fix(tui): preserve burst form input

Co-authored-by: Kit Langton <kit.langton@gmail.com>

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

@@ -153,4 +153,88 @@ describe("v2 session reducer", () => {
 
     expect(result).toMatchObject({ sessionID: "ses_1", missing: "msg_user", touched: [] })
   })
+
+  test("removes cancelled input from the pending promotion fold", () => {
+    const reducer = createV2SessionReducer()
+    reducer.reduce(
+      [],
+      event({
+        ...base,
+        id: "evt_admitted",
+        type: "session.input.admitted",
+        data: {
+          sessionID: "ses_1",
+          inputID: "msg_user",
+          input: { type: "user", delivery: "queue", data: { text: "cancel me" } },
+        },
+      }),
+    )
+    reducer.reduce(
+      [],
+      event({
+        ...base,
+        id: "evt_cancelled",
+        type: "session.input.cancelled",
+        data: { sessionID: "ses_1", inputID: "msg_user" },
+      }),
+    )
+    const result = reducer.reduce(
+      [],
+      event({
+        ...base,
+        id: "evt_promoted",
+        type: "session.input.promoted",
+        data: { sessionID: "ses_1", inputID: "msg_user" },
+      }),
+    )
+
+    expect(result).toMatchObject({ missing: "msg_user" })
+  })
+
+  test("keeps steered input available to the promotion fold", () => {
+    const reducer = createV2SessionReducer()
+    reducer.reduce(
+      [],
+      event({
+        ...base,
+        id: "evt_admitted",
+        type: "session.input.admitted",
+        data: {
+          sessionID: "ses_1",
+          inputID: "msg_user",
+          input: { type: "user", delivery: "queue", data: { text: "steer me" } },
+        },
+      }),
+    )
+    reducer.reduce(
+      [],
+      event({
+        ...base,
+        id: "evt_steered",
+        type: "session.input.steered",
+        data: { sessionID: "ses_1", inputID: "msg_user" },
+      }),
+    )
+    reducer.reduce(
+      [],
+      event({
+        ...base,
+        id: "evt_queued",
+        type: "session.input.queued",
+        data: { sessionID: "ses_1", inputID: "msg_user" },
+      }),
+    )
+
+    const result = reducer.reduce(
+      [],
+      event({
+        ...base,
+        id: "evt_promoted",
+        type: "session.input.promoted",
+        data: { sessionID: "ses_1", inputID: "msg_user" },
+      }),
+    )
+
+    expect(result?.messages).toMatchObject([{ id: "msg_user", type: "user", text: "steer me" }])
+  })
 })

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

@@ -29,6 +29,9 @@ export function createV2SessionReducer() {
       case "session.input.admitted":
         pending.set(key(sessionID, event.data.inputID), event.data.input)
         return result([...source])
+      case "session.input.cancelled":
+        pending.delete(key(sessionID, event.data.inputID))
+        return
       case "session.input.promoted": {
         const input = pending.get(key(sessionID, event.data.inputID))
         pending.delete(key(sessionID, event.data.inputID))

packages/client/src/effect/api/api.ts

@@ -263,38 +263,52 @@ export type Endpoint5_23Input = { readonly sessionID: Session.ID }
 export type Endpoint5_23Output = ReadonlyArray<SessionPending.Info>
 export type SessionPendingListOperation<E = never> = (input: Endpoint5_23Input) => Effect.Effect<Endpoint5_23Output, E>
 
-export type Endpoint5_24Input = { readonly sessionID: Session.ID }
-export type Endpoint5_24Output = ReadonlyArray<InstructionEntry.Info>
-export type SessionInstructionsEntryListOperation<E = never> = (
+export type Endpoint5_24Input = { readonly sessionID: Session.ID; readonly inputID: SessionMessage.ID }
+export type Endpoint5_24Output = void
+export type SessionPendingCancelOperation<E = never> = (
   input: Endpoint5_24Input,
 ) => Effect.Effect<Endpoint5_24Output, E>
 
-export type Endpoint5_25Input = {
+export type Endpoint5_25Input = { readonly sessionID: Session.ID; readonly inputID: SessionMessage.ID }
+export type Endpoint5_25Output = void
+export type SessionPendingSteerOperation<E = never> = (input: Endpoint5_25Input) => Effect.Effect<Endpoint5_25Output, E>
+
+export type Endpoint5_26Input = { readonly sessionID: Session.ID; readonly inputID: SessionMessage.ID }
+export type Endpoint5_26Output = void
+export type SessionPendingQueueOperation<E = never> = (input: Endpoint5_26Input) => Effect.Effect<Endpoint5_26Output, E>
+
+export type Endpoint5_27Input = { readonly sessionID: Session.ID }
+export type Endpoint5_27Output = ReadonlyArray<InstructionEntry.Info>
+export type SessionInstructionsEntryListOperation<E = never> = (
+  input: Endpoint5_27Input,
+) => Effect.Effect<Endpoint5_27Output, E>
+
+export type Endpoint5_28Input = {
   readonly sessionID: Session.ID
   readonly key: InstructionEntry.Key
   readonly value: Schema.Json
 }
-export type Endpoint5_25Output = void
+export type Endpoint5_28Output = void
 export type SessionInstructionsEntryPutOperation<E = never> = (
-  input: Endpoint5_25Input,
-) => Effect.Effect<Endpoint5_25Output, E>
+  input: Endpoint5_28Input,
+) => Effect.Effect<Endpoint5_28Output, E>
 
-export type Endpoint5_26Input = { readonly sessionID: Session.ID; readonly key: InstructionEntry.Key }
-export type Endpoint5_26Output = void
+export type Endpoint5_29Input = { readonly sessionID: Session.ID; readonly key: InstructionEntry.Key }
+export type Endpoint5_29Output = void
 export type SessionInstructionsEntryRemoveOperation<E = never> = (
-  input: Endpoint5_26Input,
-) => Effect.Effect<Endpoint5_26Output, E>
+  input: Endpoint5_29Input,
+) => Effect.Effect<Endpoint5_29Output, E>
 
-export type Endpoint5_27Input = { readonly sessionID: Session.ID; readonly prompt: string }
-export type Endpoint5_27Output = { readonly text: string }
-export type SessionGenerateOperation<E = never> = (input: Endpoint5_27Input) => Effect.Effect<Endpoint5_27Output, E>
+export type Endpoint5_30Input = { readonly sessionID: Session.ID; readonly prompt: string }
+export type Endpoint5_30Output = { readonly text: string }
+export type SessionGenerateOperation<E = never> = (input: Endpoint5_30Input) => Effect.Effect<Endpoint5_30Output, E>
 
-export type Endpoint5_28Input = {
+export type Endpoint5_31Input = {
   readonly sessionID: Session.ID
   readonly after?: Event.Seq | undefined
   readonly follow?: boolean | undefined
 }
-export type Endpoint5_28Output =
+export type Endpoint5_31Output =
   | (
       | {
           readonly id: Event.ID
@@ -404,6 +418,33 @@ export type Endpoint5_28Output =
             readonly input: SessionPending.Message
           }
         }
+      | {
+          readonly id: Event.ID
+          readonly created: DateTime.Utc
+          readonly metadata?: { readonly [x: string]: unknown } | undefined
+          readonly type: "session.input.cancelled"
+          readonly durable: { readonly aggregateID: string; readonly seq: Event.Seq; readonly version: Event.Version }
+          readonly location?: Location.Ref | undefined
+          readonly data: { readonly sessionID: Session.ID; readonly inputID: SessionMessage.ID }
+        }
+      | {
+          readonly id: Event.ID
+          readonly created: DateTime.Utc
+          readonly metadata?: { readonly [x: string]: unknown } | undefined
+          readonly type: "session.input.steered"
+          readonly durable: { readonly aggregateID: string; readonly seq: Event.Seq; readonly version: Event.Version }
+          readonly location?: Location.Ref | undefined
+          readonly data: { readonly sessionID: Session.ID; readonly inputID: SessionMessage.ID }
+        }
+      | {
+          readonly id: Event.ID
+          readonly created: DateTime.Utc
+          readonly metadata?: { readonly [x: string]: unknown } | undefined
+          readonly type: "session.input.queued"
+          readonly durable: { readonly aggregateID: string; readonly seq: Event.Seq; readonly version: Event.Version }
+          readonly location?: Location.Ref | undefined
+          readonly data: { readonly sessionID: Session.ID; readonly inputID: SessionMessage.ID }
+        }
       | {
           readonly id: Event.ID
           readonly created: DateTime.Utc
@@ -862,19 +903,19 @@ export type Endpoint5_28Output =
         }
     )
   | EventLog.Synced
-export type SessionLogOperation<E = never> = (input: Endpoint5_28Input) => Stream.Stream<Endpoint5_28Output, E>
+export type SessionLogOperation<E = never> = (input: Endpoint5_31Input) => Stream.Stream<Endpoint5_31Output, E>
 
-export type Endpoint5_29Input = { readonly sessionID: Session.ID }
-export type Endpoint5_29Output = void
-export type SessionInterruptOperation<E = never> = (input: Endpoint5_29Input) => Effect.Effect<Endpoint5_29Output, E>
+export type Endpoint5_32Input = { readonly sessionID: Session.ID }
+export type Endpoint5_32Output = void
+export type SessionInterruptOperation<E = never> = (input: Endpoint5_32Input) => Effect.Effect<Endpoint5_32Output, E>
 
-export type Endpoint5_30Input = { readonly sessionID: Session.ID }
-export type Endpoint5_30Output = void
-export type SessionBackgroundOperation<E = never> = (input: Endpoint5_30Input) => Effect.Effect<Endpoint5_30Output, E>
+export type Endpoint5_33Input = { readonly sessionID: Session.ID }
+export type Endpoint5_33Output = void
+export type SessionBackgroundOperation<E = never> = (input: Endpoint5_33Input) => Effect.Effect<Endpoint5_33Output, E>
 
-export type Endpoint5_31Input = { readonly sessionID: Session.ID; readonly messageID: SessionMessage.ID }
-export type Endpoint5_31Output = SessionMessage.Info
-export type SessionMessageOperation<E = never> = (input: Endpoint5_31Input) => Effect.Effect<Endpoint5_31Output, E>
+export type Endpoint5_34Input = { readonly sessionID: Session.ID; readonly messageID: SessionMessage.ID }
+export type Endpoint5_34Output = SessionMessage.Info
+export type SessionMessageOperation<E = never> = (input: Endpoint5_34Input) => Effect.Effect<Endpoint5_34Output, E>
 
 export interface SessionApi<E = never> {
   readonly list: SessionListOperation<E>
@@ -902,7 +943,12 @@ export interface SessionApi<E = never> {
     readonly commit: SessionRevertCommitOperation<E>
   }
   readonly context: SessionContextOperation<E>
-  readonly pending: { readonly list: SessionPendingListOperation<E> }
+  readonly pending: {
+    readonly list: SessionPendingListOperation<E>
+    readonly cancel: SessionPendingCancelOperation<E>
+    readonly steer: SessionPendingSteerOperation<E>
+    readonly queue: SessionPendingQueueOperation<E>
+  }
   readonly instructions: {
     readonly entry: {
       readonly list: SessionInstructionsEntryListOperation<E>

packages/client/src/effect/generated/client.ts

@@ -80,6 +80,12 @@ import type {
   Endpoint5_30Output,
   Endpoint5_31Input,
   Endpoint5_31Output,
+  Endpoint5_32Input,
+  Endpoint5_32Output,
+  Endpoint5_33Input,
+  Endpoint5_33Output,
+  Endpoint5_34Input,
+  Endpoint5_34Output,
   Endpoint6_0Input,
   Endpoint6_0Output,
   Endpoint7_0Input,
@@ -523,37 +529,58 @@ const Endpoint5_23 = (raw: RawClient["server.session"]) => (input: Endpoint5_23I
 
 const Endpoint5_24 = (raw: RawClient["server.session"]) => (input: Endpoint5_24Input) =>
   preserveEffect<Endpoint5_24Output>()(
-    raw["session.instructions.entry.list"]({ params: { sessionID: input["sessionID"] } }).pipe(
+    raw["session.pending.cancel"]({ params: { sessionID: input["sessionID"], inputID: input["inputID"] } }).pipe(
       Effect.mapError(mapClientError),
-      Effect.map((value) => value.data),
     ),
   )
 
 const Endpoint5_25 = (raw: RawClient["server.session"]) => (input: Endpoint5_25Input) =>
   preserveEffect<Endpoint5_25Output>()(
-    raw["session.instructions.entry.put"]({
-      params: { sessionID: input["sessionID"], key: input["key"] },
-      payload: { value: input["value"] },
-    }).pipe(Effect.mapError(mapClientError)),
+    raw["session.pending.steer"]({ params: { sessionID: input["sessionID"], inputID: input["inputID"] } }).pipe(
+      Effect.mapError(mapClientError),
+    ),
   )
 
 const Endpoint5_26 = (raw: RawClient["server.session"]) => (input: Endpoint5_26Input) =>
   preserveEffect<Endpoint5_26Output>()(
-    raw["session.instructions.entry.remove"]({ params: { sessionID: input["sessionID"], key: input["key"] } }).pipe(
+    raw["session.pending.queue"]({ params: { sessionID: input["sessionID"], inputID: input["inputID"] } }).pipe(
       Effect.mapError(mapClientError),
     ),
   )
 
 const Endpoint5_27 = (raw: RawClient["server.session"]) => (input: Endpoint5_27Input) =>
   preserveEffect<Endpoint5_27Output>()(
-    raw["session.generate"]({ params: { sessionID: input["sessionID"] }, payload: { prompt: input["prompt"] } }).pipe(
+    raw["session.instructions.entry.list"]({ params: { sessionID: input["sessionID"] } }).pipe(
       Effect.mapError(mapClientError),
       Effect.map((value) => value.data),
     ),
   )
 
 const Endpoint5_28 = (raw: RawClient["server.session"]) => (input: Endpoint5_28Input) =>
-  preserveStream<Endpoint5_28Output>()(
+  preserveEffect<Endpoint5_28Output>()(
+    raw["session.instructions.entry.put"]({
+      params: { sessionID: input["sessionID"], key: input["key"] },
+      payload: { value: input["value"] },
+    }).pipe(Effect.mapError(mapClientError)),
+  )
+
+const Endpoint5_29 = (raw: RawClient["server.session"]) => (input: Endpoint5_29Input) =>
+  preserveEffect<Endpoint5_29Output>()(
+    raw["session.instructions.entry.remove"]({ params: { sessionID: input["sessionID"], key: input["key"] } }).pipe(
+      Effect.mapError(mapClientError),
+    ),
+  )
+
+const Endpoint5_30 = (raw: RawClient["server.session"]) => (input: Endpoint5_30Input) =>
+  preserveEffect<Endpoint5_30Output>()(
+    raw["session.generate"]({ params: { sessionID: input["sessionID"] }, payload: { prompt: input["prompt"] } }).pipe(
+      Effect.mapError(mapClientError),
+      Effect.map((value) => value.data),
+    ),
+  )
+
+const Endpoint5_31 = (raw: RawClient["server.session"]) => (input: Endpoint5_31Input) =>
+  preserveStream<Endpoint5_31Output>()(
     Stream.unwrap(
       raw["session.log"]({
         params: { sessionID: input["sessionID"] },
@@ -565,18 +592,18 @@ const Endpoint5_28 = (raw: RawClient["server.session"]) => (input: Endpoint5_28I
     ),
   )
 
-const Endpoint5_29 = (raw: RawClient["server.session"]) => (input: Endpoint5_29Input) =>
-  preserveEffect<Endpoint5_29Output>()(
+const Endpoint5_32 = (raw: RawClient["server.session"]) => (input: Endpoint5_32Input) =>
+  preserveEffect<Endpoint5_32Output>()(
     raw["session.interrupt"]({ params: { sessionID: input["sessionID"] } }).pipe(Effect.mapError(mapClientError)),
   )
 
-const Endpoint5_30 = (raw: RawClient["server.session"]) => (input: Endpoint5_30Input) =>
-  preserveEffect<Endpoint5_30Output>()(
+const Endpoint5_33 = (raw: RawClient["server.session"]) => (input: Endpoint5_33Input) =>
+  preserveEffect<Endpoint5_33Output>()(
     raw["session.background"]({ params: { sessionID: input["sessionID"] } }).pipe(Effect.mapError(mapClientError)),
   )
 
-const Endpoint5_31 = (raw: RawClient["server.session"]) => (input: Endpoint5_31Input) =>
-  preserveEffect<Endpoint5_31Output>()(
+const Endpoint5_34 = (raw: RawClient["server.session"]) => (input: Endpoint5_34Input) =>
+  preserveEffect<Endpoint5_34Output>()(
     raw["session.message"]({ params: { sessionID: input["sessionID"], messageID: input["messageID"] } }).pipe(
       Effect.mapError(mapClientError),
       Effect.map((value) => value.data),
@@ -605,13 +632,13 @@ const adaptGroup5 = (raw: RawClient["server.session"]) => ({
   wait: Endpoint5_18(raw),
   revert: { stage: Endpoint5_19(raw), clear: Endpoint5_20(raw), commit: Endpoint5_21(raw) },
   context: Endpoint5_22(raw),
-  pending: { list: Endpoint5_23(raw) },
-  instructions: { entry: { list: Endpoint5_24(raw), put: Endpoint5_25(raw), remove: Endpoint5_26(raw) } },
-  generate: Endpoint5_27(raw),
-  log: Endpoint5_28(raw),
-  interrupt: Endpoint5_29(raw),
-  background: Endpoint5_30(raw),
-  message: Endpoint5_31(raw),
+  pending: { list: Endpoint5_23(raw), cancel: Endpoint5_24(raw), steer: Endpoint5_25(raw), queue: Endpoint5_26(raw) },
+  instructions: { entry: { list: Endpoint5_27(raw), put: Endpoint5_28(raw), remove: Endpoint5_29(raw) } },
+  generate: Endpoint5_30(raw),
+  log: Endpoint5_31(raw),
+  interrupt: Endpoint5_32(raw),
+  background: Endpoint5_33(raw),
+  message: Endpoint5_34(raw),
 })
 
 const Endpoint6_0 = (raw: RawClient["server.message"]) => (input: Endpoint6_0Input) =>

packages/client/src/promise/generated/client.ts

@@ -58,6 +58,12 @@ import type {
   SessionContextOutput,
   SessionPendingListInput,
   SessionPendingListOutput,
+  SessionPendingCancelInput,
+  SessionPendingCancelOutput,
+  SessionPendingSteerInput,
+  SessionPendingSteerOutput,
+  SessionPendingQueueInput,
+  SessionPendingQueueOutput,
   SessionInstructionsEntryListInput,
   SessionInstructionsEntryListOutput,
   SessionInstructionsEntryPutInput,
@@ -766,6 +772,39 @@ export function make(options: ClientOptions) {
             },
             requestOptions,
           ).then((value) => value.data),
+        cancel: (input: SessionPendingCancelInput, requestOptions?: RequestOptions) =>
+          request<SessionPendingCancelOutput>(
+            {
+              method: "DELETE",
+              path: `/api/session/${encodeURIComponent(input.sessionID)}/pending/${encodeURIComponent(input.inputID)}`,
+              successStatus: 204,
+              declaredStatuses: [409, 404, 401, 400],
+              empty: true,
+            },
+            requestOptions,
+          ),
+        steer: (input: SessionPendingSteerInput, requestOptions?: RequestOptions) =>
+          request<SessionPendingSteerOutput>(
+            {
+              method: "POST",
+              path: `/api/session/${encodeURIComponent(input.sessionID)}/pending/${encodeURIComponent(input.inputID)}/steer`,
+              successStatus: 204,
+              declaredStatuses: [409, 404, 401, 400],
+              empty: true,
+            },
+            requestOptions,
+          ),
+        queue: (input: SessionPendingQueueInput, requestOptions?: RequestOptions) =>
+          request<SessionPendingQueueOutput>(
+            {
+              method: "POST",
+              path: `/api/session/${encodeURIComponent(input.sessionID)}/pending/${encodeURIComponent(input.inputID)}/queue`,
+              successStatus: 204,
+              declaredStatuses: [409, 404, 401, 400],
+              empty: true,
+            },
+            requestOptions,
+          ),
       },
       instructions: {
         entry: {

packages/client/src/promise/generated/types.ts

@@ -502,6 +502,36 @@ export type SessionInputPromoted = {
   data: { sessionID: string; inputID: string }
 }
 
+export type SessionInputCancelled = {
+  id: string
+  created: number
+  metadata?: { [x: string]: any }
+  type: "session.input.cancelled"
+  durable: { aggregateID: string; seq: number; version: 1 }
+  location?: LocationRef
+  data: { sessionID: string; inputID: string }
+}
+
+export type SessionInputSteered = {
+  id: string
+  created: number
+  metadata?: { [x: string]: any }
+  type: "session.input.steered"
+  durable: { aggregateID: string; seq: number; version: 1 }
+  location?: LocationRef
+  data: { sessionID: string; inputID: string }
+}
+
+export type SessionInputQueued = {
+  id: string
+  created: number
+  metadata?: { [x: string]: any }
+  type: "session.input.queued"
+  durable: { aggregateID: string; seq: number; version: 1 }
+  location?: LocationRef
+  data: { sessionID: string; inputID: string }
+}
+
 export type SessionExecutionStarted = {
   id: string
   created: number
@@ -1970,6 +2000,9 @@ export type SessionEventDurable =
   | SessionForked
   | SessionInputPromoted
   | SessionInputAdmitted
+  | SessionInputCancelled
+  | SessionInputSteered
+  | SessionInputQueued
   | SessionExecutionStarted
   | SessionExecutionSucceeded
   | SessionExecutionFailed
@@ -2024,6 +2057,9 @@ export type V2Event =
   | SessionForked
   | SessionInputPromoted
   | SessionInputAdmitted
+  | SessionInputCancelled
+  | SessionInputSteered
+  | SessionInputQueued
   | SessionExecutionStarted
   | SessionExecutionSucceeded
   | SessionExecutionFailed
@@ -3689,6 +3725,27 @@ export type SessionPendingListInput = { readonly sessionID: { readonly sessionID
 
 export type SessionPendingListOutput = { data: Array<SessionPendingInfo> }["data"]
 
+export type SessionPendingCancelInput = {
+  readonly sessionID: { readonly sessionID: string; readonly inputID: string }["sessionID"]
+  readonly inputID: { readonly sessionID: string; readonly inputID: string }["inputID"]
+}
+
+export type SessionPendingCancelOutput = void
+
+export type SessionPendingSteerInput = {
+  readonly sessionID: { readonly sessionID: string; readonly inputID: string }["sessionID"]
+  readonly inputID: { readonly sessionID: string; readonly inputID: string }["inputID"]
+}
+
+export type SessionPendingSteerOutput = void
+
+export type SessionPendingQueueInput = {
+  readonly sessionID: { readonly sessionID: string; readonly inputID: string }["sessionID"]
+  readonly inputID: { readonly sessionID: string; readonly inputID: string }["inputID"]
+}
+
+export type SessionPendingQueueOutput = void
+
 export type SessionInstructionsEntryListInput = { readonly sessionID: { readonly sessionID: string }["sessionID"] }
 
 export type SessionInstructionsEntryListOutput = { data: Array<InstructionEntryInfo> }["data"]

packages/client/test/contract-identity.test.ts

@@ -19,7 +19,7 @@ test("effect entrypoint exposes canonical Schema contracts", () => {
 test("generated Effect API names canonical and composed outputs", async () => {
   const source = await Bun.file(new URL("../src/effect/api/api.ts", import.meta.url)).text()
 
-  expect(source).toContain("export type Endpoint5_3Output = Session.Info")
+  expect(source).toContain("export type Endpoint5_5Output = Session.Info")
   expect(source).toContain("export type Endpoint19_0Output = OpenCodeEvent")
   expect(source).not.toContain("HttpApiClient.ForApi")
 })

packages/client/test/promise.test.ts

@@ -32,6 +32,7 @@ test("exposes every standard HTTP API group", () => {
     "projectCopy",
     "vcs",
     "debug",
+    "migration",
     "websearch",
     "config",
   ])
@@ -356,6 +357,28 @@ test("session.pending.list uses the public HTTP contract", async () => {
   expect(requests).toEqual([{ method: "GET", url: "http://localhost:3000/api/session/ses_test/pending" }])
 })
 
+test("session.pending mutations use the public HTTP contract", async () => {
+  const requests: Array<{ method: string; url: string }> = []
+  const client = OpenCode.make({
+    baseUrl: "http://localhost:3000",
+    fetch: async (input, init) => {
+      const request = input instanceof Request ? input : new Request(input, init)
+      requests.push({ method: request.method, url: request.url })
+      return new Response(null, { status: 204 })
+    },
+  })
+
+  await client.session.pending.cancel({ sessionID: "ses_test", inputID: "msg_cancel" })
+  await client.session.pending.steer({ sessionID: "ses_test", inputID: "msg_steer" })
+  await client.session.pending.queue({ sessionID: "ses_test", inputID: "msg_queue" })
+
+  expect(requests).toEqual([
+    { method: "DELETE", url: "http://localhost:3000/api/session/ses_test/pending/msg_cancel" },
+    { method: "POST", url: "http://localhost:3000/api/session/ses_test/pending/msg_steer/steer" },
+    { method: "POST", url: "http://localhost:3000/api/session/ses_test/pending/msg_queue/queue" },
+  ])
+})
+
 test("event.subscribe exposes the Promise event stream wire projection", async () => {
   const client = OpenCode.make({
     baseUrl: "http://localhost:3000",

packages/core/package.json

@@ -17,6 +17,7 @@
     "opencode": "./bin/opencode"
   },
   "exports": {
+    "./environment": "./src/environment/index.ts",
     "./session/runner": "./src/session/runner/index.ts",
     "./instructions": "./src/instructions/index.ts",
     "./*": "./src/*.ts"

packages/core/src/environment/driver.ts

@@ -0,0 +1,9 @@
+import type { ChildProcessSpawner } from "effect/unstable/process/ChildProcessSpawner"
+import type { FilesImpl } from "./files"
+
+export interface Driver {
+  readonly spawner: ChildProcessSpawner["Service"]
+  readonly overrides?: Partial<FilesImpl>
+}
+
+export * as EnvironmentDriver from "./driver"

packages/core/src/environment/exec-defaults.ts

@@ -0,0 +1,192 @@
+import { Effect, Stream } from "effect"
+import { ChildProcess } from "effect/unstable/process"
+import type { ChildProcessSpawner } from "effect/unstable/process/ChildProcessSpawner"
+import { collectStream } from "@opencode-ai/util/process"
+import { Failed, NotFound, WrongKind, type FileInfo, type FileType, type FilesImpl } from "./files"
+
+/**
+ * Files derived from spawning processes: one process per intent, "$1" is
+ * always the target path. Scripts report classification through an exit-code
+ * protocol (44/45/46) so failures never require parsing localized error text;
+ * LC_ALL=C pins the one stderr match that remains. Requires GNU coreutils and
+ * findutils in the target image — BSD and busybox userlands will not work.
+ * Malformed output from these scripts is our own bug and dies as a defect.
+ */
+
+const MAX_DATA_BYTES = 64 * 1024 * 1024
+const MAX_ERROR_BYTES = 64 * 1024
+const NOT_FOUND = 44
+const WRONG_KIND = 45
+const FAILED = 46
+const TAB = "\t"
+
+const loadMetadata = (flags = "") => `
+metadata=$(stat ${flags} -c '%F${TAB}%s${TAB}%Y' -- "$1" 2>&1) || {
+  case "$metadata" in
+    *'No such file or directory'*|*'Not a directory'*) exit ${NOT_FOUND} ;;
+    *) printf '%s' "$metadata" >&2; exit ${FAILED} ;;
+  esac
+}
+`
+
+const statScript = `
+${loadMetadata()}
+printf '%s\n' "$metadata"
+`
+
+const readScript = `
+${loadMetadata("-L")}
+kind=\${metadata%%${TAB}*}
+if [ "$kind" != 'regular file' ] && [ "$kind" != 'regular empty file' ]; then
+  printf '%s' "$kind" >&2
+  exit ${WRONG_KIND}
+fi
+printf '%s\n' "$metadata"
+if [ "$2" = range ]; then
+  dd if="$1" iflag=skip_bytes,count_bytes skip="$3" count="$4" status=none
+else
+  cat -- "$1"
+fi
+`
+
+const listScript = `
+${loadMetadata()}
+kind=\${metadata%%${TAB}*}
+if [ "$kind" != directory ]; then
+  printf '%s' "$kind" >&2
+  exit ${WRONG_KIND}
+fi
+find "$1" -mindepth 1 -maxdepth 1 -printf '%y\\0%f\\0'
+`
+
+const moveScript = `
+${loadMetadata()}
+mv -- "$1" "$2"
+`
+
+interface Result {
+  readonly exitCode: number
+  readonly stdout: Uint8Array
+  readonly stderr: Uint8Array
+}
+
+export const execDefaults = (spawner: ChildProcessSpawner["Service"]): FilesImpl => {
+  const run = (
+    path: string,
+    script: string,
+    args: ReadonlyArray<string> = [],
+    stdin?: Uint8Array,
+  ): Effect.Effect<Result, Failed> =>
+    Effect.scoped(
+      Effect.gen(function* () {
+        const command = ChildProcess.make("sh", ["-c", script, "sh", path, ...args], {
+          env: { LC_ALL: "C" },
+          extendEnv: true,
+          stdin: stdin === undefined ? undefined : Stream.make(stdin),
+        })
+        const handle = yield* spawner.spawn(command).pipe(Effect.mapError((cause) => new Failed({ path, cause })))
+        const [stdout, stderr, exitCode] = yield* Effect.all(
+          [
+            collectStream(handle.stdout, MAX_DATA_BYTES),
+            collectStream(handle.stderr, MAX_ERROR_BYTES),
+            handle.exitCode,
+          ],
+          { concurrency: "unbounded" },
+        ).pipe(Effect.mapError((cause) => new Failed({ path, cause })))
+        if (stdout.truncated || stderr.truncated) {
+          return yield* new Failed({ path, cause: new Error("Process output exceeded its collection limit") })
+        }
+        return { exitCode, stdout: stdout.buffer, stderr: stderr.buffer }
+      }),
+    )
+
+  const classify = <A>(
+    path: string,
+    result: Result,
+    success: (stdout: Uint8Array) => A,
+  ): Effect.Effect<A, NotFound | WrongKind | Failed> => {
+    if (result.exitCode === 0) return Effect.sync(() => success(result.stdout))
+    if (result.exitCode === NOT_FOUND) return Effect.fail(new NotFound({ path }))
+    if (result.exitCode === WRONG_KIND) {
+      return Effect.fail(new WrongKind({ path, actual: parseType(new TextDecoder().decode(result.stderr)) }))
+    }
+    return Effect.fail(processFailure(path, result))
+  }
+
+  const complete = (path: string, result: Result) =>
+    result.exitCode === 0 ? Effect.void : Effect.fail(processFailure(path, result))
+
+  return {
+    stat: (path) => run(path, statScript).pipe(Effect.flatMap((result) => classifyPlain(path, result, parseInfo))),
+    read: (path, range) =>
+      run(
+        path,
+        readScript,
+        range === undefined ? ["whole"] : ["range", String(range.offset), String(range.length)],
+      ).pipe(
+        Effect.flatMap((result) =>
+          classify(path, result, (stdout) => {
+            const newline = stdout.indexOf(10)
+            if (newline < 0) throw new Error("Missing read metadata header")
+            return {
+              info: parseInfo(stdout.slice(0, newline)),
+              bytes: stdout.slice(newline + 1),
+            }
+          }),
+        ),
+      ),
+    write: (path, bytes) =>
+      run(path, `mkdir -p "$(dirname "$1")" && cat > "$1"`, [], bytes).pipe(
+        Effect.flatMap((result) => complete(path, result)),
+      ),
+    list: (path) => run(path, listScript).pipe(Effect.flatMap((result) => classify(path, result, parseList))),
+    remove: (path) => run(path, `rm -rf -- "$1"`).pipe(Effect.flatMap((result) => complete(path, result))),
+    move: (from, to) =>
+      run(from, moveScript, [to]).pipe(Effect.flatMap((result) => classifyPlain(from, result, () => undefined))),
+    mkdir: (path) => run(path, `mkdir -p -- "$1"`).pipe(Effect.flatMap((result) => complete(path, result))),
+  }
+}
+
+/** `classify` for scripts whose protocol never reports WrongKind. */
+const classifyPlain = <A>(
+  path: string,
+  result: Result,
+  success: (stdout: Uint8Array) => A,
+): Effect.Effect<A, NotFound | Failed> => {
+  if (result.exitCode === 0) return Effect.sync(() => success(result.stdout))
+  if (result.exitCode === NOT_FOUND) return Effect.fail(new NotFound({ path }))
+  return Effect.fail(processFailure(path, result))
+}
+
+const processFailure = (path: string, result: Result) =>
+  new Failed({
+    path,
+    cause: new Error(new TextDecoder().decode(result.stderr).trim() || `Process exited with code ${result.exitCode}`),
+  })
+
+const parseInfo = (bytes: Uint8Array): FileInfo => {
+  const [rawType, rawSize, rawMtime] = new TextDecoder().decode(bytes).trim().split(TAB)
+  const size = Number(rawSize)
+  const mtimeMs = Number(rawMtime) * 1_000
+  if (!rawType || !Number.isFinite(size) || !Number.isFinite(mtimeMs)) throw new Error("Invalid stat output")
+  return { type: parseType(rawType), size, mtimeMs }
+}
+
+const parseType = (value: string): FileType => {
+  if (value === "regular file" || value === "regular empty file" || value === "f") return "file"
+  if (value === "directory" || value === "d") return "directory"
+  if (value === "symbolic link" || value === "l") return "symlink"
+  return "other"
+}
+
+const parseList = (bytes: Uint8Array) => {
+  const fields = new TextDecoder().decode(bytes).split("\0")
+  fields.pop()
+  if (fields.length % 2 !== 0) throw new Error("Invalid find output")
+  return Array.from({ length: fields.length / 2 }, (_, index) => ({
+    name: fields[index * 2 + 1],
+    type: parseType(fields[index * 2]),
+  }))
+}
+
+export * as EnvironmentExecDefaults from "./exec-defaults"

packages/core/src/environment/files.ts

@@ -0,0 +1,53 @@
+import { Effect, Schema } from "effect"
+
+export const FileType = Schema.Literals(["file", "directory", "symlink", "other"])
+export type FileType = typeof FileType.Type
+
+export interface FileInfo {
+  readonly type: FileType
+  readonly size: number
+  readonly mtimeMs: number
+}
+
+export interface DirEntry {
+  readonly name: string
+  readonly type: FileType
+}
+
+export class NotFound extends Schema.TaggedErrorClass<NotFound>()("Environment.NotFound", {
+  path: Schema.String,
+}) {}
+
+export class WrongKind extends Schema.TaggedErrorClass<WrongKind>()("Environment.WrongKind", {
+  path: Schema.String,
+  actual: FileType,
+}) {}
+
+export class Failed extends Schema.TaggedErrorClass<Failed>()("Environment.Failed", {
+  path: Schema.String,
+  cause: Schema.Defect(),
+}) {}
+
+export interface FilesImpl {
+  /**
+   * Reads a file, following a final symlink so `info` describes the target whose bytes are returned.
+   * The process-backed default caps collected output at 64 MiB; larger whole-file reads fail with
+   * `Failed`, so callers must use ranges for larger files.
+   */
+  readonly read: (
+    path: string,
+    range?: { readonly offset: number; readonly length: number },
+  ) => Effect.Effect<{ readonly info: FileInfo; readonly bytes: Uint8Array }, NotFound | WrongKind | Failed>
+  readonly write: (path: string, bytes: Uint8Array) => Effect.Effect<void, Failed>
+  /** Describes the path entry itself, so a final symlink is reported as `symlink` rather than followed. */
+  readonly stat: (path: string) => Effect.Effect<FileInfo, NotFound | Failed>
+  /** Lists a directory entry without following a final symlink; intermediate symlinks are traversed. */
+  readonly list: (path: string) => Effect.Effect<ReadonlyArray<DirEntry>, NotFound | WrongKind | Failed>
+  readonly remove: (path: string) => Effect.Effect<void, Failed>
+  readonly move: (from: string, to: string) => Effect.Effect<void, NotFound | Failed>
+  readonly mkdir: (path: string) => Effect.Effect<void, Failed>
+}
+
+export interface Files extends FilesImpl {}
+
+export * as EnvironmentFiles from "./files"

packages/core/src/environment/index.ts

@@ -0,0 +1,24 @@
+export * as Environment from "./index"
+
+export { type Driver } from "./driver"
+export {
+  type DirEntry,
+  Failed,
+  type FileInfo,
+  type Files,
+  type FilesImpl,
+  type FileType,
+  NotFound,
+  WrongKind,
+} from "./files"
+export { execDefaults } from "./exec-defaults"
+export { makeMemoryDriver, type MemoryDriver } from "./memory"
+
+import type { Driver } from "./driver"
+import { execDefaults } from "./exec-defaults"
+import type { Files } from "./files"
+
+export const makeFiles = (driver: Driver): Files => ({
+  ...execDefaults(driver.spawner),
+  ...driver.overrides,
+})

packages/core/src/environment/memory.ts

@@ -0,0 +1,168 @@
+import path from "node:path"
+import { Effect, PlatformError } from "effect"
+import { make } from "effect/unstable/process/ChildProcessSpawner"
+import type { Driver } from "./driver"
+import { Failed, NotFound, WrongKind, type FileInfo, type FilesImpl, type FileType } from "./files"
+
+type Node =
+  | { readonly type: "file"; readonly bytes: Uint8Array; readonly mtimeMs: number }
+  | { readonly type: "directory"; readonly mtimeMs: number }
+  | { readonly type: "symlink"; readonly target: string; readonly mtimeMs: number }
+
+export interface MemoryDriver extends Driver {
+  readonly symlink: (target: string, path: string) => Effect.Effect<void, Failed>
+}
+
+export const makeMemoryDriver = (): MemoryDriver => {
+  const nodes = new Map<string, Node>([["/", { type: "directory", mtimeMs: Date.now() }]])
+  const key = (value: string) => path.posix.resolve("/", value)
+  const info = (node: Node): FileInfo => ({
+    type: node.type,
+    size:
+      node.type === "file"
+        ? node.bytes.length
+        : node.type === "symlink"
+          ? new TextEncoder().encode(node.target).length
+          : 0,
+    mtimeMs: node.mtimeMs,
+  })
+  const resolveKey = (value: string, followFinal: boolean, seen = new Set<string>()): string | undefined => {
+    const normalized = key(value)
+    const parts = normalized.split("/").filter(Boolean)
+    const base = "/"
+    const walk = (current: string, index: number): string | undefined => {
+      if (index === parts.length) return current
+      const part = parts[index]
+      const candidate = path.posix.join(current, part)
+      const node = nodes.get(candidate)
+      if (node?.type !== "symlink" || (!followFinal && index === parts.length - 1)) return walk(candidate, index + 1)
+      if (seen.has(candidate)) return undefined
+      seen.add(candidate)
+      const target = path.posix.resolve(path.posix.dirname(candidate), node.target)
+      return resolveKey(path.posix.join(target, ...parts.slice(index + 1)), followFinal, seen)
+    }
+    return walk(base, 0)
+  }
+  const lookup = (value: string) => nodes.get(resolveKey(value, false) ?? key(value))
+  const requireParent = (value: string) => {
+    const parentPath = path.posix.dirname(key(value))
+    const parent = nodes.get(resolveKey(parentPath, true) ?? parentPath)
+    if (!parent) throw new Error(`Parent directory does not exist: ${path.posix.dirname(value)}`)
+    if (parent.type !== "directory") throw new Error(`Parent is not a directory: ${path.posix.dirname(value)}`)
+  }
+  const mkdirSync = (value: string) => {
+    const target = resolveKey(value, false) ?? key(value)
+    const existing = nodes.get(target)
+    if (existing?.type === "directory") return
+    if (existing) throw new Error(`Path is not a directory: ${value}`)
+    const parent = path.posix.dirname(target)
+    if (parent !== target) mkdirSync(parent)
+    nodes.set(target, { type: "directory", mtimeMs: Date.now() })
+  }
+  const failed = (value: string, cause: unknown) => new Failed({ path: value, cause })
+  const overrides: FilesImpl = {
+    stat: (value) => {
+      const node = lookup(value)
+      return node ? Effect.succeed(info(node)) : Effect.fail(new NotFound({ path: value }))
+    },
+    read: (value, range) => {
+      const original = lookup(value)
+      if (!original) return Effect.fail(new NotFound({ path: value }))
+      if (original.type === "directory") return Effect.fail(new WrongKind({ path: value, actual: "directory" }))
+      const resolved = resolveKey(value, true)
+      const node = resolved === undefined ? undefined : nodes.get(resolved)
+      if (!node) return Effect.fail(new NotFound({ path: value }))
+      if (node.type !== "file") return Effect.fail(new WrongKind({ path: value, actual: node.type }))
+      const bytes = range === undefined ? node.bytes : node.bytes.subarray(range.offset, range.offset + range.length)
+      return Effect.succeed({ info: info(node), bytes: bytes.slice() })
+    },
+    write: (value, bytes) =>
+      Effect.try({
+        try: () => {
+          mkdirSync(path.posix.dirname(key(value)))
+          const existing = lookup(value)
+          if (existing?.type === "directory") throw new Error(`Path is a directory: ${value}`)
+          const target = existing?.type === "symlink" ? resolveKey(value, true) : resolveKey(value, false)
+          if (!target) throw new Error(`Cannot resolve symlink: ${value}`)
+          requireParent(target)
+          nodes.set(target, { type: "file", bytes: bytes.slice(), mtimeMs: Date.now() })
+        },
+        catch: (cause) => failed(value, cause),
+      }),
+    list: (value) => {
+      const target = resolveKey(value, false) ?? key(value)
+      const node = nodes.get(target)
+      if (!node) return Effect.fail(new NotFound({ path: value }))
+      if (node.type !== "directory") return Effect.fail(new WrongKind({ path: value, actual: node.type }))
+      const entries = [...nodes.entries()]
+        .filter(([entry]) => entry !== target && path.posix.dirname(entry) === target)
+        .map(([entry, child]) => ({ name: path.posix.basename(entry), type: child.type satisfies FileType }))
+        .sort((a, b) => a.name.localeCompare(b.name))
+      return Effect.succeed(entries)
+    },
+    remove: (value) =>
+      Effect.sync(() => {
+        const target = resolveKey(value, false) ?? key(value)
+        for (const entry of nodes.keys()) {
+          if (entry === target || entry.startsWith(`${target}/`)) nodes.delete(entry)
+        }
+      }),
+    move: (from, to) => {
+      const source = resolveKey(from, false) ?? key(from)
+      const node = nodes.get(source)
+      if (!node) return Effect.fail(new NotFound({ path: from }))
+      return Effect.try({
+        try: () => {
+          const requested = resolveKey(to, false) ?? key(to)
+          const destination =
+            nodes.get(requested)?.type === "directory"
+              ? path.posix.join(requested, path.posix.basename(source))
+              : requested
+          if (node.type === "directory" && destination.startsWith(`${source}/`)) {
+            throw new Error(`Cannot move a directory into itself: ${from}`)
+          }
+          const existing = nodes.get(destination)
+          if (node.type === "directory" && existing && existing.type !== "directory") {
+            throw new Error(`Cannot overwrite a non-directory with a directory: ${to}`)
+          }
+          requireParent(destination)
+          const moved = [...nodes.entries()].filter(([entry]) => entry === source || entry.startsWith(`${source}/`))
+          for (const [entry] of moved) nodes.delete(entry)
+          for (const [entry, child] of moved) nodes.set(`${destination}${entry.slice(source.length)}`, child)
+        },
+        catch: (cause) => failed(from, cause),
+      })
+    },
+    mkdir: (value) => Effect.try({ try: () => mkdirSync(value), catch: (cause) => failed(value, cause) }),
+  }
+
+  const spawner = make((command) =>
+    Effect.suspend(() => {
+      const description = command._tag === "StandardCommand" ? command.command : "pipeline"
+      return Effect.fail(
+        PlatformError.systemError({
+          _tag: "Unknown",
+          module: "EnvironmentMemory",
+          method: "spawn",
+          pathOrDescriptor: description,
+          cause: failed(description, new Error("The memory driver cannot spawn processes")),
+        }),
+      )
+    }),
+  )
+
+  return {
+    spawner,
+    overrides,
+    symlink: (target, value) =>
+      Effect.try({
+        try: () => {
+          requireParent(value)
+          nodes.set(resolveKey(value, false) ?? key(value), { type: "symlink", target, mtimeMs: Date.now() })
+        },
+        catch: (cause) => failed(value, cause),
+      }),
+  }
+}
+
+export * as EnvironmentMemory from "./memory"

packages/core/src/plugin/websearch/firecrawl.ts

@@ -0,0 +1,84 @@
+export * as WebSearchFirecrawl from "./firecrawl"
+
+import { define } from "@opencode-ai/plugin/effect/plugin"
+import { Effect, Option, Schema, Scope } from "effect"
+import { HttpClient } from "effect/unstable/http"
+import { App } from "../../app"
+import { WebSearchMcp } from "./mcp"
+
+export const endpoint = "https://mcp.firecrawl.dev/v2/mcp"
+
+const McpInput = Schema.Struct({
+  query: Schema.String,
+  limit: Schema.Number.pipe(Schema.optional),
+})
+
+const McpOutput = Schema.Struct({
+  content: Schema.Array(Schema.Struct({ type: Schema.Literal("text"), text: Schema.String })),
+})
+
+const SearchResponse = Schema.fromJsonString(
+  Schema.Struct({
+    success: Schema.Boolean,
+    data: Schema.Struct({
+      web: Schema.Array(
+        Schema.Struct({
+          url: Schema.String,
+          title: Schema.NullOr(Schema.String).pipe(Schema.optional),
+          description: Schema.NullOr(Schema.String).pipe(Schema.optional),
+        }),
+      ),
+    }),
+  }),
+)
+const decodeSearchResponse = Schema.decodeUnknownOption(SearchResponse)
+
+export const Plugin = define<HttpClient.HttpClient | Scope.Scope>({
+  id: "opencode.websearch.firecrawl",
+  effect: Effect.fn("WebSearchFirecrawl.Plugin")(function* (ctx) {
+    const http = yield* HttpClient.HttpClient
+    yield* ctx.integration.transform((draft) => {
+      draft.update("firecrawl", (integration) => (integration.name = "Firecrawl"))
+      draft.method.update({
+        integrationID: "firecrawl",
+        method: { type: "key", label: "API key (optional)" },
+      })
+      draft.method.update({
+        integrationID: "firecrawl",
+        method: { type: "env", names: ["FIRECRAWL_API_KEY"] },
+      })
+    })
+    yield* ctx.websearch.transform((draft) => {
+      draft.add({
+        id: "firecrawl",
+        name: "Firecrawl",
+        execute: (input) =>
+          Effect.gen(function* () {
+            const connection = yield* ctx.integration.connection.active("firecrawl")
+            const credential = connection ? yield* ctx.integration.connection.resolve(connection) : undefined
+            const result = yield* WebSearchMcp.call(
+              http,
+              endpoint,
+              "firecrawl_search",
+              { input: McpInput, output: McpOutput },
+              { query: input.query, limit: 8 },
+              {
+                "User-Agent": App.useragent(ctx.app),
+                ...(credential?.type === "key" ? { Authorization: `Bearer ${credential.key}` } : {}),
+              },
+            )
+            const content = result?.content.find((item) => item.text)
+            const response = content ? Option.getOrUndefined(decodeSearchResponse(content.text)) : undefined
+            return (
+              response?.data.web.map((item) => ({
+                url: item.url,
+                ...(item.title ? { title: item.title } : {}),
+                ...(item.description ? { content: item.description } : {}),
+                time: {},
+              })) ?? []
+            )
+          }),
+      })
+    })
+  }),
+})

packages/core/src/plugin/websearch/index.ts

@@ -1,4 +1,5 @@
 import { WebSearchExa } from "./exa"
+import { WebSearchFirecrawl } from "./firecrawl"
 import { WebSearchParallel } from "./parallel"
 
-export const WebSearchPlugins = [WebSearchExa.Plugin, WebSearchParallel.Plugin] as const
+export const WebSearchPlugins = [WebSearchExa.Plugin, WebSearchFirecrawl.Plugin, WebSearchParallel.Plugin] as const

packages/core/src/session.ts

@@ -133,6 +133,14 @@ export class CompactionConflictError extends Schema.TaggedErrorClass<CompactionC
 export class BusyError extends Schema.TaggedErrorClass<BusyError>()("Session.BusyError", {
   sessionID: SessionSchema.ID,
 }) {}
+export class PendingInputConflictError extends Schema.TaggedErrorClass<PendingInputConflictError>()(
+  "Session.PendingInputConflictError",
+  {
+    sessionID: SessionSchema.ID,
+    inputID: SessionMessage.ID,
+  },
+) {}
+type PendingInputRef = { readonly sessionID: SessionSchema.ID; readonly inputID: SessionMessage.ID }
 export class SkillNotFoundError extends Schema.TaggedErrorClass<SkillNotFoundError>()("Session.SkillNotFoundError", {
   skill: Skill.ID,
 }) {}
@@ -181,6 +189,9 @@ export interface Interface {
    * unhandled compaction barriers.
    */
   readonly pending: (sessionID: SessionSchema.ID) => Effect.Effect<SessionPending.Info[], NotFoundError>
+  readonly cancelPending: (input: PendingInputRef) => Effect.Effect<void, NotFoundError | PendingInputConflictError>
+  readonly steerPending: (input: PendingInputRef) => Effect.Effect<void, NotFoundError | PendingInputConflictError>
+  readonly queuePending: (input: PendingInputRef) => Effect.Effect<void, NotFoundError | PendingInputConflictError>
   /**
    * Durable, ordered session log read. Replays durable session bus after
    * the exclusive `after` cursor, emits a `Synced` marker at the captured
@@ -318,6 +329,31 @@ const layer = Layer.effect(
         ),
       )
 
+    const pendingConflict = Effect.fn("Session.pendingConflict")(function* (input: PendingInputRef) {
+      yield* result.get(input.sessionID)
+      return yield* new PendingInputConflictError(input)
+    })
+    const mutatePending = (
+      input: PendingInputRef,
+      mutation: (
+        bus: Bus.Interface,
+        input: { readonly id: SessionMessage.ID; readonly sessionID: SessionSchema.ID },
+      ) => Effect.Effect<unknown>,
+      wake = false,
+    ) =>
+      Effect.uninterruptible(
+        Effect.gen(function* () {
+          yield* mutation(bus, { sessionID: input.sessionID, id: input.inputID }).pipe(
+            Effect.catchDefect((defect) =>
+              defect instanceof SessionPending.LifecycleConflict
+                ? pendingConflict(input)
+                : Effect.die(defect),
+            ),
+          )
+          if (wake) yield* execution.wake(input.sessionID)
+        }),
+      )
+
     const result = Service.of({
       create: Effect.fn("Session.create")(function* (input) {
         const sessionID = input.id ?? SessionSchema.ID.create()
@@ -507,6 +543,9 @@ const layer = Layer.effect(
         yield* result.get(sessionID)
         return yield* SessionPending.list(db, sessionID)
       }),
+      cancelPending: Effect.fn("Session.cancelPending")((input) => mutatePending(input, SessionPending.cancel)),
+      steerPending: Effect.fn("Session.steerPending")((input) => mutatePending(input, SessionPending.steer, true)),
+      queuePending: Effect.fn("Session.queuePending")((input) => mutatePending(input, SessionPending.queue)),
       log: (input) =>
         Stream.unwrap(
           result

packages/core/src/session/message-updater.ts

@@ -90,6 +90,9 @@ export function update(adapter: Adapter, event: SessionEvent.DurableEvent) {
       "session.forked": () => Effect.void,
       "session.input.promoted": () => Effect.void,
       "session.input.admitted": () => Effect.void,
+      "session.input.cancelled": () => Effect.void,
+      "session.input.steered": () => Effect.void,
+      "session.input.queued": () => Effect.void,
       "session.execution.started": () => Effect.void,
       "session.execution.succeeded": () => clearCurrentRetry,
       "session.execution.failed": () => clearCurrentRetry,

packages/core/src/session/pending.ts

@@ -37,6 +37,7 @@ const decodeSynthetic = Schema.decodeUnknownSync(SyntheticData)
 const encodeSynthetic = Schema.encodeSync(SyntheticData)
 const decodeMessage = Schema.decodeUnknownSync(SessionMessage.Info)
 const inboxLocks = KeyedMutex.makeUnsafe<SessionSchema.ID>()
+type PendingRef = { readonly id: SessionMessage.ID; readonly sessionID: SessionSchema.ID }
 
 export class LifecycleConflict extends Schema.TaggedErrorClass<LifecycleConflict>()(
   "SessionPending.LifecycleConflict",
@@ -294,10 +295,7 @@ export const projectCompactionAdmitted = Effect.fn("SessionPending.projectCompac
  */
 export const projectPromoted = Effect.fn("SessionPending.projectPromoted")(function* (
   db: DatabaseService,
-  input: {
-    readonly id: SessionMessage.ID
-    readonly sessionID: SessionSchema.ID
-  },
+  input: PendingRef,
 ) {
   if (yield* compaction(db, input.sessionID)) return yield* Effect.die(new LifecycleConflict({ id: input.id }))
   const deleted = yield* db
@@ -312,6 +310,55 @@ export const projectPromoted = Effect.fn("SessionPending.projectPromoted")(funct
   return stored
 })
 
+export const projectCancelled = Effect.fn("SessionPending.projectCancelled")(function* (
+  db: DatabaseService,
+  input: PendingRef,
+) {
+  const deleted = yield* db
+    .delete(SessionPendingTable)
+    .where(
+      and(
+        eq(SessionPendingTable.id, input.id),
+        eq(SessionPendingTable.session_id, input.sessionID),
+        or(eq(SessionPendingTable.delivery, "queue"), eq(SessionPendingTable.delivery, "steer")),
+      ),
+    )
+    .returning({ id: SessionPendingTable.id })
+    .get()
+    .pipe(Effect.orDie)
+  if (!deleted) return yield* Effect.die(new LifecycleConflict({ id: input.id }))
+})
+
+const projectDelivery = Effect.fn("SessionPending.projectDelivery")(function* (
+  db: DatabaseService,
+  input: PendingRef & { readonly from: Delivery; readonly to: Delivery },
+) {
+  const updated = yield* db
+    .update(SessionPendingTable)
+    .set({ delivery: input.to })
+    .where(
+      and(
+        eq(SessionPendingTable.id, input.id),
+        eq(SessionPendingTable.session_id, input.sessionID),
+        eq(SessionPendingTable.delivery, input.from),
+      ),
+    )
+    .returning({ id: SessionPendingTable.id })
+    .get()
+    .pipe(Effect.orDie)
+  if (!updated) return yield* Effect.die(new LifecycleConflict({ id: input.id }))
+})
+
+export const projectSteered = Effect.fn("SessionPending.projectSteered")(
+  (db: DatabaseService, input: PendingRef) =>
+    projectDelivery(db, { ...input, from: "queue", to: "steer" }),
+)
+
+export const projectQueued = Effect.fn("SessionPending.projectQueued")(
+  (db: DatabaseService, input: PendingRef) =>
+    projectDelivery(db, { ...input, from: "steer", to: "queue" }),
+)
+
 export const settleCompaction = Effect.fn("SessionPending.settleCompaction")(function* (
   db: DatabaseService,
   input: { readonly sessionID: SessionSchema.ID },
@@ -389,6 +436,39 @@ export const equivalent = (
   return false
 }
 
+const publishMutation = <A, E, R>(input: PendingRef, effect: Effect.Effect<A, E, R>) =>
+  inboxLocks.withLock(input.sessionID)(effect).pipe(Effect.asVoid)
+
+export const cancel = Effect.fn("SessionPending.cancel")((bus: Bus.Interface, input: PendingRef) =>
+  publishMutation(
+    input,
+    bus.publish(SessionEvent.InputCancelled, {
+      sessionID: input.sessionID,
+      inputID: input.id,
+    }),
+  ),
+)
+
+export const steer = Effect.fn("SessionPending.steer")((bus: Bus.Interface, input: PendingRef) =>
+  publishMutation(
+    input,
+    bus.publish(SessionEvent.InputSteered, {
+      sessionID: input.sessionID,
+      inputID: input.id,
+    }),
+  ),
+)
+
+export const queue = Effect.fn("SessionPending.queue")((bus: Bus.Interface, input: PendingRef) =>
+  publishMutation(
+    input,
+    bus.publish(SessionEvent.InputQueued, {
+      sessionID: input.sessionID,
+      inputID: input.id,
+    }),
+  ),
+)
+
 const publish = Effect.fn("SessionPending.publish")(function* (
   db: DatabaseService,
   bus: Bus.Interface,

packages/core/src/session/projector.ts

@@ -485,6 +485,24 @@ const layer = Layer.effectDiscard(
           .pipe(Effect.orDie)
       }),
     )
+    yield* bus.project(SessionEvent.InputCancelled, (event) =>
+      SessionPending.projectCancelled(db, {
+        id: event.data.inputID,
+        sessionID: event.data.sessionID,
+      }),
+    )
+    yield* bus.project(SessionEvent.InputSteered, (event) =>
+      SessionPending.projectSteered(db, {
+        id: event.data.inputID,
+        sessionID: event.data.sessionID,
+      }),
+    )
+    yield* bus.project(SessionEvent.InputQueued, (event) =>
+      SessionPending.projectQueued(db, {
+        id: event.data.inputID,
+        sessionID: event.data.sessionID,
+      }),
+    )
     yield* bus.project(SessionEvent.Compaction.Admitted, (event) =>
       Effect.gen(function* () {
         if (event.durable === undefined)

packages/core/test/environment.test.ts

@@ -0,0 +1,39 @@
+import fs from "node:fs/promises"
+import { Effect } from "effect"
+import { ChildProcessSpawner } from "effect/unstable/process"
+import { CrossSpawnSpawner } from "@opencode-ai/util/cross-spawn-spawner"
+import { LayerNode } from "@opencode-ai/util/effect/layer-node"
+import { execDefaults, Failed, makeFiles, makeMemoryDriver } from "../src/environment/index"
+import { tmpdir } from "./fixture/tmpdir"
+import { environmentConformance } from "./lib/environment-conformance"
+
+environmentConformance("memory environment", () =>
+  Effect.sync(() => {
+    const driver = makeMemoryDriver()
+    return {
+      files: makeFiles(driver),
+      root: `/workspace-${crypto.randomUUID()}`,
+      symlink: driver.symlink,
+    }
+  }),
+)
+
+environmentConformance(
+  "GNU exec environment",
+  () =>
+    Effect.gen(function* () {
+      const spawner = yield* ChildProcessSpawner.ChildProcessSpawner
+      const tmp = yield* Effect.promise(() => tmpdir("opencode-environment-"))
+      return {
+        files: execDefaults(spawner),
+        root: tmp.path,
+        symlink: (target: string, link: string) =>
+          Effect.tryPromise({
+            try: () => fs.symlink(target, link),
+            catch: (cause) => new Failed({ path: link, cause }),
+          }),
+        dispose: Effect.promise(() => tmp[Symbol.asyncDispose]()),
+      }
+    }).pipe(Effect.provide(LayerNode.compile(CrossSpawnSpawner.node))),
+  process.platform !== "linux",
+)

packages/core/test/lib/environment-conformance.ts

@@ -0,0 +1,159 @@
+import { describe, expect } from "bun:test"
+import { Effect } from "effect"
+import { Failed, NotFound, WrongKind, type Files } from "../../src/environment/index"
+import { it } from "./effect"
+
+export interface EnvironmentHarness {
+  readonly files: Files
+  readonly root: string
+  readonly symlink?: (target: string, path: string) => Effect.Effect<void, Failed>
+  readonly dispose?: Effect.Effect<void>
+}
+
+export const environmentConformance = <E>(
+  name: string,
+  makeHarness: () => Effect.Effect<EnvironmentHarness, E>,
+  skip = false,
+) => {
+  const check = <A, E2>(title: string, body: (harness: EnvironmentHarness) => Effect.Effect<A, E2>) =>
+    it.live(title, () =>
+      Effect.gen(function* () {
+        const harness = yield* Effect.acquireRelease(makeHarness(), (harness) =>
+          Effect.gen(function* () {
+            yield* Effect.ignore(harness.files.remove(harness.root))
+            if (harness.dispose) yield* harness.dispose
+          }),
+        )
+        yield* harness.files.mkdir(harness.root)
+        return yield* body(harness)
+      }),
+    )
+
+  const bytes = (value: string) => new TextEncoder().encode(value)
+  const text = (value: Uint8Array) => new TextDecoder().decode(value)
+  const suite = skip ? describe.skip : describe
+
+  suite(name, () => {
+    check("writes, stats, and reads a file with its info", (harness) =>
+      Effect.gen(function* () {
+        const target = `${harness.root}/hello.txt`
+        yield* harness.files.write(target, bytes("hello"))
+        const result = yield* harness.files.read(target)
+        expect(text(result.bytes)).toBe("hello")
+        expect(result.info.type).toBe("file")
+        expect(result.info.size).toBe(5)
+        expect(yield* harness.files.stat(target)).toEqual(result.info)
+      }),
+    )
+
+    check("reports missing paths", (harness) =>
+      Effect.gen(function* () {
+        const target = `${harness.root}/missing`
+        expect(yield* Effect.flip(harness.files.read(target))).toBeInstanceOf(NotFound)
+        expect(yield* Effect.flip(harness.files.stat(target))).toBeInstanceOf(NotFound)
+        expect(yield* Effect.flip(harness.files.list(target))).toBeInstanceOf(NotFound)
+        expect(yield* Effect.flip(harness.files.move(target, `${harness.root}/other`))).toBeInstanceOf(NotFound)
+      }),
+    )
+
+    check("reports the actual kind", (harness) =>
+      Effect.gen(function* () {
+        const directory = `${harness.root}/directory`
+        const file = `${harness.root}/file`
+        yield* harness.files.mkdir(directory)
+        yield* harness.files.write(file, bytes("data"))
+        const readError = yield* Effect.flip(harness.files.read(directory))
+        const listError = yield* Effect.flip(harness.files.list(file))
+        expect(readError).toBeInstanceOf(WrongKind)
+        expect((readError as WrongKind).actual).toBe("directory")
+        expect(listError).toBeInstanceOf(WrongKind)
+        expect((listError as WrongKind).actual).toBe("file")
+      }),
+    )
+
+    check("write creates parent directories", (harness) =>
+      Effect.gen(function* () {
+        const target = `${harness.root}/one/two/file`
+        yield* harness.files.write(target, bytes("nested"))
+        yield* harness.files.write(`${harness.root}/empty`, new Uint8Array())
+        expect((yield* harness.files.stat(`${harness.root}/one/two`)).type).toBe("directory")
+        expect(yield* harness.files.stat(`${harness.root}/empty`)).toMatchObject({ type: "file", size: 0 })
+        expect(text((yield* harness.files.read(target)).bytes)).toBe("nested")
+      }),
+    )
+
+    check("reads byte ranges", (harness) =>
+      Effect.gen(function* () {
+        const target = `${harness.root}/range`
+        yield* harness.files.write(target, bytes("0123456789"))
+        expect(text((yield* harness.files.read(target, { offset: 2, length: 4 })).bytes)).toBe("2345")
+        expect(text((yield* harness.files.read(target, { offset: 8, length: 8 })).bytes)).toBe("89")
+        expect(text((yield* harness.files.read(target, { offset: 20, length: 4 })).bytes)).toBe("")
+      }),
+    )
+
+    check("lists immediate entries with their kinds", (harness) =>
+      Effect.gen(function* () {
+        yield* harness.files.write(`${harness.root}/file name`, bytes("data"))
+        yield* harness.files.mkdir(`${harness.root}/directory`)
+        yield* harness.files.write(`${harness.root}/directory/nested`, bytes("nested"))
+        const entries = yield* harness.files.list(harness.root)
+        expect(entries.toSorted((a, b) => a.name.localeCompare(b.name))).toEqual([
+          { name: "directory", type: "directory" },
+          { name: "file name", type: "file" },
+        ])
+      }),
+    )
+
+    check("reports symlinks without resolving them", (harness) =>
+      Effect.gen(function* () {
+        if (!harness.symlink) return
+        yield* harness.files.write(`${harness.root}/target`, bytes("target"))
+        yield* harness.files.write(`${harness.root}/target-dir/file`, bytes("through link"))
+        yield* harness.symlink("target", `${harness.root}/link`)
+        yield* harness.symlink("target-dir", `${harness.root}/link-dir`)
+        expect((yield* harness.files.stat(`${harness.root}/link`)).type).toBe("symlink")
+        expect(yield* harness.files.list(harness.root)).toContainEqual({ name: "link", type: "symlink" })
+        expect(text((yield* harness.files.read(`${harness.root}/link-dir/file`)).bytes)).toBe("through link")
+        const listError = yield* Effect.flip(harness.files.list(`${harness.root}/link-dir`))
+        expect(listError).toBeInstanceOf(WrongKind)
+        expect((listError as WrongKind).actual).toBe("symlink")
+      }),
+    )
+
+    check("follows symlinks when reading", (harness) =>
+      Effect.gen(function* () {
+        if (!harness.symlink) return
+        yield* harness.files.write(`${harness.root}/target`, bytes("target content"))
+        yield* harness.files.mkdir(`${harness.root}/directory`)
+        yield* harness.symlink("target", `${harness.root}/file-link`)
+        yield* harness.symlink("directory", `${harness.root}/directory-link`)
+        yield* harness.symlink("missing", `${harness.root}/dangling-link`)
+
+        const result = yield* harness.files.read(`${harness.root}/file-link`)
+        expect(text(result.bytes)).toBe("target content")
+        expect(result.info.type).toBe("file")
+        expect(result.info.size).toBe(bytes("target content").length)
+
+        const directoryError = yield* Effect.flip(harness.files.read(`${harness.root}/directory-link`))
+        expect(directoryError).toBeInstanceOf(WrongKind)
+        expect((directoryError as WrongKind).actual).toBe("directory")
+        expect(yield* Effect.flip(harness.files.read(`${harness.root}/dangling-link`))).toBeInstanceOf(NotFound)
+      }),
+    )
+
+    check("moves files and removes trees idempotently", (harness) =>
+      Effect.gen(function* () {
+        const source = `${harness.root}/source/file`
+        const destination = `${harness.root}/destination`
+        yield* harness.files.write(source, bytes("moved"))
+        yield* harness.files.move(source, destination)
+        expect(text((yield* harness.files.read(destination)).bytes)).toBe("moved")
+        expect(yield* Effect.flip(harness.files.stat(source))).toBeInstanceOf(NotFound)
+        yield* harness.files.remove(`${harness.root}/source`)
+        yield* harness.files.remove(`${harness.root}/source`)
+        expect(yield* Effect.flip(harness.files.stat(`${harness.root}/source`))).toBeInstanceOf(NotFound)
+      }),
+    )
+  })
+}

packages/core/test/session-prompt.test.ts

@@ -1086,4 +1086,78 @@ describe("Session.pending", () => {
       expect(yield* session.pending(sessionID)).toEqual([])
     }),
   )
+
+  it.effect("cancels pending input and allows its ID to be admitted again", () =>
+    Effect.gen(function* () {
+      yield* setup
+      const session = yield* Session.Service
+      const inputID = SessionMessage.ID.make("msg_cancelled_queue")
+      yield* session.prompt({
+        id: inputID,
+        sessionID,
+        text: "Queue this",
+        delivery: "queue",
+        resume: false,
+      })
+
+      yield* session.cancelPending({ sessionID, inputID })
+
+      expect(yield* session.pending(sessionID)).toEqual([])
+      expect(yield* eventCount(Bus.versionedType(SessionEvent.InputCancelled.type, 1))).toBe(1)
+      expect(
+        yield* session.cancelPending({ sessionID, inputID }).pipe(Effect.flip),
+      ).toMatchObject({ _tag: "Session.PendingInputConflictError", sessionID, inputID })
+      expect(yield* eventCount(Bus.versionedType(SessionEvent.InputCancelled.type, 1))).toBe(1)
+
+      const retried = yield* session.prompt({
+        id: inputID,
+        sessionID,
+        text: "Queue this",
+        delivery: "queue",
+        resume: false,
+      })
+      expect(retried).toMatchObject({ id: inputID, delivery: "queue" })
+    }),
+  )
+
+  it.effect("moves pending input between steer and queue delivery", () =>
+    Effect.gen(function* () {
+      yield* setup
+      const session = yield* Session.Service
+      const queued = yield* session.synthetic({
+        sessionID,
+        text: "Steer this",
+        delivery: "queue",
+        resume: false,
+      })
+      const alreadySteered = yield* session.prompt({ sessionID, text: "Already steer", resume: false })
+      wakeCalls.length = 0
+
+      yield* session.steerPending({ sessionID, inputID: queued.id })
+
+      expect(yield* session.pending(sessionID)).toMatchObject([
+        { id: queued.id, delivery: "steer" },
+        { id: alreadySteered.id, delivery: "steer" },
+      ])
+      expect(wakeCalls).toEqual([sessionID])
+      expect(yield* eventCount(Bus.versionedType(SessionEvent.InputSteered.type, 1))).toBe(1)
+
+      wakeCalls.length = 0
+      yield* session.queuePending({ sessionID, inputID: queued.id })
+      expect(yield* session.pending(sessionID)).toMatchObject([
+        { id: queued.id, delivery: "queue" },
+        { id: alreadySteered.id, delivery: "steer" },
+      ])
+      expect(wakeCalls).toEqual([])
+      expect(yield* eventCount(Bus.versionedType(SessionEvent.InputQueued.type, 1))).toBe(1)
+
+      expect(
+        yield* session.steerPending({ sessionID, inputID: alreadySteered.id }).pipe(Effect.flip),
+      ).toMatchObject({ _tag: "Session.PendingInputConflictError", sessionID, inputID: alreadySteered.id })
+      yield* session.cancelPending({ sessionID, inputID: alreadySteered.id })
+      expect(wakeCalls).toEqual([])
+      expect(yield* eventCount(Bus.versionedType(SessionEvent.InputSteered.type, 1))).toBe(1)
+      expect(yield* eventCount(Bus.versionedType(SessionEvent.InputCancelled.type, 1))).toBe(1)
+    }),
+  )
 })

packages/protocol/src/groups/session.ts

@@ -522,6 +522,45 @@ export const makeSessionGroup = <I extends HttpApiMiddleware.AnyId, S>(sessionLo
           }),
         ),
     )
+    .add(
+      HttpApiEndpoint.delete("session.pending.cancel", "/api/session/:sessionID/pending/:inputID", {
+        params: { sessionID: Session.ID, inputID: SessionMessage.ID },
+        success: HttpApiSchema.NoContent,
+        error: [ConflictError, SessionNotFoundError],
+      }).annotateMerge(
+          OpenApi.annotations({
+            identifier: "v2.session.pending.cancel",
+            summary: "Cancel pending input",
+            description: "Cancel an input that has not yet been promoted into session history.",
+          }),
+        ),
+    )
+    .add(
+      HttpApiEndpoint.post("session.pending.steer", "/api/session/:sessionID/pending/:inputID/steer", {
+        params: { sessionID: Session.ID, inputID: SessionMessage.ID },
+        success: HttpApiSchema.NoContent,
+        error: [ConflictError, SessionNotFoundError],
+      }).annotateMerge(
+          OpenApi.annotations({
+            identifier: "v2.session.pending.steer",
+            summary: "Steer queued input",
+            description: "Change a queued input to steer delivery and wake session execution.",
+          }),
+        ),
+    )
+    .add(
+      HttpApiEndpoint.post("session.pending.queue", "/api/session/:sessionID/pending/:inputID/queue", {
+        params: { sessionID: Session.ID, inputID: SessionMessage.ID },
+        success: HttpApiSchema.NoContent,
+        error: [ConflictError, SessionNotFoundError],
+      }).annotateMerge(
+          OpenApi.annotations({
+            identifier: "v2.session.pending.queue",
+            summary: "Queue pending steer",
+            description: "Change a pending steer to queued delivery.",
+          }),
+        ),
+    )
     .add(
       HttpApiEndpoint.get("session.instructions.entry.list", "/api/session/:sessionID/instructions/entries", {
         params: { sessionID: Session.ID },

packages/schema/src/session-event.ts

@@ -152,13 +152,15 @@ export const Forked = Event.durable({
 })
 export type Forked = typeof Forked.Type
 
+const InputRef = {
+  ...Base,
+  inputID: SessionMessage.ID,
+}
+
 export const InputPromoted = Event.durable({
   type: "session.input.promoted",
   ...options,
-  schema: {
-    sessionID: SessionID,
-    inputID: SessionMessage.ID,
-  },
+  schema: InputRef,
 })
 export type InputPromoted = typeof InputPromoted.Type
 
@@ -166,13 +168,33 @@ export const InputAdmitted = Event.durable({
   type: "session.input.admitted",
   ...options,
   schema: {
-    ...Base,
-    inputID: SessionMessage.ID,
+    ...InputRef,
     input: SessionPending.Message,
   },
 })
 export type InputAdmitted = typeof InputAdmitted.Type
 
+export const InputCancelled = Event.durable({
+  type: "session.input.cancelled",
+  ...options,
+  schema: InputRef,
+})
+export type InputCancelled = typeof InputCancelled.Type
+
+export const InputSteered = Event.durable({
+  type: "session.input.steered",
+  ...options,
+  schema: InputRef,
+})
+export type InputSteered = typeof InputSteered.Type
+
+export const InputQueued = Event.durable({
+  type: "session.input.queued",
+  ...options,
+  schema: InputRef,
+})
+export type InputQueued = typeof InputQueued.Type
+
 export namespace Execution {
   export const Started = Event.durable({ type: "session.execution.started", ...options, schema: Base })
   export type Started = typeof Started.Type
@@ -580,6 +602,9 @@ export const Definitions = Event.inventory(
   Forked,
   InputPromoted,
   InputAdmitted,
+  InputCancelled,
+  InputSteered,
+  InputQueued,
   Execution.Started,
   Execution.Succeeded,
   Execution.Failed,
@@ -621,13 +646,16 @@ export const DurableDefinitions = Event.inventory(
   ...Definitions.filter((definition) => definition.durability === "durable"),
   UsageRecorded,
 )
+export const EphemeralDefinitions = Event.inventory(
+  ...Definitions.filter((definition) => definition.durability === "ephemeral"),
+)
 
 export const Durable = Schema.Union(DurableDefinitions, { mode: "oneOf" })
   .pipe(Schema.toTaggedUnion("type"))
   .annotate({ identifier: "Session.Event.Durable" })
 export type DurableEvent = typeof Durable.Type
 
-export const All = Schema.Union(Event.inventory(...Definitions, UsageRecorded), { mode: "oneOf" }).pipe(
+export const All = Schema.Union([Durable, ...EphemeralDefinitions], { mode: "oneOf" }).pipe(
   Schema.toTaggedUnion("type"),
 )
 export type Event = typeof All.Type

packages/schema/test/event-manifest.test.ts

@@ -84,6 +84,9 @@ describe("public event manifest", () => {
         "session.forked.2",
         "session.input.promoted.1",
         "session.input.admitted.1",
+        "session.input.cancelled.1",
+        "session.input.steered.1",
+        "session.input.queued.1",
         "session.execution.started.1",
         "session.execution.succeeded.1",
         "session.execution.failed.1",

packages/server/src/handlers/session.ts

@@ -26,6 +26,22 @@ export const SessionHandler = HttpApiBuilder.group(Api, "server.session", (handl
   Effect.gen(function* () {
     const session = yield* Session.Service
     const transfer = yield* SessionTransfer.Service
+    const pendingMutation = (effect: ReturnType<typeof session.cancelPending>, conflict: string) =>
+      effect.pipe(
+        Effect.catchTag(
+          "Session.NotFoundError",
+          (error) =>
+            new SessionNotFoundError({
+              sessionID: error.sessionID,
+              message: `Session not found: ${error.sessionID}`,
+            }),
+        ),
+        Effect.catchTag(
+          "Session.PendingInputConflictError",
+          (error) => new ConflictError({ resource: error.inputID, message: `${conflict}: ${error.inputID}` }),
+        ),
+        Effect.as(HttpApiSchema.NoContent.make()),
+      )
 
     return handlers
       .handle(
@@ -661,6 +677,33 @@ export const SessionHandler = HttpApiBuilder.group(Api, "server.session", (handl
           }
         }),
       )
+      .handle(
+        "session.pending.cancel",
+        Effect.fn(function* (ctx) {
+          return yield* pendingMutation(
+            session.cancelPending({ sessionID: ctx.params.sessionID, inputID: ctx.params.inputID }),
+            "Pending input can no longer be cancelled",
+          )
+        }),
+      )
+      .handle(
+        "session.pending.steer",
+        Effect.fn(function* (ctx) {
+          return yield* pendingMutation(
+            session.steerPending({ sessionID: ctx.params.sessionID, inputID: ctx.params.inputID }),
+            "Pending input is no longer queued",
+          )
+        }),
+      )
+      .handle(
+        "session.pending.queue",
+        Effect.fn(function* (ctx) {
+          return yield* pendingMutation(
+            session.queuePending({ sessionID: ctx.params.sessionID, inputID: ctx.params.inputID }),
+            "Pending input is no longer a steer",
+          )
+        }),
+      )
       .handle(
         "session.instructions.entry.list",
         Effect.fn(function* (ctx) {

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

@@ -462,6 +462,7 @@ function newLayout() {
 function webSearchProviderLabel(provider: unknown) {
   if (provider === "parallel") return "Parallel Web Search"
   if (provider === "exa") return "Exa Web Search"
+  if (provider === "firecrawl") return "Firecrawl Web Search"
   return "Web Search"
 }
 

packages/tui/src/component/prompt/index.tsx

@@ -53,12 +53,14 @@ import { useLocation } from "../../context/location"
 import { Keymap, type KeymapCommand } from "../../context/keymap"
 import { abbreviateHome } from "../../runtime"
 import { PluginSlot } from "../../plugin/render"
+import type { SessionPending } from "@opencode-ai/schema/session-pending"
 
 export type PromptProps = {
   sessionID?: string
   visible?: boolean
   disabled?: boolean
   onSubmit?: () => void
+  onEmptySubmit?: () => boolean | Promise<boolean>
   ref?: (ref: PromptRef | undefined) => void
   hint?: JSX.Element
   right?: JSX.Element
@@ -357,6 +359,20 @@ export function Prompt(props: PromptProps) {
           dialog.clear()
         },
       },
+      {
+        title: "Queue prompt",
+        name: "prompt.queue",
+        category: "Prompt",
+        palette: undefined,
+        run: async (_input: string | undefined, event?: KeyEvent) => {
+          event?.preventDefault()
+          event?.stopPropagation()
+          if (!input.focused) return
+          const handled = await submit("queue")
+          if (!handled) return
+          dialog.clear()
+        },
+      },
       {
         title: "Remove editor context",
         name: "prompt.editor_context.clear",
@@ -515,6 +531,11 @@ export function Prompt(props: PromptProps) {
     commands: promptCommands(),
   }))
 
+  Keymap.createLayer(() => ({
+    priority: 1,
+    bindings: ["prompt.queue"],
+  }))
+
   Keymap.createLayer(() => ({
     bindings: [
       "prompt.submit",
@@ -900,7 +921,7 @@ export function Prompt(props: PromptProps) {
   })
 
   let submitting = false
-  async function submit() {
+  async function submit(delivery: SessionPending.Delivery = "steer") {
     // Prevent overlapping invocations (e.g. a double-pressed Enter, or the
     // input's native onSubmit racing another dispatch). Without this guard,
     // a second call slips past the empty-input check before the first call
@@ -910,13 +931,13 @@ export function Prompt(props: PromptProps) {
     if (submitting) return false
     submitting = true
     try {
-      return await submitInner()
+      return await submitInner(delivery)
     } finally {
       submitting = false
     }
   }
 
-  async function submitInner() {
+  async function submitInner(delivery: SessionPending.Delivery) {
     // IME: double-defer may fire before onContentChange flushes the last
     // composed character (e.g. Korean hangul) to the store, so read
     // plainText directly and sync before any downstream reads.
@@ -927,14 +948,25 @@ export function Prompt(props: PromptProps) {
     if (props.disabled) return false
     if (move.creating()) return false
     if (auto()?.visible) return false
-    if (!store.prompt.text) return false
     const trimmed = store.prompt.text.trim()
+    if (!trimmed) return delivery === "steer" ? (await props.onEmptySubmit?.()) === true : false
+    if (
+      delivery === "queue" &&
+      (store.mode === "shell" || trimmed === "exit" || trimmed === "quit" || trimmed === ":q")
+    ) {
+      toast.show({ message: "This prompt cannot be queued", variant: "warning" })
+      return false
+    }
     if (trimmed === "exit" || trimmed === "quit" || trimmed === ":q") {
       void exit()
       return true
     }
     const slash = argumentSlash(store.prompt.text, keymapCommands())
     if (slash) {
+      if (delivery === "queue") {
+        toast.show({ message: "This prompt cannot be queued", variant: "warning" })
+        return false
+      }
       clearPrompt()
       await slash.command.run(slash.input)
       return true
@@ -958,6 +990,16 @@ export function Prompt(props: PromptProps) {
     const isCommand =
       slashHead !== undefined &&
       (data.location.command.list(currentLocation.ref) ?? []).some((command) => command.name === slashHead.name)
+    if (delivery === "queue" && isSkill) {
+      toast.show({ message: "Skills cannot be queued", variant: "warning" })
+      return false
+    }
+    const editorSelection = editorContext()
+    const pendingEditorSelection = editorSelection && editor.labelState() === "pending" ? editorSelection : undefined
+    if (delivery === "queue" && pendingEditorSelection) {
+      toast.show({ message: "Editor context cannot be queued", variant: "warning" })
+      return false
+    }
     const agent = local.agent.current()
     if (!agent) return false
     const selection = local.model.selection()
@@ -1016,8 +1058,6 @@ export function Prompt(props: PromptProps) {
 
     // Capture mode before it gets reset
     const currentMode = store.mode
-    const editorSelection = editorContext()
-    const pendingEditorSelection = editorSelection && editor.labelState() === "pending" ? editorSelection : undefined
 
     if (store.mode === "shell") {
       move.startSubmit()
@@ -1040,6 +1080,7 @@ export function Prompt(props: PromptProps) {
           model,
           files: store.prompt.files,
           agents: store.prompt.agents,
+          delivery,
         })
         .catch((error) => {
           cancelCommit()
@@ -1049,7 +1090,7 @@ export function Prompt(props: PromptProps) {
       move.startSubmit()
       void client.api.session.skill({
         sessionID,
-        skill: slashHead!.name,
+        skill: slashHead.name,
       })
     } else {
       move.startSubmit()
@@ -1105,6 +1146,7 @@ export function Prompt(props: PromptProps) {
           text: inputText,
           files: store.prompt.files,
           agents: store.prompt.agents,
+          delivery,
         })
         .then(
           () => undefined,

packages/tui/src/config/v1/keybind.ts

@@ -103,7 +103,8 @@ export const Definitions = {
   session_interrupt: keybind("escape", "Interrupt current session"),
   session_background: keybind("ctrl+b", "Background blocking session tools"),
   session_compact: keybind("<leader>c", "Compact the session"),
-  session_queued_prompts: keybind("<leader>q", "View pending work"),
+  session_queued_prompts: keybind("<leader>q", "View queued prompts"),
+  queued_prompt_delete: keybind("ctrl+d", "Delete queued prompt"),
   session_child_first: keybind("down", "Toggle subagent picker"),
   session_parent: keybind("up", "Go to parent session"),
   session_pin_toggle: keybind("ctrl+f", "Pin or unpin session in the session list"),
@@ -161,6 +162,7 @@ export const Definitions = {
   display_thinking: keybind("none", "Toggle thinking blocks visibility"),
 
   prompt_submit: keybind("none", "Submit prompt"),
+  prompt_queue: keybind("alt+return", "Queue prompt"),
   prompt_editor_context_clear: keybind("none", "Clear editor context"),
   prompt_skills: keybind("none", "Open skill selector"),
   prompt_stash: keybind("none", "Stash prompt"),
@@ -170,7 +172,7 @@ export const Definitions = {
   input_clear: keybind("ctrl+c", "Clear input field"),
   input_paste: keybind({ key: "ctrl+v", preventDefault: false }, "Paste from clipboard"),
   input_submit: keybind("return", "Submit input"),
-  input_newline: keybind("shift+return,ctrl+return,alt+return,ctrl+j", "Insert newline in input"),
+  input_newline: keybind("shift+return,ctrl+return,ctrl+j", "Insert newline in input"),
   input_move_left: keybind("left,ctrl+b", "Move cursor left in input"),
   input_move_right: keybind("right,ctrl+f", "Move cursor right in input"),
   input_move_up: keybind("up", "Move cursor up in input"),
@@ -305,6 +307,7 @@ export const CommandMap = {
   session_background: "session.background",
   session_compact: "session.compact",
   session_queued_prompts: "session.queued_prompts",
+  queued_prompt_delete: "queued_prompt.delete",
   session_child_first: "session.child.first",
   session_parent: "session.parent",
   session_pin_toggle: "session.pin.toggle",
@@ -359,6 +362,7 @@ export const CommandMap = {
   messages_redo: "session.redo",
   display_thinking: "session.toggle.thinking",
   prompt_submit: "prompt.submit",
+  prompt_queue: "prompt.queue",
   prompt_editor_context_clear: "prompt.editor_context.clear",
   prompt_skills: "prompt.skills",
   prompt_stash: "prompt.stash",

packages/tui/src/context/data.tsx

@@ -38,6 +38,7 @@ import { createStore, produce, reconcile } from "solid-js/store"
 import { createSimpleContext } from "./helper"
 import { useClient } from "./client"
 import { nonEmptyToolContent } from "../util/tool-display"
+import type { SessionPending } from "@opencode-ai/schema/session-pending"
 import { createEffect, createSignal, onCleanup } from "solid-js"
 
 export type DataSessionStatus = "idle" | "running"
@@ -170,12 +171,20 @@ export const { use: useData, provider: DataProvider } = createSimpleContext({
 
     function removePending(sessionID: string, inputID?: string) {
       if (!inputID) return
-      setStore(
-        "session",
-        "pending",
-        sessionID,
-        (store.session.pending[sessionID] ?? []).filter((item) => item.id !== inputID),
-      )
+      if (store.session.pending[sessionID]?.some((item) => item.id === inputID))
+        setStore(
+          "session",
+          "pending",
+          sessionID,
+          (store.session.pending[sessionID] ?? []).filter((item) => item.id !== inputID),
+        )
+      if (store.session.input[sessionID]?.includes(inputID))
+        setStore(
+          "session",
+          "input",
+          sessionID,
+          (store.session.input[sessionID] ?? []).filter((id) => id !== inputID),
+        )
     }
 
     function removePermission(sessionID: string, requestID: string) {
@@ -189,6 +198,13 @@ export const { use: useData, provider: DataProvider } = createSimpleContext({
       )
     }
 
+    function updatePending(sessionID: string, inputID: string, delivery: SessionPending.Delivery) {
+      const index = store.session.pending[sessionID]?.findIndex((item) => item.id === inputID) ?? -1
+      const item = store.session.pending[sessionID]?.[index]
+      if (index < 0 || !item || item.type === "compaction" || item.delivery === delivery) return
+      setStore("session", "pending", sessionID, index, { ...item, delivery })
+    }
+
     const message = {
       update(sessionID: string, fn: (messages: SessionMessageInfo[], index: Map<string, number>) => void) {
         setStore(
@@ -235,6 +251,12 @@ export const { use: useData, provider: DataProvider } = createSimpleContext({
           (item): item is SessionMessageAssistantReasoning => item.type === "reasoning" && !item.time?.completed,
         )
       },
+      reindex(messages: SessionMessageInfo[], index: Map<string, number>, start: number) {
+        for (let position = start; position < messages.length; position++) {
+          const item = messages[position]
+          if (item) index.set(item.id, position)
+        }
+      },
     }
 
     function index(sessionID: string) {
@@ -416,24 +438,36 @@ export const { use: useData, provider: DataProvider } = createSimpleContext({
           }
           break
         case "session.input.promoted": {
+          const admitted = store.session.input[event.data.sessionID]?.includes(event.data.inputID) ?? false
           removePending(event.data.sessionID, event.data.inputID)
           message.update(event.data.sessionID, (draft, index) => {
             const position = index.get(event.data.inputID)
             if (position === undefined) return
             const existing = draft[position]
-            if (!existing || !store.session.input[event.data.sessionID]?.includes(event.data.inputID)) return
+            if (!existing || !admitted) return
             existing.time.created = event.created
             draft.splice(position, 1)
             draft.push(existing)
-            index.clear()
-            draft.forEach((message, indexValue) => index.set(message.id, indexValue))
+            message.reindex(draft, index, position)
           })
-          setStore(
-            "session",
-            "input",
-            event.data.sessionID,
-            (store.session.input[event.data.sessionID] ?? []).filter((id) => id !== event.data.inputID),
-          )
+          break
+        }
+        case "session.input.steered":
+          updatePending(event.data.sessionID, event.data.inputID, "steer")
+          break
+        case "session.input.queued":
+          updatePending(event.data.sessionID, event.data.inputID, "queue")
+          break
+        case "session.input.cancelled": {
+          removePending(event.data.sessionID, event.data.inputID)
+          if (messageIndex.get(event.data.sessionID)?.has(event.data.inputID))
+            message.update(event.data.sessionID, (draft, index) => {
+              const position = index.get(event.data.inputID)
+              if (position === undefined) return
+              draft.splice(position, 1)
+              index.delete(event.data.inputID)
+              message.reindex(draft, index, position)
+            })
           break
         }
         case "session.input.admitted":

packages/tui/src/mini/footer.command.tsx

@@ -3,7 +3,9 @@ import { TextAttributes, type InputRenderable, type KeyEvent } from "@opentui/co
 import { useKeyboard, type JSX } from "@opentui/solid"
 import fuzzysort from "fuzzysort"
 import { createEffect, createMemo, createSignal, type Accessor } from "solid-js"
+import { Keymap } from "../context/keymap"
 import { RunFooterMenu, createFooterMenuState, type RunFooterMenuItem } from "./footer.menu"
+import { monoShortcut } from "./mono"
 import type { RunFooterTheme } from "./theme"
 import type {
   FooterQueuedPrompt,
@@ -56,6 +58,10 @@ type SkillEntry = PanelEntry & {
   name: string
 }
 
+type QueuedPromptEntry = PanelEntry & {
+  prompt: FooterQueuedPrompt
+}
+
 type SubagentEntry = PanelEntry & {
   sessionID: string
   current: boolean
@@ -442,7 +448,7 @@ export function RunCommandMenuBody(props: {
           {
             action: "queued" as const,
             category: "Agent",
-            display: "View pending work",
+            display: "View queued prompts",
             footer: `${props.queued().length} pending`,
             keywords: props
               .queued()
@@ -837,28 +843,48 @@ export function RunQueuedPromptSelectBody(props: {
   theme: Accessor<RunFooterTheme>
   prompts: Accessor<FooterQueuedPrompt[]>
   onClose: () => void
+  onSteer: (prompt: FooterQueuedPrompt) => void
+  onDelete: (prompt: FooterQueuedPrompt) => void
   onRows?: (rows: number) => void
   mono?: boolean
 }) {
-  const entries = createMemo(() =>
+  const entries = createMemo<QueuedPromptEntry[]>(() =>
     props.prompts().map((prompt) => ({
       category: "",
       display: prompt.prompt.text.replaceAll("\n", " "),
-      footer: prompt.delivery,
+      footer: "queued",
       keywords: prompt.prompt.text,
+      prompt,
     })),
   )
   const controller = createSearchablePanelController({
     entries,
     limit: SUBAGENT_LIST_ROWS,
     onClose: props.onClose,
-    onSelect: props.onClose,
+    onSelect: (item) => props.onSteer(item.prompt),
     onRows: props.onRows,
   })
+  const shortcuts = Keymap.useShortcuts()
+  const deleteShortcut = () => monoShortcut(shortcuts.get("queued_prompt.delete") ?? "", props.mono ?? false)
+  Keymap.createLayer(() => ({
+    priority: 1,
+    commands: [
+      {
+        id: "queued_prompt.delete",
+        title: "Delete queued prompt",
+        group: "Prompt",
+        run() {
+          const item = controller.items()[controller.menu.selected()]
+          if (!item) return false
+          props.onDelete(item.prompt)
+        },
+      },
+    ],
+  }))
 
   return (
     <PanelShell
-      title="Pending work"
+      title="Queued prompts"
       query={controller.query()}
       count={controller.items().length}
       total={entries().length}
@@ -866,6 +892,7 @@ export function RunQueuedPromptSelectBody(props: {
       theme={props.theme}
       inputRef={controller.inputRef}
       onQuery={controller.setQuery}
+      hint={["enter steer", deleteShortcut() ? `${deleteShortcut()} delete` : undefined].filter(Boolean).join(" · ")}
       mono={props.mono}
     >
       <RunFooterMenu
@@ -875,7 +902,7 @@ export function RunQueuedPromptSelectBody(props: {
         offset={controller.menu.offset}
         rows={controller.menu.rows}
         limit={SUBAGENT_LIST_ROWS}
-        empty="No pending work"
+        empty="No queued prompts"
         border={false}
         paddingLeft={panelPad(props.mono)}
         paddingRight={panelPad(props.mono)}

packages/tui/src/mini/footer.form.tsx

@@ -71,6 +71,7 @@ export function RunFormBody(props: {
     return typeof value === "string" ? value : undefined
   })
   let area: TextareaRenderable | undefined
+  let editingReady = false
 
   createEffect(() => {
     setState((previous) => formSync(previous, props.request))
@@ -93,6 +94,7 @@ export function RunFormBody(props: {
       if (!area || area.isDestroyed || !state().editing) return
       area.focus()
       area.cursorOffset = area.plainText.length
+      editingReady = true
     })
   })
 
@@ -209,6 +211,22 @@ export function RunFormBody(props: {
       return
     }
     if (unsupported()) return
+    const character =
+      !event.ctrl &&
+      !event.meta &&
+      !event.option &&
+      !event.super &&
+      !event.hyper &&
+      /^[^\p{C}\p{Zl}\p{Zp}]$/u.test(event.sequence)
+        ? event.sequence
+        : undefined
+    if (custom() && state().selected === rows().length && character && !editingReady) {
+      const next = state().editing ? state() : formPick(state(), props.request)
+      if (!state().editing) editingReady = false
+      setState(formSetDraft(next, current(), formInput(next, current()) + character))
+      event.preventDefault()
+      return
+    }
     if (state().editing) return
     if (
       event.name === "tab" ||

packages/tui/src/mini/footer.prompt.tsx

@@ -19,6 +19,7 @@ import {
   displayCharAt,
   displaySlice,
   isExitCommand,
+  isCompactCommand,
   mentionTriggerIndex,
   isNewCommand,
   movePromptHistory,
@@ -31,7 +32,16 @@ import { realignEditorPromptParts, resolveEditorSlashValue } from "./prompt.edit
 import { monoTruncateMiddle } from "./mono"
 import { FOOTER_MENU_ROWS, createFooterMenuState, type RunFooterMenuItem } from "./footer.menu"
 import type { RunFooterTheme } from "./theme"
-import type { FooterState, RunAgent, RunCommand, RunPrompt, RunPromptPart, RunReference } from "./types"
+import type {
+  FooterQueuedPrompt,
+  FooterState,
+  RunAgent,
+  RunCommand,
+  RunDelivery,
+  RunPrompt,
+  RunPromptPart,
+  RunReference,
+} from "./types"
 
 const AUTOCOMPLETE_ROWS = FOOTER_MENU_ROWS
 const AUTOCOMPLETE_BOTTOM_ROWS = 1
@@ -72,6 +82,8 @@ type PromptInput = {
   theme: Accessor<RunFooterTheme>
   mono: Accessor<boolean>
   history?: Accessor<RunPrompt[]>
+  queuedPrompts: Accessor<FooterQueuedPrompt[]>
+  onQueuedPromptSteer: (inputID: string) => Promise<boolean>
   onSubmit: (input: RunPrompt) => boolean | Promise<boolean>
   onCycle: () => void
   onInterrupt: () => boolean
@@ -980,8 +992,18 @@ export function createPromptState(input: PromptInput): PromptState {
   }))
 
   Keymap.createLayer(() => ({
+    priority: 1,
     enabled: input.prompt() && !visible(),
     commands: [
+      {
+        id: "prompt.queue",
+        title: "Queue prompt",
+        group: "Prompt",
+        run() {
+          syncDraft()
+          submitPrompt(promptCopy(draft), "queue")
+        },
+      },
       {
         id: "prompt.editor",
         title: "Open editor",
@@ -1116,7 +1138,8 @@ export function createPromptState(input: PromptInput): PromptState {
     }
   }
 
-  const submitPrompt = (next: RunPrompt) => {
+  let submitting = false
+  const submitPrompt = (next: RunPrompt, delivery: RunDelivery = "steer") => {
     if (!area || area.isDestroyed) {
       draft = promptCopy(next)
     }
@@ -1130,12 +1153,34 @@ export function createPromptState(input: PromptInput): PromptState {
       hide()
     }
 
+    if (submitting) return
+
     if (!next.text.trim()) {
+      const queued = delivery === "steer" ? input.queuedPrompts()[0] : undefined
+      if (queued) {
+        submitting = true
+        void input.onQueuedPromptSteer(queued.messageID).finally(() => {
+          submitting = false
+        })
+        return
+      }
       input.onStatus(input.state().phase === "running" ? "waiting for current response" : "empty prompt ignored")
       return
     }
 
     const command = next.mode === "shell" ? undefined : selectedCommand(next.text, next.command)
+    if (
+      delivery === "queue" &&
+      (next.mode === "shell" ||
+        command?.source === "skill" ||
+        isNewCommand(next.text) ||
+        isCompactCommand(next.text) ||
+        isExitCommand(next.text) ||
+        next.text.trim().toLowerCase() === "/settings")
+    ) {
+      input.onStatus("this prompt cannot be queued")
+      return
+    }
     if (!command && next.mode !== "shell" && isExitCommand(next.text)) {
       input.onExit()
       return
@@ -1157,24 +1202,28 @@ export function createPromptState(input: PromptInput): PromptState {
     }
 
     const submit = command
-      ? { ...next, command }
+      ? { ...next, command, delivery }
       : parsed?.type === "command"
-        ? { ...next, command: parsed.command }
-        : next
+        ? { ...next, command: parsed.command, delivery }
+        : { ...next, delivery }
     const shellMode = next.mode === "shell"
 
+    submitting = true
     resetDraft()
     queueMicrotask(async () => {
-      if (await input.onSubmit(submit)) {
-        push(next)
-        if (shellMode) {
-          setShellMode(false)
-          draft = emptyPrompt(false)
+      try {
+        if (await input.onSubmit(submit)) {
+          push(next)
+          if (shellMode) {
+            setShellMode(false)
+            draft = emptyPrompt(false)
+          }
+          return
         }
-        return
+        restore(next)
+      } finally {
+        submitting = false
       }
-
-      restore(next)
     })
   }
 

packages/tui/src/mini/footer.ts

@@ -51,6 +51,7 @@ import type {
   MiniSettingChange,
   MiniSettings,
   PermissionReply,
+  QueuedPromptAction,
   RunAgent,
   RunCommand,
   RunInput,
@@ -96,6 +97,7 @@ type RunFooterOptions = {
   onVariantSelect?: (variant: string | undefined) => CycleResult | void | Promise<CycleResult | void>
   onInterrupt?: () => void
   onBackground?: () => void
+  onQueuedPromptAction?: (action: QueuedPromptAction, inputID: string) => Promise<void>
   onEditorOpen: (input: { value: string }) => Promise<string | undefined>
   onSubagentSelect?: (sessionID: string | undefined) => void
   onSubagentInterrupt?: (sessionID: string) => void
@@ -343,6 +345,7 @@ export class RunFooter implements FooterApi {
               onCycle: footer.handleCycle,
               onInterrupt: footer.handleInterrupt,
               onBackground: options.onBackground,
+              onQueuedPromptAction: options.onQueuedPromptAction,
               onEditorOpen: options.onEditorOpen,
               onInputClear: footer.handleInputClear,
               onExitRequest: footer.handleExit,

packages/tui/src/mini/footer.view.tsx

@@ -34,6 +34,8 @@ import { Keymap } from "../context/keymap"
 import { modelInfo } from "./variant.shared"
 import { monoShortcut } from "./mono"
 import { stringWidth } from "../util/string-width"
+import { errorMessage } from "../util/error"
+import { createSingleFlight } from "../util/single-flight"
 
 import type {
   FooterPromptRoute,
@@ -46,6 +48,7 @@ import type {
   MiniSettingChange,
   MiniSettings,
   PermissionReply,
+  QueuedPromptAction,
   RunAgent,
   RunCommand,
   RunInput,
@@ -92,13 +95,14 @@ type RunFooterViewProps = {
   mono: boolean
   miniSettings: () => MiniSettings
   history?: () => RunPrompt[]
-  onSubmit: (input: RunPrompt) => boolean
+  onSubmit: (input: RunPrompt) => boolean | Promise<boolean>
   onPermissionReply: (input: PermissionReply) => void | Promise<void>
   onFormReply: (input: FormReply) => void | Promise<void>
   onFormCancel: (input: FormCancel) => void | Promise<void>
   onCycle: () => void
   onInterrupt: () => boolean
   onBackground?: () => void
+  onQueuedPromptAction?: (action: QueuedPromptAction, inputID: string) => Promise<void>
   onEditorOpen: (input: { value: string }) => Promise<string | undefined>
   onInputClear: () => void
   onExitRequest?: () => boolean
@@ -132,6 +136,7 @@ export function RunFooterView(props: RunFooterViewProps) {
   const [route, setRoute] = createSignal<FooterPromptRoute>({ type: "composer" })
   const [subagentMenuRows, setSubagentMenuRows] = createSignal(RUN_SUBAGENT_PANEL_ROWS)
   const queuedPrompts = createMemo(() => props.queuedPrompts?.() ?? [])
+  const queue = createMemo(() => queuedPrompts().filter((item) => item.delivery === "queue"))
   const skills = createMemo(() => (props.commands() ?? []).filter((item) => item.source === "skill"))
   const prompt = createMemo(() => active().type === "prompt" && route().type === "composer")
   const selectingSubagent = createMemo(() => active().type === "prompt" && route().type === "subagent-menu")
@@ -229,7 +234,7 @@ export function RunFooterView(props: RunFooterViewProps) {
     const details = [busy() ? "running" : "idle", `agent ${props.currentAgent()}`]
     if (current) details.push(variant ? `${current} ${variant}` : current)
     if (usage()) details.push(props.mono ? usage().replaceAll(" · ", " - ") : usage())
-    if (queuedPrompts().length > 0) details.push(`${queuedPrompts().length} pending`)
+    if (queue().length > 0) details.push(`${queue().length} queued`)
     if (activeTabs().length > 0) details.push(`${activeTabs().length} subagent${activeTabs().length === 1 ? "" : "s"}`)
     return details.join(props.mono ? " - " : " · ")
   })
@@ -309,7 +314,7 @@ export function RunFooterView(props: RunFooterViewProps) {
   }
 
   const openQueuedMenu = () => {
-    if (queuedPrompts().length === 0) return
+    if (queue().length === 0) return
     setRoute({ type: "queued-menu" })
     props.onSubagentSelect?.(undefined)
   }
@@ -318,6 +323,22 @@ export function RunFooterView(props: RunFooterViewProps) {
     setRoute({ type: "composer" })
   }
 
+  const runQueuedAction = createSingleFlight<string>()
+  const queuedPromptAction = async (action: QueuedPromptAction, inputID: string) => {
+    const run = props.onQueuedPromptAction
+    if (!run) return false
+    const result = await runQueuedAction(inputID, async () => {
+      const error = await run(action, inputID).then(
+        () => undefined,
+        (error) => error,
+      )
+      if (!error) return true
+      props.onStatus(`failed to ${action === "cancel" ? "delete" : action} queued prompt: ${errorMessage(error)}`)
+      return false
+    })
+    return result ?? false
+  }
+
   const openTab = (sessionID: string) => {
     setRoute({ type: "subagent", sessionID })
     props.onSubagentSelect?.(sessionID)
@@ -357,6 +378,8 @@ export function RunFooterView(props: RunFooterViewProps) {
     theme,
     mono: () => props.mono,
     history: props.history,
+    queuedPrompts: queue,
+    onQueuedPromptSteer: (inputID) => queuedPromptAction("steer", inputID),
     onSubmit: props.onSubmit,
     onCycle: props.onCycle,
     onInterrupt: props.onInterrupt,
@@ -451,13 +474,12 @@ export function RunFooterView(props: RunFooterViewProps) {
     if (foregroundSubagents() && backgroundShortcut()) {
       items.push({ key: backgroundShortcut(), label: "background" })
     }
-    if (queuedPrompts().length > 0 && queuedShortcut()) {
-      items.push({ key: queuedShortcut(), label: `${queuedPrompts().length} pending` })
+    if (queue().length > 0 && queuedShortcut()) {
+      items.push({ key: queuedShortcut(), label: `${queue().length} queued` })
     }
     if (activeTabs().length > 0 && subagentShortcut()) {
       items.push({ key: subagentShortcut(), label: "subagents" })
     }
-
     return items
   })
   const commandHint = createMemo(() => {
@@ -568,11 +590,11 @@ export function RunFooterView(props: RunFooterViewProps) {
   }))
 
   Keymap.createLayer(() => ({
-    enabled: active().type === "prompt" && route().type === "composer" && queuedPrompts().length > 0,
+    enabled: active().type === "prompt" && route().type === "composer" && queue().length > 0,
     commands: [
       {
         id: "session.queued_prompts",
-        title: "View pending work",
+        title: "View queued prompts",
         group: "Session",
         run: openQueuedMenu,
       },
@@ -630,7 +652,7 @@ export function RunFooterView(props: RunFooterViewProps) {
   })
 
   createEffect(() => {
-    if (route().type !== "queued-menu" || queuedPrompts().length > 0) return
+    if (route().type !== "queued-menu" || queue().length > 0) return
     closePanel()
   })
 
@@ -734,8 +756,16 @@ export function RunFooterView(props: RunFooterViewProps) {
                         <Match when={selectingQueued()}>
                           <RunQueuedPromptSelectBody
                             theme={theme}
-                            prompts={queuedPrompts}
+                            prompts={queue}
                             onClose={closePanel}
+                            onSteer={(item) => {
+                              void queuedPromptAction("steer", item.messageID).then((steered) => {
+                                if (steered) closePanel()
+                              })
+                            }}
+                            onDelete={(item) => {
+                              void queuedPromptAction("cancel", item.messageID)
+                            }}
                             onRows={setSubagentMenuRows}
                             mono={props.mono}
                           />
@@ -745,7 +775,7 @@ export function RunFooterView(props: RunFooterViewProps) {
                             theme={theme}
                             commands={props.commands}
                             subagents={tabs}
-                            queued={queuedPrompts}
+                            queued={queue}
                             variants={props.variants}
                             variantCycle={variantCycle()}
                             onClose={closePanel}

packages/tui/src/mini/runtime.lifecycle.ts

@@ -22,6 +22,7 @@ import type {
   MiniSettings,
   MiniHost,
   PermissionReply,
+  QueuedPromptAction,
   RunAgent,
   RunInput,
   RunPrompt,
@@ -70,6 +71,7 @@ export type LifecycleInput = {
   onVariantSelect?: (variant: string | undefined) => CycleResult | void | Promise<CycleResult | void>
   onInterrupt?: () => void
   onBackground?: () => void
+  onQueuedPromptAction?: (action: QueuedPromptAction, inputID: string) => Promise<void>
   onSubagentSelect?: (sessionID: string | undefined) => void
   onSubagentInterrupt?: (sessionID: string) => void
 }
@@ -243,6 +245,7 @@ export async function createRuntimeLifecycle(input: LifecycleInput): Promise<Lif
     onVariantSelect: input.onVariantSelect,
     onInterrupt: input.onInterrupt,
     onBackground: input.onBackground,
+    onQueuedPromptAction: input.onQueuedPromptAction,
     onEditorOpen: async ({ value }) => {
       if (closed || renderer.isDestroyed) {
         return

packages/tui/src/mini/runtime.queue.ts

@@ -11,7 +11,7 @@
 import { SessionMessage } from "@opencode-ai/schema/session-message"
 import { Locale } from "../util/locale"
 import { isCompactCommand, isExitCommand, isNewCommand } from "./prompt.shared"
-import type { FooterApi, FooterEvent, RunPrompt } from "./types"
+import type { FooterApi, FooterEvent, RunDelivery, RunPrompt } from "./types"
 
 type Trace = {
   write(type: string, data?: unknown): void
@@ -21,11 +21,11 @@ export type QueueInput = {
   footer: FooterApi
   initialInput?: string
   trace?: Trace
-  onSend?: (prompt: RunPrompt, delivery: "steer" | "queue") => void
+  onSend?: (prompt: RunPrompt, delivery: RunDelivery) => void
   onAdmissionError?: (prompt: RunPrompt, error: unknown) => void | Promise<void>
   onNewSession?: () => void | Promise<void>
   onCompact?: () => void | Promise<void>
-  admit: (prompt: RunPrompt, signal: AbortSignal) => Promise<void>
+  admit: (prompt: RunPrompt, delivery: RunDelivery, signal: AbortSignal) => Promise<void>
   settle: () => Promise<void>
   run: (prompt: RunPrompt, signal: AbortSignal, admitted: () => void) => Promise<void>
 }
@@ -183,7 +183,7 @@ export async function runPromptQueue(input: QueueInput): Promise<void> {
               input.trace?.write("ui.commit", commit)
               input.footer.append(commit)
             }
-            input.onSend?.(sent, "steer")
+            input.onSend?.(sent, sent.delivery ?? "steer")
 
             if (state.closed) {
               break
@@ -276,10 +276,11 @@ export async function runPromptQueue(input: QueueInput): Promise<void> {
       const sent = { ...prompt, messageID: SessionMessage.ID.create() }
       const admission = state.admission
       admissionVersion += 1
-      input.onSend?.(sent, "queue")
+      const delivery = prompt.delivery ?? "queue"
+      input.onSend?.(sent, delivery)
       admissions = admissions
         .then(() => admission)
-        .then(() => input.admit(sent, admissionController.signal))
+        .then(() => input.admit(sent, delivery, admissionController.signal))
         .catch((error) => (state.closed ? undefined : input.onAdmissionError?.(sent, error)))
       return
     }

packages/tui/src/mini/runtime.ts

@@ -390,6 +390,15 @@ async function runInteractiveRuntime(input: RunRuntimeInput, deps: RunRuntimeDep
       log?.write("send.background", { sessionID: state.sessionID })
       void state.sdk.session.background({ sessionID: state.sessionID }).catch(() => {})
     },
+    onQueuedPromptAction: async (action, inputID) => {
+      if (!state.sessionID) return
+      log?.write(`send.pending.${action}`, { sessionID: state.sessionID, inputID })
+      if (action === "steer") {
+        await state.sdk.session.pending.steer({ sessionID: state.sessionID, inputID })
+        return
+      }
+      await state.sdk.session.pending.cancel({ sessionID: state.sessionID, inputID })
+    },
     onSubagentInterrupt: (sessionID) => {
       log?.write("send.subagent.interrupt", { sessionID })
       void state.sdk.session.interrupt({ sessionID }).catch(() => {})
@@ -892,7 +901,7 @@ async function runInteractiveRuntime(input: RunRuntimeInput, deps: RunRuntimeDep
       trace: log,
       onSend: (prompt, delivery) => {
         state.shown = true
-        state.history.push(prompt)
+        state.history.push({ ...prompt, delivery: undefined })
         if (prompt.mode !== "shell" && delivery === "steer") {
           rememberLocal({
             kind: "user",
@@ -903,18 +912,21 @@ async function runInteractiveRuntime(input: RunRuntimeInput, deps: RunRuntimeDep
           })
         }
       },
-      admit: async (prompt, signal) => {
+      admit: async (prompt, delivery, signal) => {
         await state.switching?.catch(() => {})
         const next = await ensureStream()
-        await next.handle.queuePromptTurn({
-          agent: state.agent,
-          model: state.model,
-          variant: state.activeVariant,
-          prompt,
-          files: input.files,
-          includeFiles: false,
-          signal,
-        })
+        await next.handle.admitPromptTurn(
+          {
+            agent: state.agent,
+            model: state.model,
+            variant: state.activeVariant,
+            prompt,
+            files: input.files,
+            includeFiles: false,
+            signal,
+          },
+          delivery,
+        )
       },
       onAdmissionError: renderPromptError,
       onCompact: async () => {

packages/tui/src/mini/stream-v2.subagent.ts

@@ -653,6 +653,10 @@ export function createSubagentTracker(input: SubagentTrackerInput): SubagentTrac
       }
       return
     }
+    if (event.type === "session.input.cancelled") {
+      child.prompts.delete(event.data.inputID)
+      return
+    }
     if (event.type === "session.step.started") {
       touch(child, event.created)
       if (child.label === FALLBACK_LABEL && event.data.agent) child.label = Locale.titlecase(event.data.agent)

packages/tui/src/mini/stream-v2.transport.ts

@@ -26,6 +26,7 @@ import type {
   FooterQueuedPrompt,
   RunFilePart,
   RunInput,
+  RunDelivery,
   RunPrompt,
   RunPromptPart,
   StreamCommit,
@@ -71,7 +72,7 @@ export type SessionResizeReplayInput = {
 
 export type SessionTransport = {
   runPromptTurn(input: SessionTurnInput, admitted?: () => void): Promise<void>
-  queuePromptTurn(input: SessionTurnInput): Promise<void>
+  admitPromptTurn(input: SessionTurnInput, delivery: RunDelivery): Promise<void>
   waitForIdle(): Promise<void>
   interruptActiveTurn(): Promise<void>
   selectSubagent(sessionID: string | undefined): void
@@ -515,8 +516,12 @@ export async function createSessionTransport(input: StreamInput): Promise<Sessio
     )
   }
 
+  let syncedPending: string[] | undefined
   const syncPending = () => {
-    const prompts = [...state.pending.values()]
+    const prompts = [...state.pending.values()].filter((item) => item.delivery === "queue")
+    const ids = prompts.map((item) => item.messageID)
+    if (syncedPending?.length === ids.length && syncedPending.every((id, index) => id === ids[index])) return
+    syncedPending = ids
     input.trace?.write("ui.patch", { pending: prompts.length })
     input.footer.event({ type: "queued.prompts", prompts })
   }
@@ -934,6 +939,36 @@ export async function createSessionTransport(input: StreamInput): Promise<Sessio
       write([], { phase: "running", status: "waiting for assistant" })
       return
     }
+    if (event.type === "session.input.steered") {
+      const pending = state.pending.get(event.data.inputID)
+      if (!pending) return
+      state.pending.set(event.data.inputID, { ...pending, delivery: "steer" })
+      syncPending()
+      if (state.messageIDs.has(event.data.inputID)) return
+      state.messageIDs.add(event.data.inputID)
+      write([
+        {
+          kind: "user",
+          source: "system",
+          text: pending.prompt.text,
+          phase: "start",
+          messageID: event.data.inputID,
+        },
+      ])
+      return
+    }
+    if (event.type === "session.input.queued") {
+      const pending = state.pending.get(event.data.inputID)
+      if (!pending) return
+      state.pending.set(event.data.inputID, { ...pending, delivery: "queue" })
+      syncPending()
+      return
+    }
+    if (event.type === "session.input.cancelled") {
+      state.admitted.delete(event.data.inputID)
+      if (state.pending.delete(event.data.inputID)) syncPending()
+      return
+    }
     if (event.type === "session.step.started") {
       state.stepModel = { providerID: event.data.model.providerID, modelID: event.data.model.id }
       write([], { phase: "running", status: "assistant responding" })
@@ -1577,7 +1612,7 @@ export async function createSessionTransport(input: StreamInput): Promise<Sessio
   let queuedResizeReplay: SessionResizeReplayInput | undefined
   let closing: Promise<void> | undefined
 
-  const admitPrompt = async (next: SessionTurnInput, client: OpenCodeClient, delivery: "steer" | "queue") => {
+  const admitPrompt = async (next: SessionTurnInput, client: OpenCodeClient, delivery: RunDelivery) => {
     const messageID = next.prompt.messageID
     if (!messageID) throw new Error("Prompt message ID is required")
     const command = next.prompt.command
@@ -1643,14 +1678,20 @@ export async function createSessionTransport(input: StreamInput): Promise<Sessio
   }
 
   return {
-    async queuePromptTurn(next) {
+    async admitPromptTurn(next, delivery) {
       if (next.prompt.mode === "shell" || next.prompt.command?.source === "skill")
         throw new Error("This prompt cannot be queued")
       if (!state.connected) throw new Error("Event stream is reconnecting")
       const client = sdk
       if (next.agent)
         await client.session.switchAgent({ sessionID: input.sessionID, agent: next.agent }, { signal: next.signal })
-      mergePending(await admitPrompt(next, client, "queue"))
+      if (!next.prompt.command) {
+        const selected = await resolveSelectedModel(input, client, next)
+        if (next.variant && !selected) throw new Error("Cannot select a variant before selecting a model")
+        if (selected)
+          await client.session.switchModel({ sessionID: input.sessionID, model: selected }, { signal: next.signal })
+      }
+      mergePending(await admitPrompt(next, client, delivery))
       settlementClient = client
     },
     async waitForIdle() {
@@ -1688,7 +1729,7 @@ export async function createSessionTransport(input: StreamInput): Promise<Sessio
         return
       }
       if (command) {
-        await runTurnWait(next, messageID, client, () => admitPrompt(next, client, "steer"), admitted)
+        await runTurnWait(next, messageID, client, () => admitPrompt(next, client, next.prompt.delivery ?? "steer"), admitted)
         return
       }
 
@@ -1700,7 +1741,7 @@ export async function createSessionTransport(input: StreamInput): Promise<Sessio
       if (selected)
         await client.session.switchModel({ sessionID: input.sessionID, model: selected }, { signal: next.signal })
 
-      await runTurnWait(next, messageID, client, () => admitPrompt(next, client, "steer"), admitted)
+      await runTurnWait(next, messageID, client, () => admitPrompt(next, client, next.prompt.delivery ?? "steer"), admitted)
     },
     async interruptActiveTurn() {
       // A running shell holds no drain, so session.interrupt cannot reach it;

packages/tui/src/mini/types.ts

@@ -23,6 +23,7 @@ import type {
 } from "@opencode-ai/client/promise"
 import type { Config } from "../config"
 import type { CliRenderer } from "@opentui/core"
+import type { SessionPending } from "@opencode-ai/schema/session-pending"
 
 export type RunFilePart = {
   type: "file"
@@ -71,10 +72,13 @@ export type RunProvider = {
   models: Record<string, RunProviderModel>
 }
 
+export type RunDelivery = SessionPending.Delivery
+
 export type RunPrompt = {
   messageID?: string
   text: string
   parts: RunPromptPart[]
+  delivery?: RunDelivery
   mode?: "shell"
   command?: {
     name: string
@@ -87,9 +91,11 @@ export type RunPrompt = {
 export type FooterQueuedPrompt = {
   messageID: string
   prompt: RunPrompt
-  delivery: "steer" | "queue"
+  delivery: RunDelivery
 }
 
+export type QueuedPromptAction = "steer" | "cancel"
+
 export type RunAgent = {
   id: string
   name: string

packages/tui/src/routes/session/form.tsx

@@ -67,6 +67,7 @@ export function FormPrompt(props: { form: FormWithLocation }) {
   })
 
   let textarea: TextareaRenderable | undefined
+  let editingReady = false
   let review: ScrollBoxRenderable | undefined
 
   const message = createMemo(() => {
@@ -175,6 +176,23 @@ export function FormPrompt(props: { form: FormWithLocation }) {
     return answer === value
   })
 
+  onCleanup(
+    keymap.intercept("key", ({ event, consume }) => {
+      if (keymap.mode.current() !== FORM_MODE) return
+      if (textual() || !other() || (store.editing && editingReady)) return
+      if (event.ctrl || event.meta || event.option || event.super || event.hyper) return
+      if (!/^[^\p{C}\p{Zl}\p{Zp}]$/u.test(event.sequence)) return
+      const current = answerField()
+      if (!current) return
+      setStore("custom", { ...store.custom, [current.key]: input() + event.sequence })
+      if (!store.editing) {
+        editingReady = false
+        setStore("editing", true)
+      }
+      consume()
+    }),
+  )
+
   function answer(key: string, value: FormValue | undefined) {
     setStore("answers", { ...store.answers, [key]: value })
     setStore("error", "")
@@ -870,8 +888,10 @@ export function FormPrompt(props: { form: FormWithLocation }) {
                             textarea = val
                             val.traits = { status: "ANSWER" }
                             queueMicrotask(() => {
+                              val.setText(input())
                               val.focus()
                               val.gotoLineEnd()
+                              editingReady = true
                             })
                           }}
                           initialValue={input()}

packages/tui/src/routes/session/index.tsx

@@ -52,6 +52,7 @@ import { useClient } from "../../context/client"
 import { useEditorContext } from "../../context/editor"
 import { openEditor } from "../../editor"
 import { useDialog } from "../../ui/dialog"
+import { DialogSelect } from "../../ui/dialog-select"
 import { DialogSessionRename } from "../../component/dialog-session-rename"
 import { DialogMessage } from "./dialog-message"
 import { DialogFork } from "./dialog-fork"
@@ -97,6 +98,8 @@ import { stringWidth } from "../../util/string-width"
 import { useArgs } from "../../context/args"
 import { withTimestampedFallback } from "@opencode-ai/util/session-title-fallback"
 import { useSessionTabs } from "../../context/session-tabs"
+import { createSingleFlight } from "../../util/single-flight"
+import type { SessionPending } from "@opencode-ai/schema/session-pending"
 
 addDefaultParsers(parsers.parsers)
 
@@ -109,6 +112,7 @@ const NAVIGATION_SLACK_ID = "session-navigation-slack"
 const TRANSCRIPT_TAIL_ROWS = 40
 const TRANSCRIPT_BACKFILL_CHUNK = 60
 const TRANSCRIPT_BACKFILL_DELAY = 120
+type PendingAction = "steer" | "queue" | "cancel"
 
 const context = createContext<{
   width: number
@@ -120,6 +124,8 @@ const context = createContext<{
   diffWrapMode: () => "word" | "none"
   models: () => ModelInfo[]
   config: ReturnType<typeof useConfig>["data"]
+  mutatePending: (action: PendingAction, inputID: string) => Promise<boolean>
+  pendingDelivery: (inputID: string) => SessionPending.Delivery | undefined
 }>()
 
 function use() {
@@ -175,6 +181,13 @@ export function Session() {
       .flatMap((sessionID) => data.session.form.list(sessionID) ?? [])
       .concat(global)
   })
+  const pendingUsers = createMemo(() =>
+    data.session.pending.list(route.sessionID).flatMap((item) => (item.type === "user" ? [item] : [])),
+  )
+  const pendingDeliveries = createMemo(() => new Map(pendingUsers().map((item) => [item.id, item.delivery])))
+  const queuedPrompts = createMemo(() =>
+    pendingUsers().flatMap((item) => (item.delivery === "queue" ? [{ id: item.id, text: item.data.text }] : [])),
+  )
   const [composer, setComposer] = createStore({
     open: false,
     tab: undefined as string | undefined,
@@ -369,6 +382,55 @@ export function Session() {
   })
   const dialog = useDialog()
   const renderer = useRenderer()
+  const runPendingAction = createSingleFlight<string>()
+  const mutatePending = async (action: PendingAction, inputID: string) => {
+    const result = await runPendingAction(inputID, async () => {
+      const request =
+        action === "steer"
+          ? client.api.session.pending.steer({ sessionID: route.sessionID, inputID })
+          : action === "queue"
+            ? client.api.session.pending.queue({ sessionID: route.sessionID, inputID })
+            : client.api.session.pending.cancel({ sessionID: route.sessionID, inputID })
+      const error = await request.then(
+        () => undefined,
+        (error) => error,
+      )
+      if (!error) return true
+      const label = action === "cancel" ? "delete" : action
+      toast.show({ title: `Failed to ${label} pending prompt`, message: errorMessage(error), variant: "error" })
+      return false
+    })
+    return result ?? false
+  }
+  const openQueuedPrompts = () =>
+    dialog.replace(() => (
+      <DialogSelect
+        title="Queued prompts"
+        options={queuedPrompts().map((prompt, index) => ({
+          title: prompt.text,
+          value: prompt.id,
+          footer: `${index + 1} of ${queuedPrompts().length}`,
+        }))}
+        onSelect={(option) => {
+          void mutatePending("steer", option.value).then((steered) => {
+            if (steered) dialog.clear()
+          })
+        }}
+        actions={[
+          {
+            command: "queued_prompt.delete",
+            title: "delete",
+            onTrigger: (option) => {
+              const last = queuedPrompts().length === 1
+              void mutatePending("cancel", option.value).then((cancelled) => {
+                if (cancelled && last) dialog.clear()
+              })
+            },
+          },
+        ]}
+        footerHints={[{ title: "steer", label: "enter" }]}
+      />
+    ))
   const unavailable = (feature: string) => {
     toast.show({ message: `${feature} is not implemented for V2 sessions yet`, variant: "error", duration: 5000 })
     dialog.clear()
@@ -871,6 +933,13 @@ export function Session() {
         dialog.clear()
       },
     },
+    {
+      title: "View queued prompts",
+      id: "session.queued_prompts",
+      group: "Session",
+      enabled: queuedPrompts().length > 0,
+      run: openQueuedPrompts,
+    },
     {
       title: "Go to parent session",
       id: "session.parent",
@@ -942,6 +1011,8 @@ export function Session() {
         diffWrapMode,
         models,
         config,
+        mutatePending,
+        pendingDelivery: (inputID) => pendingDeliveries().get(inputID),
       }}
     >
       <box flexDirection="row" flexGrow={1} minHeight={0}>
@@ -997,6 +1068,9 @@ export function Session() {
               </Show>
             </scrollbox>
             <box flexShrink={0}>
+              <Show when={!composer.open && !disabled() && queuedPrompts().length > 0}>
+                <QueuedPromptDock prompts={queuedPrompts()} onOpen={openQueuedPrompts} />
+              </Show>
               <PluginSlot name="session.composer.top" input={{ sessionID: route.sessionID }} mode="all" />
               <Composer
                 sessionID={route.sessionID}
@@ -1032,6 +1106,11 @@ export function Session() {
                     onSubmit={() => {
                       toBottom()
                     }}
+                    onEmptySubmit={async () => {
+                      const next = queuedPrompts()[0]
+                      if (!next) return false
+                      return mutatePending("steer", next.id)
+                    }}
                     sessionID={route.sessionID}
                   />
                 </Match>
@@ -1813,6 +1892,7 @@ function ShellMessage(props: { message: Extract<SessionMessageInfo, { type: "she
 
   return (
     <box
+      width="100%"
       border={["left"]}
       paddingTop={1}
       paddingBottom={1}
@@ -1840,18 +1920,20 @@ function UserMessage(props: { message: SessionMessageUser }) {
   const mode = themes.mode
   const [hover, setHover] = createSignal(false)
   const color = createMemo(() => local.agent.color(data.session.get(ctx.sessionID)?.agent ?? "build"))
-  const queued = createMemo(
-    () => data.session.status(ctx.sessionID) === "running" && data.session.input.has(ctx.sessionID, props.message.id),
-  )
+  const delivery = createMemo(() => ctx.pendingDelivery(props.message.id))
   const dialog = useDialog()
   const renderer = useRenderer()
   const promptRef = usePromptRef()
 
+  const updatePendingSteer = async (action: "queue" | "cancel") => {
+    if (await ctx.mutatePending(action, props.message.id)) dialog.clear()
+  }
+
   return (
     <Show when={props.message.text.trim() || files().length}>
       <box
         border={["left"]}
-        borderColor={queued() ? theme.border.default : color()}
+        borderColor={delivery() ? theme.border.default : color()}
         customBorderChars={SplitBorder.customBorderChars}
       >
         <box
@@ -1863,6 +1945,21 @@ function UserMessage(props: { message: SessionMessageUser }) {
           }}
           onMouseUp={() => {
             if (renderer.getSelection()?.getSelectedText()) return
+            if (delivery() === "steer") {
+              dialog.replace(() => (
+                <DialogSelect
+                  title="Pending steer"
+                  options={[
+                    { title: "Move to queue", value: "queue" as const },
+                    { title: "Delete", value: "cancel" as const },
+                  ]}
+                  onSelect={(option) => {
+                    void updatePendingSteer(option.value)
+                  }}
+                />
+              ))
+              return
+            }
             dialog.replace(() => (
               <DialogMessage
                 messageID={props.message.id}
@@ -1910,6 +2007,35 @@ function UserMessage(props: { message: SessionMessageUser }) {
   )
 }
 
+function QueuedPromptDock(props: { prompts: { id: string; text: string }[]; onOpen: () => void }) {
+  const theme = useTheme("elevated")
+  const next = createMemo(() => props.prompts[0]?.text)
+
+  return (
+    <box
+      border={["left"]}
+      borderColor={theme.border.default}
+      customBorderChars={SplitBorder.customBorderChars}
+      onMouseUp={props.onOpen}
+    >
+      <box
+        width="100%"
+        paddingTop={1}
+        paddingBottom={1}
+        paddingLeft={2}
+        paddingRight={1}
+        backgroundColor={theme.background.default}
+        flexDirection="row"
+      >
+        <text fg={theme.text.subdued} wrapMode="none" truncate flexGrow={1} flexShrink={1} minWidth={0}>
+          <span style={{ fg: theme.text.default }}>{props.prompts.length} queued</span>
+          <Show when={next()}>{(text) => <> · {text()}</>}</Show>
+        </text>
+      </box>
+    </box>
+  )
+}
+
 function AssistantRetry(props: { retry: SessionMessageAssistant["retry"] }) {
   const theme = useTheme()
   return (

packages/tui/src/routes/session/rows.ts

@@ -46,9 +46,14 @@ export function createSessionRows(sessionID: Accessor<string>) {
   function reduce() {
     const messages = data.session.message.list(sessionID())
     const inputs = new Set(data.session.input.list(sessionID()))
+    const pending = data.session.pending.list(sessionID())
+    const queued = new Set(
+      pending.flatMap((item) => (item.type === "user" && item.delivery === "queue" ? [item.id] : [])),
+    )
+    const visible = queued.size === 0 ? messages : messages.filter((message) => !queued.has(message.id))
     const boundary = revertBoundary()
     const rows = reduceSessionRows(
-      boundary ? messages.filter((message) => message.id < boundary) : messages,
+      boundary ? visible.filter((message) => message.id < boundary) : visible,
       inputs,
       turnTokens(),
     )
@@ -57,8 +62,7 @@ export function createSessionRows(sessionID: Accessor<string>) {
     rows.splice(
       position === -1 ? rows.length : position,
       0,
-      ...data.session.pending
-        .list(sessionID())
+      ...pending
         .filter((item) => item.type === "compaction")
         .map((item): SessionRow => ({ type: "compaction-queued", inputID: item.id })),
     )
@@ -112,10 +116,11 @@ export function createSessionRows(sessionID: Accessor<string>) {
   createEffect(
     on(
       () =>
-        data.session.pending
-          .list(sessionID())
-          .filter((item) => item.type === "compaction")
-          .map((item) => item.id),
+        data.session.pending.list(sessionID()).flatMap((item) => {
+          if (item.type === "compaction") return [`${item.id}:compaction`]
+          if (item.type === "user" && item.delivery === "queue") return [`${item.id}:queue`]
+          return []
+        }),
       () => setRows(reconcile(reduce())),
       { defer: true },
     ),
@@ -196,7 +201,9 @@ export function createSessionRows(sessionID: Accessor<string>) {
 
   const queuedStart = (rows: SessionRow[]) => {
     const index = rows.findIndex(
-      (row) => row.type === "compaction-queued" || (row.type === "message" && isPending(row.messageID)),
+      (row) =>
+        row.type === "compaction-queued" ||
+        (row.type === "message" && isPending(row.messageID)),
     )
     return index === -1 ? rows.length : index
   }

packages/tui/src/util/single-flight.ts

@@ -0,0 +1,12 @@
+export function createSingleFlight<Key>() {
+  const pending = new Set<Key>()
+  return async <Value>(key: Key, run: () => Promise<Value>) => {
+    if (pending.has(key)) return
+    pending.add(key)
+    try {
+      return await run()
+    } finally {
+      pending.delete(key)
+    }
+  }
+}

packages/tui/src/util/tool-display.ts

@@ -22,6 +22,7 @@ export function primitiveInputSummary(input: Record<string, unknown>, omit: read
 export function webSearchProviderLabel(provider: unknown) {
   if (provider === "parallel") return "Parallel Web Search"
   if (provider === "exa") return "Exa Web Search"
+  if (provider === "firecrawl") return "Firecrawl Web Search"
   return "Web Search"
 }
 

packages/tui/test/cli/tui/data.test.tsx

@@ -914,6 +914,106 @@ test("completes exploration when a queued prompt is promoted", async () => {
   }
 })
 
+test("updates and removes queued inputs from durable lifecycle events", async () => {
+  const events = createEventStream()
+  const sessionID = "session-queue-management"
+  const calls = createFetch((url) => {
+    if (url.pathname === `/api/session/${sessionID}/message`) return json({ data: [], cursor: {} })
+  }, events)
+  let data!: ReturnType<typeof useData>
+  let rows!: ReturnType<typeof createSessionRows>
+  let client!: ReturnType<typeof useClient>
+
+  function Probe() {
+    client = useClient()
+    data = useData()
+    rows = createSessionRows(() => sessionID)
+    return <box />
+  }
+
+  const app = await testRender(() => (
+    <TestTuiContexts>
+      <ClientProvider api={createApi(calls.fetch)}>
+        <ProjectProvider>
+          <DataProvider>
+            <Probe />
+          </DataProvider>
+        </ProjectProvider>
+      </ClientProvider>
+    </TestTuiContexts>
+  ))
+
+  try {
+    await wait(() => client.connection.status() === "connected")
+    emitEvent(events, {
+      id: "evt_queue_admitted",
+      created: 1,
+      type: "session.input.admitted",
+      durable: durable(sessionID),
+      data: {
+        sessionID,
+        inputID: "message-queued",
+        input: { type: "user", data: { text: "Steer me" }, delivery: "queue" },
+      },
+    })
+    await wait(() => data.session.pending.list(sessionID).length === 1)
+    expect(rows).not.toContainEqual({ type: "message", messageID: "message-queued" })
+
+    emitEvent(events, {
+      id: "evt_queue_steered",
+      created: 2,
+      type: "session.input.steered",
+      durable: durable(sessionID, 1),
+      data: { sessionID, inputID: "message-queued" },
+    })
+    await wait(() =>
+      data.session.pending
+        .list(sessionID)
+        .some((item) => item.id === "message-queued" && item.type !== "compaction" && item.delivery === "steer"),
+    )
+    expect(rows).toContainEqual({ type: "message", messageID: "message-queued" })
+
+    emitEvent(events, {
+      id: "evt_queue_restored",
+      created: 3,
+      type: "session.input.queued",
+      durable: durable(sessionID, 2),
+      data: { sessionID, inputID: "message-queued" },
+    })
+    await wait(() =>
+      data.session.pending
+        .list(sessionID)
+        .some((item) => item.id === "message-queued" && item.type !== "compaction" && item.delivery === "queue"),
+    )
+    expect(rows).not.toContainEqual({ type: "message", messageID: "message-queued" })
+
+    emitEvent(events, {
+      id: "evt_cancel_admitted",
+      created: 4,
+      type: "session.input.admitted",
+      durable: durable(sessionID, 3),
+      data: {
+        sessionID,
+        inputID: "message-cancelled",
+        input: { type: "user", data: { text: "Delete me" }, delivery: "queue" },
+      },
+    })
+    await wait(() => data.session.pending.list(sessionID).length === 2)
+    emitEvent(events, {
+      id: "evt_queue_cancelled",
+      created: 5,
+      type: "session.input.cancelled",
+      durable: durable(sessionID, 4),
+      data: { sessionID, inputID: "message-cancelled" },
+    })
+    await wait(() => !data.session.input.has(sessionID, "message-cancelled"))
+    expect(data.session.pending.list(sessionID).map((item) => item.id)).toEqual(["message-queued"])
+    expect(data.session.message.get(sessionID, "message-cancelled")).toBeUndefined()
+  } finally {
+    app.renderer.destroy()
+  }
+})
+
 test("classifies live tool rows independently of their call ID", async () => {
   const events = createEventStream()
   const sessionID = "session-tool-call-id"

packages/tui/test/cli/tui/form.test.tsx

@@ -15,7 +15,7 @@ import { TestTuiContexts } from "../../fixture/tui-environment"
 import { createTuiResolvedConfig } from "../../fixture/tui-runtime"
 import { createApi, createEventStream, createFetch } from "../../fixture/tui-client"
 
-async function mountForm(root: string, width = 80) {
+async function mountForm(root: string, width = 80, input?: FormWithLocation) {
   const state = path.join(root, "state")
   await mkdir(state, { recursive: true })
 
@@ -33,7 +33,7 @@ async function mountForm(root: string, width = 80) {
     events,
   )
   const config = createTuiResolvedConfig()
-  const form = {
+  const form = input ?? ({
     id: "frm_test",
     sessionID: "ses_test",
     title: "Authorization required",
@@ -45,7 +45,7 @@ async function mountForm(root: string, width = 80) {
         title: "Authorize access",
       },
     ],
-  } satisfies FormWithLocation
+  } satisfies FormWithLocation)
   const { FormPrompt } = await import("../../../src/routes/session/form")
 
   function Harness() {
@@ -84,7 +84,7 @@ async function mountForm(root: string, width = 80) {
 
   const app = await testRender(() => <Harness />, { width, height: 20, kittyKeyboard: true })
   app.renderer.start()
-  await app.waitForFrame((frame) => frame.includes("Authorization required"))
+  await app.waitForFrame((frame) => frame.includes(form.title))
   return { app, copied, replies }
 }
 
@@ -126,3 +126,32 @@ test("includes external acknowledgements in progress", async () => {
     prompt.app.renderer.destroy()
   }
 })
+
+test("typing starts a highlighted custom answer without losing the first character", async () => {
+  await using tmp = await tmpdir()
+  const prompt = await mountForm(tmp.path, 80, {
+    id: "frm_test",
+    sessionID: "ses_test",
+    title: "Choose a target",
+    fields: [
+      {
+        key: "target",
+        type: "string",
+        options: [{ value: "production", label: "Production" }],
+        custom: true,
+      },
+    ],
+  })
+  try {
+    prompt.app.mockInput.pressKey("x")
+    await prompt.app.renderOnce()
+    expect(prompt.app.renderer.currentFocusedEditor).toBeNull()
+
+    prompt.app.mockInput.pressKey("j")
+    await prompt.app.mockInput.typeText("123")
+    await prompt.app.waitFor(() => prompt.app.renderer.currentFocusedEditor?.plainText === "123")
+    expect(prompt.app.renderer.currentFocusedEditor?.plainText).toBe("123")
+  } finally {
+    prompt.app.renderer.destroy()
+  }
+})

packages/tui/test/mini/fixture/footer-api.ts

@@ -56,9 +56,9 @@ export function createFooterApiFixture(input: { events?: FooterEvent[]; commits?
     commits,
     calls,
     promptReady,
-    submit(text: string, mode?: RunPrompt["mode"]) {
+    submit(text: string, mode?: RunPrompt["mode"], delivery?: RunPrompt["delivery"]) {
       if (prompts.size === 0) return false
-      const prompt: RunPrompt = mode ? { text, parts: [], mode } : { text, parts: [] }
+      const prompt: RunPrompt = { text, parts: [], ...(mode ? { mode } : {}), ...(delivery ? { delivery } : {}) }
       for (const fn of [...prompts]) fn(prompt)
       return true
     },

packages/tui/test/mini/footer.view.test.tsx

@@ -21,6 +21,7 @@ import { RunFooterView } from "../../src/mini/footer.view"
 import { RunEntryContent } from "../../src/mini/scrollback.writer"
 import { RUN_THEME_FALLBACK, type RunTheme } from "../../src/mini/theme"
 import type {
+  FooterQueuedPrompt,
   FooterState,
   FooterSubagentState,
   FooterSubagentTab,
@@ -120,13 +121,15 @@ async function renderFooter(
     height?: number
     state?: Partial<FooterState>
     onCycle?: () => void
-    onSubmit?: (prompt: RunPrompt) => boolean
+    onSubmit?: (prompt: RunPrompt) => boolean | Promise<boolean>
     view?: FooterView
     onFormReply?: (input: unknown) => void
     miniSettings?: MiniSettings
     mono?: boolean
     onStatus?: (status: string) => void
     onMiniSettingChange?: (change: MiniSettingChange) => void
+    queuedPrompts?: FooterQueuedPrompt[]
+    onQueuedPromptAction?: (action: "steer" | "cancel", inputID: string) => Promise<void>
   } = {},
 ) {
   const [view, setView] = createSignal<FooterView>(input.view ?? { type: "prompt" })
@@ -164,6 +167,7 @@ async function renderFooter(
           state={state}
           view={view}
           subagent={subagents}
+          queuedPrompts={() => input.queuedPrompts ?? []}
           theme={input.theme ?? (() => RUN_THEME_FALLBACK)}
           mono={input.mono ?? false}
           miniSettings={miniSettings}
@@ -173,6 +177,7 @@ async function renderFooter(
           onFormCancel={() => {}}
           onCycle={input.onCycle ?? (() => {})}
           onInterrupt={() => false}
+          onQueuedPromptAction={input.onQueuedPromptAction}
           onEditorOpen={async () => undefined}
           onInputClear={() => {}}
           onExit={() => {}}
@@ -272,6 +277,37 @@ test("direct footer preserves a partial multi-field form draft across permission
   }
 })
 
+test("direct footer typing starts a highlighted custom answer without losing the first character", async () => {
+  const request: FormInfo = {
+    id: "frm_custom",
+    sessionID: "ses_child",
+    title: "Choose a target",
+    fields: [
+      {
+        key: "target",
+        type: "string",
+        options: [{ value: "production", label: "Production" }],
+        custom: true,
+      },
+    ],
+  }
+  const app = await renderFooter({ height: 12, view: { type: "form", request } })
+
+  try {
+    await app.renderOnce()
+    app.mockInput.pressKey("x")
+    await app.renderOnce()
+    expect(app.renderer.currentFocusedEditor).toBeNull()
+
+    app.mockInput.pressKey("j")
+    await app.mockInput.typeText("hello")
+    await app.waitFor(() => app.renderer.currentFocusedEditor?.plainText === "hello")
+    expect(app.renderer.currentFocusedEditor?.plainText).toBe("hello")
+  } finally {
+    app.cleanup()
+  }
+})
+
 function expectPaletteList(list: BoxRenderable, selectedIndex: number) {
   expect(list.backgroundColor.toInts()).toEqual((RUN_THEME_FALLBACK.footer.shade as RGBA).toInts())
   expect((list.getChildren()[selectedIndex] as BoxRenderable).backgroundColor.toInts()).toEqual(
@@ -913,7 +949,7 @@ test("direct subagent panel closes when moving up from the first item", async ()
   }
 })
 
-test("direct pending panel shows durable delivery without edit actions", async () => {
+test("direct queued panel steers and deletes selected prompts", async () => {
   const [prompts] = createSignal([
     {
       messageID: "m-1",
@@ -921,16 +957,22 @@ test("direct pending panel shows durable delivery without edit actions", async (
       delivery: "queue" as const,
     },
   ])
+  const steered: string[] = []
+  const deleted: string[] = []
 
   const app = await testRender(
     () => (
-      <box width={100} height={RUN_SUBAGENT_PANEL_ROWS}>
-        <RunQueuedPromptSelectBody
-          theme={() => RUN_THEME_FALLBACK.footer}
-          prompts={prompts}
-          onClose={() => {}}
-        />
-      </box>
+      <Keymap.Provider config={tuiConfig}>
+        <box width={100} height={RUN_SUBAGENT_PANEL_ROWS}>
+          <RunQueuedPromptSelectBody
+            theme={() => RUN_THEME_FALLBACK.footer}
+            prompts={prompts}
+            onClose={() => {}}
+            onSteer={(prompt) => steered.push(prompt.messageID)}
+            onDelete={(prompt) => deleted.push(prompt.messageID)}
+          />
+        </box>
+      </Keymap.Provider>
     ),
     { width: 100, height: RUN_SUBAGENT_PANEL_ROWS },
   )
@@ -940,19 +982,98 @@ test("direct pending panel shows durable delivery without edit actions", async (
     const frame = app.captureCharFrame()
     const list = panelMenu(app.renderer.root)
 
-    expect(frame).toContain("Pending work")
+    expect(frame).toContain("Queued prompts")
     expect(frame).toContain("fix the auth test")
-    expect(frame).toContain("queue")
+    expect(frame).toContain("queued")
+    expect(frame).toContain("enter steer · ctrl+d delete")
     expect(frame).not.toContain("┌")
     expect(frame).not.toContain("┃")
     expectPaletteList(list, 0)
-    expect(frame).not.toContain("edit")
-    expect(frame).not.toContain("remove")
+    app.mockInput.pressEnter()
+    app.mockInput.pressKey("d", { ctrl: true })
+    expect(steered).toEqual(["m-1"])
+    expect(deleted).toEqual(["m-1"])
   } finally {
     app.renderer.destroy()
   }
 })
 
+test("direct footer steers the oldest queued prompt from an empty composer", async () => {
+  const steered: string[] = []
+  const app = await renderFooter({
+    queuedPrompts: [
+      { messageID: "m-1", prompt: { text: "first", parts: [] }, delivery: "queue" },
+      { messageID: "m-2", prompt: { text: "second", parts: [] }, delivery: "queue" },
+    ],
+    onQueuedPromptAction: async (action, inputID) => {
+      if (action === "steer") steered.push(inputID)
+    },
+  })
+
+  try {
+    await app.renderOnce()
+    app.mockInput.pressEnter({ meta: true })
+    await Bun.sleep(0)
+    expect(steered).toEqual([])
+    app.mockInput.pressEnter()
+    await Bun.sleep(0)
+    expect(steered).toEqual(["m-1"])
+  } finally {
+    app.cleanup()
+  }
+})
+
+test("direct footer does not steer queued work on a double submit", async () => {
+  const submitted: RunPrompt[] = []
+  const steered: string[] = []
+  const app = await renderFooter({
+    queuedPrompts: [{ messageID: "m-1", prompt: { text: "queued", parts: [] }, delivery: "queue" }],
+    onSubmit: async (prompt) => {
+      submitted.push(prompt)
+      await Bun.sleep(10)
+      return true
+    },
+    onQueuedPromptAction: async (action, inputID) => {
+      if (action === "steer") steered.push(inputID)
+    },
+  })
+
+  try {
+    await app.renderOnce()
+    await app.mockInput.typeText("send once")
+    app.mockInput.pressEnter()
+    app.mockInput.pressEnter()
+    await Bun.sleep(20)
+    expect(submitted).toHaveLength(1)
+    expect(steered).toEqual([])
+  } finally {
+    app.cleanup()
+  }
+})
+
+test("direct footer rejects local commands submitted with the queue shortcut", async () => {
+  const submitted: RunPrompt[] = []
+  const statuses: string[] = []
+  const app = await renderFooter({
+    onSubmit: (prompt) => {
+      submitted.push(prompt)
+      return true
+    },
+    onStatus: (status) => statuses.push(status),
+  })
+
+  try {
+    await app.renderOnce()
+    await app.mockInput.typeText("/settings ")
+    app.mockInput.pressEnter({ meta: true })
+    await Bun.sleep(0)
+    expect(submitted).toEqual([])
+    expect(statuses).toContain("this prompt cannot be queued")
+  } finally {
+    app.cleanup()
+  }
+})
+
 // OpenTUI currently crashes Bun in the full `test/cli/run` directory run here.
 // Re-enable after the upstream OpenTUI fix lands in this repo.
 test.skip("direct footer recreates the frame across command panel transitions", async () => {
@@ -1068,11 +1189,11 @@ test("direct footer submits slash autocomplete selections without dispatching sh
     await app.renderOnce()
 
     expect(submits).toEqual([
-      { text: "/review ", parts: [], command: { name: "review", arguments: "" } },
-      { text: "/review ", parts: [], command: { name: "review", arguments: "" } },
-      { text: "/review branch", parts: [], command: { name: "review", arguments: "branch" } },
-      { text: "/new ", parts: [] },
-      { text: "/new ", parts: [] },
+      { text: "/review ", parts: [], command: { name: "review", arguments: "" }, delivery: "steer" },
+      { text: "/review ", parts: [], command: { name: "review", arguments: "" }, delivery: "steer" },
+      { text: "/review branch", parts: [], command: { name: "review", arguments: "branch" }, delivery: "steer" },
+      { text: "/new ", parts: [], delivery: "steer" },
+      { text: "/new ", parts: [], delivery: "steer" },
     ])
     expect(app.renderer.currentFocusedEditor?.plainText).toBe("/settings ")
   } finally {
@@ -1100,7 +1221,9 @@ test("direct footer slash autocomplete keeps a real skills command", async () =>
     app.mockInput.pressEnter()
     await app.renderOnce()
 
-    expect(submits).toEqual([{ text: "/skills ", parts: [], command: { name: "skills", arguments: "" } }])
+    expect(submits).toEqual([
+      { text: "/skills ", parts: [], command: { name: "skills", arguments: "" }, delivery: "steer" },
+    ])
     expect(app.captureCharFrame()).not.toContain("Apply formatter fixes")
   } finally {
     app.cleanup()
@@ -1158,7 +1281,12 @@ test("direct footer tags skill slash submissions with their catalog source", asy
     await app.renderOnce()
 
     expect(submits).toEqual([
-      { text: "/formatter src", parts: [], command: { name: "formatter", arguments: "src", source: "skill" } },
+      {
+        text: "/formatter src",
+        parts: [],
+        command: { name: "formatter", arguments: "src", source: "skill" },
+        delivery: "steer",
+      },
     ])
   } finally {
     app.cleanup()
@@ -1238,7 +1366,7 @@ test.skip("direct footer clears the synthetic skills draft when the panel closes
   }
 })
 
-test("direct footer shows authoritative pending work while running", async () => {
+test("direct footer shows authoritative queued work while running", async () => {
   const [state] = createSignal<FooterState>({
     phase: "running",
     status: "",
@@ -1342,9 +1470,9 @@ test("direct footer shows authoritative pending work while running", async () =>
     const hint = statusItems.at(-1)!
 
     expect(spinner).toBeDefined()
-    expect(frame).toContain("1 pending")
+    expect(frame).toContain("1 queued")
     expect(frame).toContain("ctrl+b background")
-    expect(frame).toContain("ctrl+x q 1 pending")
+    expect(frame).toContain("ctrl+x q 1 queued")
     expect(frame).toContain("↓ subagents")
     expect(frame).toContain("ctrl+p cmd")
     expect(frame).toContain("subagents · ctrl+p cmd")

packages/tui/test/mini/runtime.boot.test.ts

@@ -82,7 +82,8 @@ describe("run runtime boot", () => {
     expect(result.keybinds.get("prompt.history.next")?.[0]?.key).toBe("down")
     expect(result.keybinds.get("prompt.clear")?.[0]?.key).toBe("ctrl+c")
     expect(result.keybinds.get("input.submit")?.[0]?.key).toBe("return")
-    expect(result.keybinds.get("input.newline")?.[0]?.key).toBe("shift+return,ctrl+return,alt+return,ctrl+j")
+    expect(result.keybinds.get("input.newline")?.[0]?.key).toBe("shift+return,ctrl+return,ctrl+j")
+    expect(result.keybinds.get("prompt.queue")?.[0]?.key).toBe("alt+return")
   })
 
   test("preserves disabled leader from resolved tui config", async () => {

packages/tui/test/mini/runtime.queue.test.ts

@@ -265,6 +265,33 @@ describe("run runtime queue", () => {
     await task
   })
 
+  test("preserves explicit steer and queue delivery for in-flight prompts", async () => {
+    const ui = createFooterApiFixture()
+    const admitted: string[] = []
+    const gate = Promise.withResolvers<void>()
+
+    const task = runPromptQueue({
+      footer: ui.api,
+      run: async (_input, _signal, onAdmitted) => {
+        onAdmitted()
+        await gate.promise
+      },
+      admit: async (input, delivery) => {
+        admitted.push(`${input.text}:${delivery}`)
+      },
+      settle: async () => ui.api.close(),
+    })
+
+    ui.submit("one")
+    ui.submit("two", undefined, "steer")
+    ui.submit("three", undefined, "queue")
+    while (admitted.length < 2) await Bun.sleep(0)
+    expect(admitted).toEqual(["two:steer", "three:queue"])
+
+    gate.resolve()
+    await task
+  })
+
   test("continues durable admission after one fails", async () => {
     const ui = createFooterApiFixture()
     const admitted: string[] = []
@@ -308,7 +335,7 @@ describe("run runtime queue", () => {
         admitted()
         await new Promise<void>((resolve) => signal.addEventListener("abort", () => resolve(), { once: true }))
       },
-      admit: async (_prompt, signal) => {
+      admit: async (_prompt, _delivery, signal) => {
         admissionStarted.resolve()
         await new Promise<void>((resolve) => {
           if (signal.aborted) {

packages/tui/test/mini/runtime.test.ts

@@ -126,7 +126,7 @@ describe("run interactive runtime", () => {
                 turnStarted.resolve()
                 api.close()
               },
-              queuePromptTurn: async () => {},
+              admitPromptTurn: async () => {},
               waitForIdle: async () => {},
               interruptActiveTurn: async () => {},
               selectSubagent: () => {},
@@ -209,7 +209,7 @@ describe("run interactive runtime", () => {
             streamStarted.resolve()
             return {
               runPromptTurn: async () => {},
-              queuePromptTurn: async () => {},
+              admitPromptTurn: async () => {},
               waitForIdle: async () => {},
               interruptActiveTurn: async () => {},
               selectSubagent: () => {},
@@ -556,7 +556,7 @@ describe("run interactive runtime", () => {
             setTimeout(() => input.footer.close(), 0)
             return {
               runPromptTurn: async () => {},
-              queuePromptTurn: async () => {},
+              admitPromptTurn: async () => {},
               waitForIdle: async () => {},
               interruptActiveTurn: async () => {},
               selectSubagent: () => {},

packages/tui/test/mini/stream-v2.transport.test.ts

@@ -669,6 +669,14 @@ describe("V2 mini transport", () => {
             data: { text: "follow up" },
             delivery: "queue",
           },
+          {
+            id: "msg_cancelled",
+            sessionID: "ses_1",
+            timeCreated: 2,
+            type: "user",
+            data: { text: "remove me" },
+            delivery: "queue",
+          },
         ],
       },
     })
@@ -684,11 +692,14 @@ describe("V2 mini transport", () => {
         .findLast((item) => item.type === "queued.prompts")
         ?.prompts.map((item) => [item.messageID, item.delivery])
 
-    expect(pending()).toEqual([["msg_queued", "queue"]])
+    expect(pending()).toEqual([
+      ["msg_queued", "queue"],
+      ["msg_cancelled", "queue"],
+    ])
     events.push({
-      id: "evt_promoted",
-      created: 2,
-      type: "session.input.promoted",
+      id: "evt_steered",
+      created: 3,
+      type: "session.input.steered",
       durable: durable("ses_1", 2),
       data: { sessionID: "ses_1", inputID: "msg_queued" },
     })
@@ -697,19 +708,53 @@ describe("V2 mini transport", () => {
     expect(ui.commits).toContainEqual(
       expect.objectContaining({ kind: "user", messageID: "msg_queued", text: "follow up" }),
     )
-    expect(pending()).toEqual([])
+    expect(pending()).toEqual([["msg_cancelled", "queue"]])
+    events.push({
+      id: "evt_queued",
+      created: 4,
+      type: "session.input.queued",
+      durable: durable("ses_1", 3),
+      data: { sessionID: "ses_1", inputID: "msg_queued" },
+    })
+    while (pending()?.length !== 2) await Bun.sleep(0)
+    expect(pending()).toEqual([
+      ["msg_queued", "queue"],
+      ["msg_cancelled", "queue"],
+    ])
+    events.push({
+      id: "evt_cancelled",
+      created: 5,
+      type: "session.input.cancelled",
+      durable: durable("ses_1", 4),
+      data: { sessionID: "ses_1", inputID: "msg_cancelled" },
+    })
+    while (pending()?.length !== 1) await Bun.sleep(0)
+    expect(pending()).toEqual([["msg_queued", "queue"]])
+    events.push({
+      id: "evt_promoted",
+      created: 6,
+      type: "session.input.promoted",
+      durable: durable("ses_1", 5),
+      data: { sessionID: "ses_1", inputID: "msg_queued" },
+    })
+    while (pending()?.length !== 0) await Bun.sleep(0)
+    expect(ui.commits.filter((item) => item.messageID === "msg_queued")).toHaveLength(1)
     const prompt = spyOn(client.session, "prompt").mockImplementation(
       (request) => ok(promptAdmission(request)) as never,
     )
-    await transport.queuePromptTurn({
+    await transport.admitPromptTurn({
       agent: "review",
-      model: undefined,
-      variant: undefined,
+      model: { providerID: "test", modelID: "next" },
+      variant: "high",
       prompt: { messageID: "msg_next", text: "another", parts: [] },
       files: [],
       includeFiles: false,
-    })
+    }, "queue")
     expect(client.session.switchAgent).toHaveBeenCalledWith({ sessionID: "ses_1", agent: "review" }, expect.anything())
+    expect(client.session.switchModel).toHaveBeenCalledWith(
+      { sessionID: "ses_1", model: { providerID: "test", id: "next", variant: "high" } },
+      expect.anything(),
+    )
     expect(prompt).toHaveBeenCalledWith(expect.objectContaining({ delivery: "queue" }), expect.anything())
     events.push({
       id: "evt_earlier_admission",
@@ -722,15 +767,8 @@ describe("V2 mini transport", () => {
         input: { type: "user", data: { text: "earlier" }, delivery: "steer" },
       },
     })
-    while (true) {
-      const pending = ui.events.findLast((item) => item.type === "queued.prompts")
-      if (pending?.type === "queued.prompts" && pending.prompts.length >= 2) break
-      await Bun.sleep(0)
-    }
-    expect(pending()).toEqual([
-      ["msg_next", "queue"],
-      ["msg_earlier", "steer"],
-    ])
+    await Bun.sleep(10)
+    expect(pending()).toEqual([["msg_next", "queue"]])
     await transport.close()
   })
 
@@ -813,14 +851,14 @@ describe("V2 mini transport", () => {
       durable: durable("ses_1", 2),
       data: { sessionID: "ses_1", inputID: "msg_prompt" },
     })
-    await transport.queuePromptTurn({
+    await transport.admitPromptTurn({
       agent: undefined,
       model: undefined,
       variant: undefined,
       prompt: { messageID: "msg_queued", text: "follow up", parts: [] },
       files: [],
       includeFiles: false,
-    })
+    }, "queue")
     events.push({
       id: "evt_queued_promoted",
       created: 3,