mime(file.uri),
+              url: file.uri,
+              filename: file.name,
+            })),
+            ...(value.agents ?? []).map((agent) => ({
+              type: "agent" as const,
+              name: agent.name,
+              source: agent.mention
+                ? { value: agent.mention.text, start: agent.mention.start, end: agent.mention.end }
+                : undefined,
+            })),
+          ],
+        })
+        return {
+          admittedSeq: 0,
+          id: value.id ?? "",
+          sessionID: value.sessionID,
+          timeCreated: Date.now(),
+          type: "user",
+          data: { text: value.text },
+          delivery: value.delivery ?? "steer",
+        }
+      },
+      async command(value: SessionCommandInput) {
+        if (!(await isV1())) return input.current.session.command(value)
+        await legacy().session.command({
+          sessionID: value.sessionID,
+          messageID: value.id ?? undefined,
+          command: value.command,
+          arguments: value.arguments ?? "",
+          agent: value.agent ?? undefined,
+          model: value.model ? `${value.model.providerID}/${value.model.id}` : undefined,
+          variant: value.model?.variant,
+          parts: value.files?.map((file) => ({
+            type: "file" as const,
+            mime: mime(file.uri),
+            url: file.uri,
+            filename: file.name,
+          })),
+        })
+        return {
+          admittedSeq: 0,
+          id: value.id ?? "",
+          sessionID: value.sessionID,
+          timeCreated: Date.now(),
+          type: "user",
+          data: { text: `/${value.command} ${value.arguments ?? ""}`.trim() },
+          delivery: value.delivery ?? "steer",
+        }
+      },
+      async shell(value: SessionShellInput & LegacyPrompt) {
+        if (!(await isV1())) return input.current.session.shell(value)
+        await legacy().session.shell({
+          sessionID: value.sessionID,
+          command: value.command,
+          agent: value.agent,
+          model: value.model,
+        })
+      },
+      compact: async (value: SessionCompactInput & { model?: LegacyPrompt["model"] }) => {
+        if (!(await isV1())) return input.current.session.compact(value)
+        if (!value.model) throw new Error("A model is required to compact a V1 session")
+        await legacy().session.summarize({
+          sessionID: value.sessionID,
+          providerID: value.model.providerID,
+          modelID: value.model.modelID,
+        })
+        return {
+          admittedSeq: 0,
+          id: value.id ?? "",
+          sessionID: value.sessionID,
+          timeCreated: Date.now(),
+          type: "compaction",
+        }
+      },
+      revert: {
+        stage: async (value: Parameters<ServerApi["session"]["revert"]["stage"]>[0]) => {
+          if (!(await isV1())) return input.current.session.revert.stage(value)
+          await legacy().session.revert(value)
+          return { messageID: value.messageID }
+        },
+        clear: async (value: Parameters<ServerApi["session"]["revert"]["clear"]>[0]) => {
+          if (!(await isV1())) return input.current.session.revert.clear(value)
+          await legacy().session.unrevert(value)
+        },
+        commit: input.current.session.revert.commit,
+      },
+    },
+    project: {
+      ...input.current.project,
+      async list() {
+        if (!(await isV1())) return input.current.project.list()
+        return ((await legacy().project.list()).data ?? []) as Project[]
+      },
+      async current(value?: Parameters<ServerApi["project"]["current"]>[0]) {
+        if (!(await isV1())) return input.current.project.current(value)
+        const result = await legacy(value?.location).project.current()
+        if (!result.data) throw new Error("Project not found")
+        return { id: result.data.id, directory: result.data.worktree } satisfies ProjectCurrent
+      },
+      async update(value: Parameters<ServerApi["project"]["update"]>[0]) {
+        if (!(await isV1())) return input.current.project.update(value)
+        const project = (await legacy().project.list()).data?.find((item) => item.id === value.projectID)
+        const result = await legacy({ directory: project?.worktree }).project.update({
+          ...value,
+          directory: project?.worktree,
+        })
+        if (!result.data) throw new Error(`Project not found: ${value.projectID}`)
+        return result.data as Project
+      },
+      async directories(value: Parameters<ServerApi["project"]["directories"]>[0]) {
+        if (!(await isV1())) return input.current.project.directories(value)
+        const result = await legacy(value.location).worktree.list()
+        return (result.data ?? []).map((item) => ({ directory: item }))
+      },
+    },
+    path: {
+      ...input.current.path,
+      async get(value?: Parameters<ServerApi["path"]["get"]>[0]) {
+        if (!(await isV1())) return input.current.path.get(value)
+        const result = await legacy(value?.location).path.get()
+        if (!result.data) throw new Error("Path unavailable")
+        return result.data
+      },
+    },
+    vcs: {
+      ...input.current.vcs,
+      async get(value?: Parameters<ServerApi["vcs"]["get"]>[0]) {
+        if (!(await isV1())) return input.current.vcs.get(value)
+        const result = await legacy(value?.location).vcs.get()
+        return located({ branch: result.data?.branch, defaultBranch: undefined }, value?.location)
+      },
+      async status(value?: Parameters<ServerApi["vcs"]["status"]>[0]) {
+        if (!(await isV1())) return input.current.vcs.status(value)
+        const result = await legacy(value?.location).vcs.status()
+        return located(result.data ?? [], value?.location)
+      },
+      async diff(value: Parameters<ServerApi["vcs"]["diff"]>[0]) {
+        if (!(await isV1())) return input.current.vcs.diff(value)
+        const result = await legacy(value.location).vcs.diff({
+          mode: value.mode === "working" ? "git" : value.mode,
+          context: value.context,
+        })
+        return located(
+          (result.data ?? []).map((file) => ({
+            file: file.file,
+            patch: file.patch ?? "",
+            additions: file.additions,
+            deletions: file.deletions,
+            status: file.status ?? "modified",
+          })),
+          value.location,
+        )
+      },
+    },
+    file: {
+      ...input.current.file,
+      async list(value?: Parameters<ServerApi["file"]["list"]>[0]) {
+        if (!(await isV1())) return input.current.file.list(value)
+        const result = await legacy(value?.location).file.list({ path: value?.path ?? "" })
+        return located(result.data ?? [], value?.location)
+      },
+      async find(value: Parameters<ServerApi["file"]["find"]>[0]) {
+        if (!(await isV1())) return input.current.file.find(value)
+        const result = await legacy(value.location).find.files({
+          query: value.query,
+          type: value.type,
+          limit: value.limit,
+        })
+        return located(
+          (result.data ?? []).map((path) => ({ path, type: value.type ?? "file" })),
+          value.location,
+        )
+      },
+    },
+    integration: {
+      ...input.current.integration,
+      async get(value: Parameters<ServerApi["integration"]["get"]>[0]) {
+        if (!(await isV1())) return input.current.integration.get(value)
+        const methods = ((await legacy(value.location).provider.auth()).data?.[value.integrationID] ?? []).map(
+          (method, index) =>
+            method.type === "api"
+              ? { type: "key" as const, label: method.label }
+              : { type: "oauth" as const, id: String(index), label: method.label, prompts: method.prompts },
+        )
+        return located(
+          {
+            id: value.integrationID,
+            name: value.integrationID,
+            methods,
+            connections: [],
+          },
+          value.location,
+        )
+      },
+      connect: {
+        ...input.current.integration.connect,
+        key: async (value: Parameters<ServerApi["integration"]["connect"]["key"]>[0]) => {
+          if (!(await isV1())) return input.current.integration.connect.key(value)
+          await legacy(value.location).auth.set({
+            providerID: value.integrationID,
+            auth: { type: "api", key: value.key },
+          })
+        },
+      },
+      oauth: {
+        ...input.current.integration.oauth,
+        connect: async (value: Parameters<ServerApi["integration"]["oauth"]["connect"]>[0]) => {
+          if (!(await isV1())) return input.current.integration.oauth.connect(value)
+          const method = Number(value.methodID)
+          const result = await legacy(value.location).provider.oauth.authorize(
+            { providerID: value.integrationID, method, inputs: value.inputs },
+            { throwOnError: true },
+          )
+          if (!result.data) throw new Error("Failed to start OAuth authorization")
+          return located(
+            {
+              attemptID: `${value.integrationID}:${method}`,
+              url: result.data.url,
+              instructions: result.data.instructions,
+              mode: result.data.method,
+              time: { created: Date.now(), expires: Date.now() + 10 * 60 * 1000 },
+            },
+            value.location,
+          )
+        },
+        complete: async (value: Parameters<ServerApi["integration"]["oauth"]["complete"]>[0]) => {
+          if (!(await isV1())) return input.current.integration.oauth.complete(value)
+          const method = Number(value.attemptID.split(":").at(-1))
+          await legacy(value.location).provider.oauth.callback(
+            { providerID: value.integrationID, method, code: value.code },
+            { throwOnError: true },
+          )
+        },
+        status: async (value: Parameters<ServerApi["integration"]["oauth"]["status"]>[0]) => {
+          if (!(await isV1())) return input.current.integration.oauth.status(value)
+          const method = Number(value.attemptID.split(":").at(-1))
+          await legacy(value.location).provider.oauth.callback(
+            { providerID: value.integrationID, method },
+            { throwOnError: true },
+          )
+          return located(
+            { status: "complete" as const, time: { created: Date.now(), expires: Date.now() } },
+            value.location,
+          )
+        },
+      },
+    },
+    pty: {
+      ...input.current.pty,
+      async shells(value?: Parameters<ServerApi["pty"]["shells"]>[0]) {
+        if (!(await isV1())) return input.current.pty.shells(value)
+        return located((await legacy(value?.location).pty.shells()).data ?? [], value?.location)
+      },
+      async list(value?: Parameters<ServerApi["pty"]["list"]>[0]) {
+        if (!(await isV1())) return input.current.pty.list(value)
+        return located((await legacy(value?.location).pty.list()).data ?? [], value?.location)
+      },
+      async create(value?: Parameters<ServerApi["pty"]["create"]>[0]) {
+        if (!(await isV1())) return input.current.pty.create(value)
+        const result = await legacy(value?.location).pty.create({
+          command: value?.command,
+          args: value?.args ? [...value.args] : undefined,
+          cwd: value?.cwd,
+          title: value?.title,
+          env: value?.env,
+        })
+        if (!result.data) throw new Error("Failed to create terminal")
+        return located(result.data, value?.location)
+      },
+      async get(value: Parameters<ServerApi["pty"]["get"]>[0]) {
+        if (!(await isV1())) return input.current.pty.get(value)
+        const result = await legacy(value.location).pty.get({ ptyID: value.ptyID })
+        if (!result.data) throw new Error(`Terminal not found: ${value.ptyID}`)
+        return located(result.data, value.location)
+      },
+      async update(value: Parameters<ServerApi["pty"]["update"]>[0]) {
+        if (!(await isV1())) return input.current.pty.update(value)
+        const result = await legacy(value.location).pty.update({
+          ptyID: value.ptyID,
+          title: value.title,
+          size: value.size,
+        })
+        if (!result.data) throw new Error(`Terminal not found: ${value.ptyID}`)
+        return located(result.data, value.location)
+      },
+      async remove(value: Parameters<ServerApi["pty"]["remove"]>[0]) {
+        if (!(await isV1())) return input.current.pty.remove(value)
+        await legacy(value.location).pty.remove({ ptyID: value.ptyID })
+      },
+      async connectToken(value: Parameters<ServerApi["pty"]["connectToken"]>[0]) {
+        if (!(await isV1())) return input.current.pty.connectToken(value)
+        const result = await legacy(value.location).pty.connectToken({ ptyID: value.ptyID })
+        if (!result.data) throw new Error(`Failed to connect terminal: ${value.ptyID}`)
+        return located(result.data, value.location)
+      },
+    },
+    permission: {
+      ...input.current.permission,
+      async reply(value: Parameters<ServerApi["permission"]["reply"]>[0]) {
+        if (!(await isV1())) return input.current.permission.reply(value)
+        await legacy().permission.respond({
+          sessionID: value.sessionID,
+          permissionID: value.requestID,
+          response: value.reply,
+        })
+      },
+    },
+    question: {
+      ...input.current.question,
+      async reply(value: Parameters<ServerApi["question"]["reply"]>[0]) {
+        if (!(await isV1())) return input.current.question.reply(value)
+        await legacy().question.reply({
+          requestID: value.requestID,
+          answers: value.answers.map((answer) => [...answer]),
+        })
+      },
+      async reject(value: Parameters<ServerApi["question"]["reject"]>[0]) {
+        if (!(await isV1())) return input.current.question.reject(value)
+        await legacy().question.reject({ requestID: value.requestID })
+      },
+    },
+  }
+}

packages/app/src/utils/server-health.test.ts

@@ -14,15 +14,32 @@ function abortFromInput(input: RequestInfo | URL, init?: RequestInit) {
 
 describe("checkServerHealth", () => {
   test("returns healthy response with version", async () => {
-    const fetch = (async () =>
-      new Response(JSON.stringify({ healthy: true, version: "1.2.3" }), {
+    let request: URL | undefined
+    const fetch = (async (input: RequestInfo | URL) => {
+      request = input instanceof URL ? input : new URL(input instanceof Request ? input.url : input)
+      return new Response(JSON.stringify({ healthy: true, version: "1.2.3" }), {
         status: 200,
         headers: { "content-type": "application/json" },
-      })) as unknown as typeof globalThis.fetch
+      })
+    }) as unknown as typeof globalThis.fetch
 
     const result = await checkServerHealth(server, fetch)
 
     expect(result).toEqual({ healthy: true, version: "1.2.3" })
+    expect(request?.pathname).toBe("/api/health")
+  })
+
+  test("falls back to the V1 health endpoint", async () => {
+    const paths: string[] = []
+    const fetch = (async (input: RequestInfo | URL) => {
+      const url = input instanceof URL ? input : new URL(input instanceof Request ? input.url : input)
+      paths.push(url.pathname)
+      if (url.pathname === "/api/health") return new Response(undefined, { status: 404 })
+      return Response.json({ healthy: true, version: "1.18.4" })
+    }) as unknown as typeof globalThis.fetch
+
+    expect(await checkServerHealth(server, fetch)).toEqual({ healthy: true, version: "1.18.4" })
+    expect(paths).toEqual(["/api/health", "/global/health"])
   })
 
   test("allows slow servers thirty seconds by default", async () => {
@@ -142,7 +159,7 @@ describe("checkServerHealth", () => {
       retryDelayMs: 1,
     })
 
-    expect(count).toBe(3)
+    expect(count).toBe(6)
     expect(result).toEqual({ healthy: false })
   })
 })

packages/app/src/utils/server-health.ts

@@ -1,6 +1,7 @@
 import { usePlatform } from "@/context/platform"
 import { ServerConnection } from "@/context/server"
-import { createSdkForServer } from "./server"
+import { authTokenFromCredentials, createSdkForServer } from "./server"
+import { ClientError, OpenCode } from "@opencode-ai/client"
 import { Accessor, createEffect, onCleanup } from "solid-js"
 import { createStore, reconcile } from "solid-js/store"
 
@@ -61,6 +62,7 @@ function wait(ms: number, signal?: AbortSignal) {
 
 function retryable(error: unknown, signal?: AbortSignal) {
   if (signal?.aborted) return false
+  if (error instanceof ClientError) return error.reason === "Transport"
   if (!(error instanceof Error)) return false
   if (error.name === "AbortError" || error.name === "TimeoutError") return false
   if (error instanceof TypeError) return true
@@ -82,15 +84,27 @@ export async function checkServerHealth(
       .then(() => attempt(count + 1))
       .catch(() => ({ healthy: false }))
   }
-  const attempt = (count: number): Promise<ServerHealth> =>
-    createSdkForServer({
-      server,
+  const attempt = async (count: number): Promise<ServerHealth> => {
+    const current = await OpenCode.make({
+      baseUrl: server.url,
       fetch,
-      signal,
+      headers: server.password
+        ? {
+            Authorization: `Basic ${authTokenFromCredentials({ username: server.username, password: server.password })}`,
+          }
+        : undefined,
     })
+      .health.get({ signal })
+      .then((x) => ({ data: { healthy: x.healthy === true, version: x.version } }))
+      .catch((error) => ({ error }))
+    if ("data" in current) return current.data
+    if (signal?.aborted) return { healthy: false }
+
+    return createSdkForServer({ server, fetch, signal })
       .global.health()
       .then((x) => (x.error ? next(count, x.error) : { healthy: x.data?.healthy === true, version: x.data?.version }))
       .catch((error) => next(count, error))
+  }
   return attempt(0).finally(() => timeout?.clear?.())
 }
 

packages/app/src/utils/server-protocol.test.ts

@@ -0,0 +1,40 @@
+import { describe, expect, test } from "bun:test"
+import { detectServerProtocol } from "./server-protocol"
+
+const server = { url: "http://localhost:4096" }
+const json = (value: unknown, status = 200) =>
+  new Response(JSON.stringify(value), { status, headers: { "content-type": "application/json" } })
+const mockFetch = (run: (input: string | URL | Request) => Promise<Response>) =>
+  Object.assign(run, { preconnect: globalThis.fetch.preconnect })
+
+describe("detectServerProtocol", () => {
+  test("prefers the legacy health endpoint when both API generations exist", async () => {
+    const fetcher = mockFetch((input) => {
+      const path = new URL(input instanceof Request ? input.url : input).pathname
+      if (path === "/global/health") return Promise.resolve(json({ healthy: true, version: "1.18.4" }))
+      return Promise.resolve(json({ healthy: true, version: "2.0.0", pid: 123 }))
+    })
+
+    expect(await detectServerProtocol(server, fetcher)).toBe("v1")
+  })
+
+  test("recognizes V2 health by its process identifier", async () => {
+    const fetcher = mockFetch((input) => {
+      const path = new URL(input instanceof Request ? input.url : input).pathname
+      if (path === "/global/health") return Promise.resolve(json({}, 404))
+      return Promise.resolve(json({ healthy: true, version: "2.0.0", pid: 123 }))
+    })
+
+    expect(await detectServerProtocol(server, fetcher)).toBe("v2")
+  })
+
+  test("recognizes the transitional V1 API health response", async () => {
+    const fetcher = mockFetch((input) => {
+      const path = new URL(input instanceof Request ? input.url : input).pathname
+      if (path === "/global/health") return Promise.resolve(json({}, 404))
+      return Promise.resolve(json({ healthy: true }))
+    })
+
+    expect(await detectServerProtocol(server, fetcher)).toBe("v1")
+  })
+})

packages/app/src/utils/server-protocol.ts

@@ -0,0 +1,35 @@
+import type { ServerConnection } from "@/context/server"
+import { authTokenFromCredentials } from "./server"
+
+export type ServerProtocol = "v1" | "v2"
+
+function headers(server: ServerConnection.HttpBase) {
+  if (!server.password) return
+  return {
+    Authorization: `Basic ${authTokenFromCredentials({ username: server.username, password: server.password })}`,
+  }
+}
+
+async function probe(server: ServerConnection.HttpBase, fetch: typeof globalThis.fetch, path: string) {
+  const response = await fetch(new URL(path, server.url), {
+    headers: headers(server),
+    signal: AbortSignal.timeout(5_000),
+  })
+  if (!response.ok || !response.headers.get("content-type")?.includes("application/json")) return
+  const value: unknown = await response.json()
+  if (!value || typeof value !== "object") return
+  return value
+}
+
+export async function detectServerProtocol(
+  server: ServerConnection.HttpBase,
+  fetch: typeof globalThis.fetch,
+): Promise<ServerProtocol> {
+  const legacy = await probe(server, fetch, "/global/health").catch(() => undefined)
+  if (legacy && "healthy" in legacy && legacy.healthy === true) return "v1"
+
+  const current = await probe(server, fetch, "/api/health").catch(() => undefined)
+  if (current && "pid" in current && typeof current.pid === "number") return "v2"
+  if (current && "healthy" in current && current.healthy === true) return "v1"
+  return "v2"
+}

packages/app/src/utils/server.ts

@@ -1,4 +1,23 @@
 import { createOpencodeClient } from "@opencode-ai/sdk/v2/client"
+import { OpenCode } from "@opencode-ai/client/promise"
+import type {
+  AgentApi,
+  CatalogApi,
+  CommandApi,
+  EventApi,
+  FileApi,
+  IntegrationApi,
+  McpApi,
+  MessageApi,
+  PathApi,
+  PermissionApi,
+  ProjectApi,
+  PtyApi,
+  QuestionApi,
+  ReferenceApi,
+  SessionApi,
+  VcsApi,
+} from "@opencode-ai/client/promise"
 import type { ServerConnection } from "@/context/server"
 import { decode64 } from "@/utils/base64"
 
@@ -39,3 +58,39 @@ export function createSdkForServer({
     baseUrl: server.url,
   })
 }
+
+export interface ServerApi extends CatalogApi {
+  readonly agent: AgentApi
+  readonly command: CommandApi
+  readonly event: EventApi
+  readonly file: FileApi
+  readonly integration: IntegrationApi
+  readonly mcp: McpApi
+  readonly message: MessageApi
+  readonly path: PathApi
+  readonly permission: PermissionApi
+  readonly project: ProjectApi
+  readonly pty: PtyApi
+  readonly question: QuestionApi
+  readonly reference: ReferenceApi
+  readonly session: SessionApi
+  readonly vcs: VcsApi
+}
+
+export function createApiForServer(input: {
+  server: ServerConnection.HttpBase
+  fetch?: typeof globalThis.fetch
+}): ServerApi {
+  return OpenCode.make({
+    baseUrl: input.server.url,
+    fetch: input.fetch,
+    headers: input.server.password
+      ? {
+          Authorization: `Basic ${authTokenFromCredentials({
+            username: input.server.username,
+            password: input.server.password,
+          })}`,
+        }
+      : undefined,
+  })
+}

packages/app/src/utils/session-message.test.ts

@@ -0,0 +1,200 @@
+import { describe, expect, test } from "bun:test"
+import type { SessionMessageInfo } from "@opencode-ai/client/promise"
+import { normalizeSessionMessages } from "./session-message"
+
+describe("normalizeSessionMessages", () => {
+  test("projects current turns into stable legacy rendering records", () => {
+    const source = [
+      { id: "msg_1", type: "agent-switched", agent: "build", time: { created: 1 } },
+      {
+        id: "msg_2",
+        type: "model-switched",
+        model: { id: "claude", providerID: "anthropic", variant: "high" },
+        time: { created: 2 },
+      },
+      {
+        id: "msg_3",
+        type: "user",
+        text: "inspect this",
+        files: [
+          {
+            data: "aGVsbG8=",
+            mime: "text/plain",
+            name: "note.txt",
+            source: { type: "inline" },
+          },
+        ],
+        agents: [{ name: "review", mention: { text: "@review", start: 0, end: 7 } }],
+        time: { created: 3 },
+      },
+      {
+        id: "msg_4",
+        type: "assistant",
+        agent: "build",
+        model: { id: "claude", providerID: "anthropic", variant: "high" },
+        content: [
+          { type: "reasoning", text: "Thinking", time: { created: 4, completed: 5 } },
+          { type: "text", text: "Result" },
+          {
+            type: "tool",
+            id: "call_1",
+            name: "read",
+            state: {
+              status: "completed",
+              input: { filePath: "note.txt" },
+              structured: { title: "note.txt" },
+              content: [{ type: "text", text: "hello" }],
+            },
+            time: { created: 5, ran: 6, completed: 7 },
+          },
+        ],
+        cost: 0.1,
+        tokens: { input: 10, output: 5, reasoning: 2, cache: { read: 1, write: 0 } },
+        time: { created: 4, completed: 7 },
+      },
+      {
+        id: "msg_5",
+        type: "compaction",
+        status: "completed",
+        reason: "auto",
+        summary: "summary",
+        recent: "recent",
+        time: { created: 8 },
+      },
+    ] satisfies SessionMessageInfo[]
+
+    const result = normalizeSessionMessages("ses_1", source)
+
+    expect(result.messages).toHaveLength(2)
+    expect(result.messages[0]).toMatchObject({
+      id: "msg_3",
+      role: "user",
+      agent: "build",
+      model: { providerID: "anthropic", modelID: "claude", variant: "high" },
+    })
+    expect(result.messages[1]).toMatchObject({ id: "msg_4", role: "assistant", parentID: "msg_3", cost: 0.1 })
+    expect(result.parts.get("msg_3")?.map((part) => part.id)).toEqual([
+      "msg_3:text:0",
+      "msg_3:file:0",
+      "msg_3:agent:0",
+      "msg_5:compaction",
+    ])
+    expect(result.parts.get("msg_4")?.map((part) => part.id)).toEqual(["msg_4:reasoning:0", "msg_4:text:0", "call_1"])
+    expect(result.parts.get("msg_4")?.[2]).toMatchObject({
+      type: "tool",
+      tool: "read",
+      state: { status: "completed", output: "hello" },
+    })
+  })
+
+  test("does not invent a parent for an assistant-only page", () => {
+    const source = [
+      {
+        id: "msg_2",
+        type: "assistant",
+        agent: "build",
+        model: { id: "model", providerID: "provider" },
+        content: [{ type: "text", text: "orphan" }],
+        time: { created: 2 },
+      },
+    ] satisfies SessionMessageInfo[]
+
+    expect(normalizeSessionMessages("ses_1", source).messages).toEqual([])
+  })
+
+  test("projects a current shell message into a renderable standalone turn", () => {
+    const source = [
+      {
+        id: "msg_shell",
+        type: "shell",
+        shellID: "shell_1",
+        command: "printf hello",
+        status: "exited",
+        exit: 0,
+        output: { output: "hello", cursor: 5, size: 5, truncated: false },
+        time: { created: 1, completed: 2 },
+      },
+    ] satisfies SessionMessageInfo[]
+
+    const result = normalizeSessionMessages("ses_1", source)
+
+    expect(result.messages).toEqual([
+      expect.objectContaining({ id: "msg_shell", role: "user" }),
+      expect.objectContaining({ id: "msg_shell:assistant", role: "assistant", parentID: "msg_shell" }),
+    ])
+    expect(result.parts.get("msg_shell")).toEqual([
+      expect.objectContaining({ type: "text", text: "printf hello" }),
+    ])
+    expect(result.parts.get("msg_shell:assistant")).toEqual([
+      expect.objectContaining({
+        type: "tool",
+        tool: "bash",
+        state: expect.objectContaining({
+          status: "completed",
+          input: { command: "printf hello" },
+          output: "hello",
+          title: "Shell",
+        }),
+      }),
+    ])
+  })
+
+  test("adapts current edit fields for the legacy edit renderer", () => {
+    const source = [
+      { id: "msg_user", type: "user", text: "edit it", time: { created: 1 } },
+      {
+        id: "msg_assistant",
+        type: "assistant",
+        agent: "build",
+        model: { id: "model", providerID: "provider" },
+        content: [
+          {
+            type: "tool",
+            id: "call_edit",
+            name: "edit",
+            state: {
+              status: "completed",
+              input: { path: "/repo/README.md", oldString: "old", newString: "new" },
+              content: [{ type: "text", text: "Edited file successfully" }],
+              structured: {
+                files: [
+                  {
+                    file: "README.md",
+                    patch: "@@ -1 +1 @@\n-old\n+new",
+                    additions: 1,
+                    deletions: 1,
+                    status: "modified",
+                  },
+                ],
+                replacements: 1,
+              },
+            },
+            time: { created: 2, ran: 3, completed: 4 },
+          },
+        ],
+        time: { created: 2, completed: 4 },
+      },
+    ] satisfies SessionMessageInfo[]
+
+    const result = normalizeSessionMessages("ses_1", source)
+
+    expect(result.parts.get("msg_assistant")).toEqual([
+      expect.objectContaining({
+        type: "tool",
+        tool: "edit",
+        state: expect.objectContaining({
+          status: "completed",
+          input: expect.objectContaining({ path: "/repo/README.md", filePath: "/repo/README.md" }),
+          metadata: expect.objectContaining({
+            filediff: {
+              file: "README.md",
+              patch: "@@ -1 +1 @@\n-old\n+new",
+              additions: 1,
+              deletions: 1,
+            },
+          }),
+        }),
+      }),
+    ])
+  })
+})

packages/app/src/utils/session-message.ts

@@ -0,0 +1,348 @@
+import type {
+  SessionMessageAssistant,
+  SessionMessageAssistantTool,
+  SessionMessageInfo,
+  SessionMessageShell,
+  SessionMessageUser,
+} from "@opencode-ai/client/promise"
+import type { AssistantMessage, FilePart, Message, Part, ToolPart, UserMessage } from "@opencode-ai/sdk/v2"
+import { Option, Schema } from "effect"
+
+const emptyTokens = { input: 0, output: 0, reasoning: 0, cache: { read: 0, write: 0 } }
+const emptyModel: { id: string; providerID: string; variant?: string } = { id: "", providerID: "" }
+const decodeToolInput = Schema.decodeUnknownOption(Schema.UnknownFromJsonString)
+
+function record(value: unknown): value is Record<string, unknown> {
+  return !!value && typeof value === "object" && !Array.isArray(value)
+}
+
+function normalizeToolInput(name: string, input: Record<string, unknown>) {
+  if (!["edit", "write"].includes(name) || typeof input.path !== "string" || typeof input.filePath === "string")
+    return input
+  return { ...input, filePath: input.path }
+}
+
+function normalizeToolMetadata(name: string, metadata: Record<string, unknown>) {
+  if (name !== "edit" || !Array.isArray(metadata.files)) return metadata
+  const file = metadata.files.find(record)
+  if (!file || typeof file.file !== "string") return metadata
+  return {
+    ...metadata,
+    filediff: {
+      file: file.file,
+      patch: typeof file.patch === "string" ? file.patch : undefined,
+      additions: typeof file.additions === "number" ? file.additions : 0,
+      deletions: typeof file.deletions === "number" ? file.deletions : 0,
+    },
+  }
+}
+
+export function normalizeSessionMessages(sessionID: string, source: readonly SessionMessageInfo[]) {
+  const messages: Message[] = []
+  const parts = new Map<string, Part[]>()
+  let agent = ""
+  let model = emptyModel
+  let parentID: string | undefined
+
+  source.forEach((message) => {
+    if (message.type === "agent-switched") {
+      agent = message.agent
+      return
+    }
+    if (message.type === "model-switched") {
+      model = message.model
+      return
+    }
+    if (message.type === "user") {
+      parentID = message.id
+      messages.push(userMessage(sessionID, message, agent, model))
+      parts.set(message.id, userParts(sessionID, message))
+      return
+    }
+    if (message.type === "synthetic" && message.description?.trim()) {
+      parentID = message.id
+      messages.push({
+        id: message.id,
+        sessionID,
+        role: "user",
+        time: message.time,
+        agent,
+        model: { providerID: model.providerID, modelID: model.id, variant: model.variant },
+      })
+      parts.set(message.id, [textPart(sessionID, message.id, 0, message.description, true)])
+      return
+    }
+    if (message.type === "shell") {
+      messages.push(...shellMessages(sessionID, message, agent, model))
+      parts.set(message.id, [textPart(sessionID, message.id, 0, message.command)])
+      parts.set(`${message.id}:assistant`, [shellPart(sessionID, message)])
+      parentID = undefined
+      return
+    }
+    if (message.type === "assistant") {
+      agent = message.agent
+      model = message.model
+      if (!parentID) return
+      const parent = messages.findLast((item) => item.id === parentID)
+      if (parent?.role === "user") {
+        parent.agent = message.agent
+        parent.model = {
+          providerID: message.model.providerID,
+          modelID: message.model.id,
+          variant: message.model.variant,
+        }
+      }
+      messages.push(assistantMessage(sessionID, parentID, message))
+      parts.set(message.id, assistantParts(sessionID, message))
+      return
+    }
+    if (message.type !== "compaction" || !parentID) return
+    parts.set(parentID, [
+      ...(parts.get(parentID) ?? []),
+      {
+        id: `${message.id}:compaction`,
+        sessionID,
+        messageID: parentID,
+        type: "compaction",
+        auto: message.reason === "auto",
+      },
+    ])
+  })
+
+  return { messages, parts }
+}
+
+function shellMessages(
+  sessionID: string,
+  message: SessionMessageShell,
+  agent: string,
+  model: { id: string; providerID: string; variant?: string },
+): [UserMessage, AssistantMessage] {
+  return [
+    {
+      id: message.id,
+      sessionID,
+      role: "user",
+      time: { created: message.time.created },
+      agent,
+      model: { providerID: model.providerID, modelID: model.id, variant: model.variant },
+    },
+    {
+      id: `${message.id}:assistant`,
+      sessionID,
+      role: "assistant",
+      time: message.time,
+      parentID: message.id,
+      modelID: model.id,
+      providerID: model.providerID,
+      variant: model.variant,
+      mode: agent,
+      agent,
+      path: { cwd: "", root: "" },
+      cost: 0,
+      tokens: emptyTokens,
+    },
+  ]
+}
+
+function shellPart(sessionID: string, message: SessionMessageShell): ToolPart {
+  const input = { command: message.command }
+  const start = message.time.created
+  const state: ToolPart["state"] =
+    message.status === "running"
+      ? { status: "running", input, time: { start } }
+      : {
+          status: "completed",
+          input,
+          output: message.output?.output ?? "",
+          title: "Shell",
+          metadata: {
+            status: message.status,
+            exit: message.exit,
+            truncated: message.output?.truncated,
+          },
+          time: { start, end: message.time.completed ?? start },
+        }
+  return {
+    id: `${message.id}:tool`,
+    sessionID,
+    messageID: `${message.id}:assistant`,
+    type: "tool",
+    callID: message.shellID,
+    tool: "bash",
+    state,
+  }
+}
+
+export function sessionMessagePartID(messageID: string, type: "text" | "reasoning", ordinal: number) {
+  return `${messageID}:${type}:${ordinal}`
+}
+
+function userMessage(
+  sessionID: string,
+  message: SessionMessageUser,
+  agent: string,
+  model: { id: string; providerID: string; variant?: string },
+): UserMessage {
+  return {
+    id: message.id,
+    sessionID,
+    role: "user",
+    time: message.time,
+    agent,
+    model: { providerID: model.providerID, modelID: model.id, variant: model.variant },
+  }
+}
+
+function userParts(sessionID: string, message: SessionMessageUser): Part[] {
+  return [
+    textPart(sessionID, message.id, 0, message.text),
+    ...(message.files ?? []).map(
+      (file, index): FilePart => ({
+        id: `${message.id}:file:${index}`,
+        sessionID,
+        messageID: message.id,
+        type: "file",
+        mime: file.mime,
+        filename: file.name,
+        url: file.source.type === "uri" ? file.source.uri : `data:${file.mime};base64,${file.data}`,
+      }),
+    ),
+    ...(message.agents ?? []).map(
+      (item, index): Part => ({
+        id: `${message.id}:agent:${index}`,
+        sessionID,
+        messageID: message.id,
+        type: "agent",
+        name: item.name,
+        source: item.mention
+          ? { value: item.mention.text, start: item.mention.start, end: item.mention.end }
+          : undefined,
+      }),
+    ),
+  ]
+}
+
+function assistantMessage(sessionID: string, parentID: string, message: SessionMessageAssistant): AssistantMessage {
+  const error = message.error
+    ? message.error.type.toLowerCase().includes("abort") || message.error.type.toLowerCase().includes("interrupt")
+      ? { name: "MessageAbortedError" as const, data: { message: message.error.message } }
+      : { name: "UnknownError" as const, data: { message: message.error.message } }
+    : undefined
+  return {
+    id: message.id,
+    sessionID,
+    role: "assistant",
+    time: message.time,
+    error,
+    parentID,
+    modelID: message.model.id,
+    providerID: message.model.providerID,
+    variant: message.model.variant,
+    mode: message.agent,
+    agent: message.agent,
+    path: { cwd: "", root: "" },
+    cost: message.cost ?? 0,
+    tokens: message.tokens ?? emptyTokens,
+    finish: message.finish,
+  }
+}
+
+function assistantParts(sessionID: string, message: SessionMessageAssistant): Part[] {
+  const ordinals = { text: 0, reasoning: 0 }
+  return message.content.flatMap((content): Part[] => {
+    if (content.type === "text") {
+      const part = textPart(sessionID, message.id, ordinals.text++, content.text)
+      return content.text.trim() ? [part] : []
+    }
+    if (content.type === "reasoning") {
+      const part: Part = {
+        id: sessionMessagePartID(message.id, "reasoning", ordinals.reasoning++),
+        sessionID,
+        messageID: message.id,
+        type: "reasoning",
+        text: content.text,
+        metadata: content.state,
+        time: {
+          start: content.time?.created ?? message.time.created,
+          end: content.time?.completed,
+        },
+      }
+      return content.text.trim() ? [part] : []
+    }
+    return [toolPart(sessionID, message.id, content)]
+  })
+}
+
+function textPart(sessionID: string, messageID: string, ordinal: number, text: string, synthetic?: boolean): Part {
+  return {
+    id: sessionMessagePartID(messageID, "text", ordinal),
+    sessionID,
+    messageID,
+    type: "text",
+    text,
+    synthetic,
+  }
+}
+
+function toolPart(sessionID: string, messageID: string, tool: SessionMessageAssistantTool): ToolPart {
+  const start = tool.time.ran ?? tool.time.created
+  const state = (() => {
+    if (tool.state.status === "streaming") {
+      const value = Option.getOrUndefined(decodeToolInput(tool.state.input))
+      const input = normalizeToolInput(tool.name, record(value) ? value : {})
+      return { status: "pending" as const, input, raw: tool.state.input }
+    }
+    if (tool.state.status === "running") {
+      return {
+        status: "running" as const,
+        input: normalizeToolInput(tool.name, tool.state.input),
+        metadata: normalizeToolMetadata(tool.name, tool.state.structured),
+        time: { start },
+      }
+    }
+    if (tool.state.status === "error") {
+      return {
+        status: "error" as const,
+        input: normalizeToolInput(tool.name, tool.state.input),
+        error: tool.state.error.message,
+        metadata: normalizeToolMetadata(tool.name, tool.state.structured),
+        time: { start, end: tool.time.completed ?? start },
+      }
+    }
+    const attachments = tool.state.content.flatMap((item, index): FilePart[] =>
+      item.type === "file"
+        ? [
+            {
+              id: `${tool.id}:file:${index}`,
+              sessionID,
+              messageID,
+              type: "file",
+              mime: item.mime,
+              filename: item.name,
+              url: item.uri,
+            },
+          ]
+        : [],
+    )
+    return {
+      status: "completed" as const,
+      input: normalizeToolInput(tool.name, tool.state.input),
+      output: tool.state.content.flatMap((item) => (item.type === "text" ? [item.text] : [])).join("\n"),
+      title: tool.name,
+      metadata: normalizeToolMetadata(tool.name, tool.state.structured),
+      time: { start, end: tool.time.completed ?? start },
+      attachments: attachments.length ? attachments : undefined,
+    }
+  })()
+  return {
+    id: tool.id,
+    sessionID,
+    messageID,
+    type: "tool",
+    callID: tool.id,
+    tool: tool.name,
+    state,
+    metadata: { providerState: tool.providerState, providerResultState: tool.providerResultState },
+  }
+}

packages/app/src/utils/session.test.ts

@@ -0,0 +1,94 @@
+import { describe, expect, test } from "bun:test"
+import type { SessionApi, SessionInfo, SessionListInput } from "@opencode-ai/client/promise"
+import { listAllSessions, normalizeSessionInfo } from "./session"
+
+describe("normalizeSessionInfo", () => {
+  test("adapts a current session to the app session shape", () => {
+    const result = normalizeSessionInfo({
+      id: "session-1",
+      projectID: "project-1",
+      agent: "build",
+      model: { id: "gpt-5", providerID: "openai", variant: "high" },
+      cost: 0,
+      tokens: { input: 0, output: 0, reasoning: 0, cache: { read: 0, write: 0 } },
+      time: { created: 1, updated: 1 },
+      title: "New session",
+      location: { directory: "/repo/worktree", workspaceID: "workspace-1" },
+      subpath: "worktree",
+      revert: { messageID: "message-1", partID: "part-1", snapshot: "snapshot", files: [] },
+    } as SessionInfo)
+
+    expect(result).toEqual({
+      id: "session-1",
+      slug: "session-1",
+      projectID: "project-1",
+      workspaceID: "workspace-1",
+      directory: "/repo/worktree",
+      path: "worktree",
+      parentID: undefined,
+      cost: 0,
+      tokens: { input: 0, output: 0, reasoning: 0, cache: { read: 0, write: 0 } },
+      title: "New session",
+      agent: "build",
+      model: { id: "gpt-5", providerID: "openai", variant: "high" },
+      version: "",
+      time: { created: 1, updated: 1 },
+      revert: { messageID: "message-1", partID: "part-1", snapshot: "snapshot" },
+    })
+  })
+})
+
+describe("listAllSessions", () => {
+  test("loads every page in server order and retains the query", async () => {
+    const calls: SessionListInput[] = []
+    const pages = new Map<string | undefined, { data: SessionInfo[]; cursor: { next?: string } }>([
+      [undefined, { data: [sessionInfo("session-3"), sessionInfo("session-2")], cursor: { next: "next" } }],
+      ["next", { data: [sessionInfo("session-1", true)], cursor: {} }],
+    ])
+    const api = {
+      list: async (query = {}) => {
+        calls.push(query)
+        return pages.get(query.cursor) ?? { data: [], cursor: {} }
+      },
+    } satisfies Pick<SessionApi, "list">
+
+    const result = await listAllSessions(api, { directory: "/repo", order: "desc" })
+
+    expect(result.map((session) => session.id)).toEqual(["session-3", "session-2", "session-1"])
+    expect(result[2]?.time.archived).toBe(2)
+    expect(calls).toEqual([
+      { directory: "/repo", order: "desc", limit: 100, cursor: undefined },
+      { directory: "/repo", order: "desc", limit: 100, cursor: "next" },
+    ])
+  })
+
+  test("requests the terminal empty page when the server returns a next cursor", async () => {
+    const cursors: Array<string | undefined> = []
+    const api = {
+      list: async (query = {}) => {
+        cursors.push(query.cursor)
+        if (query.cursor) return { data: [], cursor: { next: "unused" } }
+        return { data: [sessionInfo("session-1")], cursor: { next: "terminal" } }
+      },
+    } satisfies Pick<SessionApi, "list">
+
+    const result = await listAllSessions(api, { directory: "/repo", limit: 25 })
+
+    expect(result.map((session) => session.id)).toEqual(["session-1"])
+    expect(cursors).toEqual([undefined, "terminal"])
+  })
+})
+
+function sessionInfo(id: string, archived = false) {
+  return {
+    id,
+    projectID: "project-1",
+    agent: "build",
+    model: { id: "model-1", providerID: "provider-1" },
+    cost: 0,
+    tokens: { input: 0, output: 0, reasoning: 0, cache: { read: 0, write: 0 } },
+    time: { created: 1, updated: 1, archived: archived ? 2 : undefined },
+    title: id,
+    location: { directory: "/repo" },
+  } as SessionInfo
+}

packages/app/src/utils/session.ts

@@ -0,0 +1,37 @@
+import type { SessionApi, SessionInfo, SessionListInput } from "@opencode-ai/client/promise"
+import type { Session } from "@opencode-ai/sdk/v2/client"
+
+export function normalizeSessionInfo(input: SessionInfo | Session): Session {
+  if (!("location" in input)) return input
+  return {
+    id: input.id,
+    slug: input.id,
+    projectID: input.projectID,
+    workspaceID: input.location.workspaceID,
+    directory: input.location.directory,
+    path: input.subpath,
+    parentID: input.parentID,
+    cost: input.cost,
+    tokens: input.tokens,
+    title: input.title,
+    agent: input.agent,
+    model: input.model,
+    version: "",
+    time: input.time,
+    revert: input.revert && {
+      messageID: input.revert.messageID,
+      partID: input.revert.partID,
+      snapshot: input.revert.snapshot,
+    },
+  }
+}
+
+export async function listAllSessions(api: Pick<SessionApi, "list">, input: Omit<SessionListInput, "cursor">) {
+  const load = async (cursor?: string): Promise<Session[]> => {
+    const result = await api.list({ ...input, limit: input.limit ?? 100, cursor })
+    const sessions = result.data.map(normalizeSessionInfo)
+    if (result.data.length === 0 || !result.cursor.next) return sessions
+    return [...sessions, ...(await load(result.cursor.next))]
+  }
+  return load()
+}

packages/desktop/src/main/server.ts

@@ -182,9 +182,9 @@ export async function spawnLocalServer(
 }
 
 export async function checkHealth(url: string, password?: string | null): Promise<boolean> {
-  let healthUrl: URL
+  let healthUrls: URL[]
   try {
-    healthUrl = new URL("/global/health", url)
+    healthUrls = [new URL("/api/health", url), new URL("/global/health", url)]
   } catch {
     return false
   }
@@ -195,16 +195,17 @@ export async function checkHealth(url: string, password?: string | null): Promis
     headers.set("authorization", `Basic ${auth}`)
   }
 
-  try {
-    const res = await fetch(healthUrl, {
-      method: "GET",
-      headers,
-      signal: AbortSignal.timeout(3000),
-    })
-    return res.ok
-  } catch {
-    return false
+  for (const healthUrl of healthUrls) {
+    try {
+      const res = await fetch(healthUrl, {
+        method: "GET",
+        headers,
+        signal: AbortSignal.timeout(3000),
+      })
+      if (res.ok) return true
+    } catch {}
   }
+  return false
 }
 
 function createSidecarEnv(): Record<string, string> {

packages/session-ui/src/components/message-part.tsx

@@ -521,6 +521,7 @@ export function getToolInfo(
       }
     }
     case "bash":
+    case "shell":
       return {
         icon: "console",
         title: i18n.t("ui.tool.shell"),
@@ -538,6 +539,7 @@ export function getToolInfo(
         title: i18n.t("ui.messagePart.title.write"),
         subtitle: input.filePath ? getFilename(input.filePath) : undefined,
       }
+    case "patch":
     case "apply_patch":
       return {
         icon: "code-lines",
@@ -729,8 +731,8 @@ export function renderable(part: PartType, showReasoningSummaries = true) {
 }
 
 function toolDefaultOpen(tool: string, shell = false, edit = false) {
-  if (tool === "bash") return shell
-  if (tool === "edit" || tool === "write" || tool === "apply_patch") return edit
+  if (tool === "bash" || tool === "shell") return shell
+  if (tool === "edit" || tool === "write" || tool === "patch" || tool === "apply_patch") return edit
 }
 
 export function partDefaultOpen(part: PartType, shell = false, edit = false) {
@@ -1506,7 +1508,7 @@ export function registerTool(input: { name: string; render?: ToolComponent }) {
 }
 
 export function getTool(name: string) {
-  return state[name]?.render
+  return state[name === "apply_patch" ? "patch" : name === "bash" ? "shell" : name]?.render
 }
 
 export const ToolRegistry = {
@@ -2101,7 +2103,7 @@ ToolRegistry.register({
 })
 
 ToolRegistry.register({
-  name: "bash",
+  name: "shell",
   render(props) {
     const i18n = useI18n()
     const pending = () => props.status === "pending" || props.status === "running"
@@ -2337,7 +2339,7 @@ ToolRegistry.register({
 })
 
 ToolRegistry.register({
-  name: "apply_patch",
+  name: "patch",
   render(props) {
     const i18n = useI18n()
     const fileComponent = useFileComponent()

packages/session-ui/src/components/tool-error-card.tsx

@@ -51,6 +51,8 @@ export function ToolErrorCard(props: ToolErrorCardProps) {
       webfetch: "ui.tool.webfetch",
       websearch: "ui.tool.websearch",
       bash: "ui.tool.shell",
+      shell: "ui.tool.shell",
+      patch: "ui.tool.patch",
       apply_patch: "ui.tool.patch",
       question: "ui.tool.questions",
     }