remove unused error data serializer

Co-authored-by: Aiden Cline <rekram1-node@users.noreply.github.com>

packages/core/src/aisdk.ts

@@ -299,8 +299,6 @@ export const locationLayer = Layer.effect(
   }),
 )
 
-export const defaultLayer = locationLayer
-
 function modelFromLanguage(info: Info, language: LanguageModelV3) {
   const packageName = Provider.packageName(info.package!)
   const projected = mapBodyToProviderOptions(info, packageName)

packages/core/src/github-copilot/responses/tool/image-generation.ts

@@ -1,4 +1,3 @@
-import { createProviderToolFactoryWithOutputSchema } from "@ai-sdk/provider-utils"
 import { z } from "zod/v4"
 
 export const imageGenerationArgsSchema = z
@@ -24,91 +23,3 @@ export const imageGenerationArgsSchema = z
 export const imageGenerationOutputSchema = z.object({
   result: z.string(),
 })
-
-type ImageGenerationArgs = {
-  /**
-   * Background type for the generated image. Default is 'auto'.
-   */
-  background?: "auto" | "opaque" | "transparent"
-
-  /**
-   * Input fidelity for the generated image. Default is 'low'.
-   */
-  inputFidelity?: "low" | "high"
-
-  /**
-   * Optional mask for inpainting.
-   * Contains image_url (string, optional) and file_id (string, optional).
-   */
-  inputImageMask?: {
-    /**
-     * File ID for the mask image.
-     */
-    fileId?: string
-
-    /**
-     * Base64-encoded mask image.
-     */
-    imageUrl?: string
-  }
-
-  /**
-   * The image generation model to use. Default: gpt-image-1.
-   */
-  model?: string
-
-  /**
-   * Moderation level for the generated image. Default: auto.
-   */
-  moderation?: "auto"
-
-  /**
-   * Compression level for the output image. Default: 100.
-   */
-  outputCompression?: number
-
-  /**
-   * The output format of the generated image. One of png, webp, or jpeg.
-   * Default: png
-   */
-  outputFormat?: "png" | "jpeg" | "webp"
-
-  /**
-   * Number of partial images to generate in streaming mode, from 0 (default value) to 3.
-   */
-  partialImages?: number
-
-  /**
-   * The quality of the generated image.
-   * One of low, medium, high, or auto. Default: auto.
-   */
-  quality?: "auto" | "low" | "medium" | "high"
-
-  /**
-   * The size of the generated image.
-   * One of 1024x1024, 1024x1536, 1536x1024, or auto.
-   * Default: auto.
-   */
-  size?: "auto" | "1024x1024" | "1024x1536" | "1536x1024"
-}
-
-const imageGenerationToolFactory = createProviderToolFactoryWithOutputSchema<
-  {},
-  {
-    /**
-     * The generated image encoded in base64.
-     */
-    result: string
-  },
-  ImageGenerationArgs
->({
-  id: "openai.image_generation",
-  inputSchema: z.object({}),
-  outputSchema: imageGenerationOutputSchema,
-})
-
-export const imageGeneration = (
-  args: ImageGenerationArgs = {}, // default
-) => {
-  return imageGenerationToolFactory(args)
-}

packages/core/src/github-copilot/responses/tool/local-shell.ts

@@ -1,4 +1,3 @@
-import { createProviderToolFactoryWithOutputSchema } from "@ai-sdk/provider-utils"
 import { z } from "zod/v4"
 
 export const localShellInputSchema = z.object({
@@ -15,50 +14,3 @@ export const localShellInputSchema = z.object({
 export const localShellOutputSchema = z.object({
   output: z.string(),
 })
-
-export const localShell = createProviderToolFactoryWithOutputSchema<
-  {
-    /**
-     * Execute a shell command on the server.
-     */
-    action: {
-      type: "exec"
-
-      /**
-       * The command to run.
-       */
-      command: string[]
-
-      /**
-       * Optional timeout in milliseconds for the command.
-       */
-      timeoutMs?: number
-
-      /**
-       * Optional user to run the command as.
-       */
-      user?: string
-
-      /**
-       * Optional working directory to run the command in.
-       */
-      workingDirectory?: string
-
-      /**
-       * Environment variables to set for the command.
-       */
-      env?: Record<string, string>
-    }
-  },
-  {
-    /**
-     * The output of local shell tool call.
-     */
-    output: string
-  },
-  {}
->({
-  id: "openai.local_shell",
-  inputSchema: localShellInputSchema,
-  outputSchema: localShellOutputSchema,
-})

packages/core/src/github-copilot/responses/tool/web-search-preview.ts

@@ -1,4 +1,3 @@
-import { createProviderToolFactory } from "@ai-sdk/provider-utils"
 import { z } from "zod/v4"
 
 // Args validation schema
@@ -39,65 +38,3 @@ export const webSearchPreviewArgsSchema = z.object({
     })
     .optional(),
 })
-
-export const webSearchPreview = createProviderToolFactory<
-  {
-    // Web search doesn't take input parameters - it's controlled by the prompt
-  },
-  {
-    /**
-     * Search context size to use for the web search.
-     * - high: Most comprehensive context, highest cost, slower response
-     * - medium: Balanced context, cost, and latency (default)
-     * - low: Least context, lowest cost, fastest response
-     */
-    searchContextSize?: "low" | "medium" | "high"
-
-    /**
-     * User location information to provide geographically relevant search results.
-     */
-    userLocation?: {
-      /**
-       * Type of location (always 'approximate')
-       */
-      type: "approximate"
-      /**
-       * Two-letter ISO country code (e.g., 'US', 'GB')
-       */
-      country?: string
-      /**
-       * City name (free text, e.g., 'Minneapolis')
-       */
-      city?: string
-      /**
-       * Region name (free text, e.g., 'Minnesota')
-       */
-      region?: string
-      /**
-       * IANA timezone (e.g., 'America/Chicago')
-       */
-      timezone?: string
-    }
-  }
->({
-  id: "openai.web_search_preview",
-  inputSchema: z.object({
-    action: z
-      .discriminatedUnion("type", [
-        z.object({
-          type: z.literal("search"),
-          query: z.string().nullish(),
-        }),
-        z.object({
-          type: z.literal("open_page"),
-          url: z.string(),
-        }),
-        z.object({
-          type: z.literal("find"),
-          url: z.string(),
-          pattern: z.string(),
-        }),
-      ])
-      .nullish(),
-  }),
-})

packages/core/src/github-copilot/responses/tool/web-search.ts

@@ -1,4 +1,3 @@
-import { createProviderToolFactory } from "@ai-sdk/provider-utils"
 import { z } from "zod/v4"
 
 export const webSearchArgsSchema = z.object({
@@ -20,83 +19,3 @@ export const webSearchArgsSchema = z.object({
     })
     .optional(),
 })
-
-export const webSearchToolFactory = createProviderToolFactory<
-  {
-    // Web search doesn't take input parameters - it's controlled by the prompt
-  },
-  {
-    /**
-     * Filters for the search.
-     */
-    filters?: {
-      /**
-       * Allowed domains for the search.
-       * If not provided, all domains are allowed.
-       * Subdomains of the provided domains are allowed as well.
-       */
-      allowedDomains?: string[]
-    }
-
-    /**
-     * Search context size to use for the web search.
-     * - high: Most comprehensive context, highest cost, slower response
-     * - medium: Balanced context, cost, and latency (default)
-     * - low: Least context, lowest cost, fastest response
-     */
-    searchContextSize?: "low" | "medium" | "high"
-
-    /**
-     * User location information to provide geographically relevant search results.
-     */
-    userLocation?: {
-      /**
-       * Type of location (always 'approximate')
-       */
-      type: "approximate"
-      /**
-       * Two-letter ISO country code (e.g., 'US', 'GB')
-       */
-      country?: string
-      /**
-       * City name (free text, e.g., 'Minneapolis')
-       */
-      city?: string
-      /**
-       * Region name (free text, e.g., 'Minnesota')
-       */
-      region?: string
-      /**
-       * IANA timezone (e.g., 'America/Chicago')
-       */
-      timezone?: string
-    }
-  }
->({
-  id: "openai.web_search",
-  inputSchema: z.object({
-    action: z
-      .discriminatedUnion("type", [
-        z.object({
-          type: z.literal("search"),
-          query: z.string().nullish(),
-        }),
-        z.object({
-          type: z.literal("open_page"),
-          url: z.string(),
-        }),
-        z.object({
-          type: z.literal("find"),
-          url: z.string(),
-          pattern: z.string(),
-        }),
-      ])
-      .nullish(),
-  }),
-})
-
-export const webSearch = (
-  args: Parameters<typeof webSearchToolFactory>[0] = {}, // default
-) => {
-  return webSearchToolFactory(args)
-}

packages/core/src/plugin/host.ts

@@ -341,6 +341,7 @@ export const make = Effect.fn("PluginHost.make")(function* (plugin: import("../p
       create: (input) =>
         runtime.session.create({
           id: input?.id,
+          title: input?.title,
           agent: input?.agent,
           model: input?.model,
           location:
@@ -350,8 +351,10 @@ export const make = Effect.fn("PluginHost.make")(function* (plugin: import("../p
       prompt: runtime.session.prompt,
       generate: (input) => runtime.session.generate(input).pipe(Effect.map((text) => ({ text }))),
       command: runtime.session.command,
+      rename: runtime.session.rename,
       synthetic: runtime.session.synthetic,
       interrupt: (input) => runtime.session.interrupt(input.sessionID),
+      wait: (input) => runtime.session.wait(input.sessionID),
     },
   } satisfies Plugin.Context
 })

packages/core/src/plugin/runtime.ts

@@ -11,7 +11,17 @@ import { Session } from "../session"
 export interface Interface {
   readonly session: Pick<
     Session.Interface,
-    "get" | "create" | "messages" | "prompt" | "generate" | "command" | "resume" | "interrupt" | "synthetic"
+    | "get"
+    | "create"
+    | "messages"
+    | "prompt"
+    | "generate"
+    | "command"
+    | "rename"
+    | "resume"
+    | "interrupt"
+    | "synthetic"
+    | "wait"
   >
   readonly job: Pick<Job.Interface, "start" | "wait" | "block" | "background" | "cancel">
   readonly location: {
@@ -52,9 +62,11 @@ export const layerWithCell = (cell: Cell) =>
         prompt: (input) => require(cell, (runtime) => runtime.session.prompt(input)),
         generate: (input) => require(cell, (runtime) => runtime.session.generate(input)),
         command: (input) => require(cell, (runtime) => runtime.session.command(input)),
+        rename: (input) => require(cell, (runtime) => runtime.session.rename(input)),
         resume: (sessionID) => require(cell, (runtime) => runtime.session.resume(sessionID)),
         interrupt: (sessionID) => require(cell, (runtime) => runtime.session.interrupt(sessionID)),
         synthetic: (input) => require(cell, (runtime) => runtime.session.synthetic(input)),
+        wait: (sessionID) => require(cell, (runtime) => runtime.session.wait(sessionID)),
       },
       job: {
         start: (input) => require(cell, (runtime) => runtime.job.start(input)),

packages/core/src/util/module.ts

@@ -1,10 +0,0 @@
-import { createRequire } from "node:module"
-import path from "node:path"
-
-export namespace Module {
-  export function resolve(id: string, dir: string) {
-    try {
-      return createRequire(path.join(dir, "package.json")).resolve(id)
-    } catch {}
-  }
-}

packages/core/src/util/path.ts

@@ -12,12 +12,6 @@ export function getDirectory(path: string | undefined) {
   return parts.slice(0, parts.length - 1).join("/") + "/"
 }
 
-export function getFileExtension(path: string | undefined) {
-  if (!path) return ""
-  const parts = path.split(".")
-  return parts[parts.length - 1]
-}
-
 export function getFilenameTruncated(path: string | undefined, maxLength: number = 20) {
   const filename = getFilename(path)
   if (filename.length <= maxLength) return filename

packages/core/test/plugin/host.ts

@@ -106,8 +106,10 @@ export function host(overrides: Overrides = {}): Plugin.Context {
       prompt: overrides.session?.prompt ?? (() => Effect.die("unused session.prompt")),
       generate: overrides.session?.generate ?? (() => Effect.die("unused session.generate")),
       command: overrides.session?.command ?? (() => Effect.die("unused session.command")),
+      rename: overrides.session?.rename ?? (() => Effect.die("unused session.rename")),
       synthetic: overrides.session?.synthetic ?? (() => Effect.die("unused session.synthetic")),
       interrupt: overrides.session?.interrupt ?? (() => Effect.die("unused session.interrupt")),
+      wait: overrides.session?.wait ?? (() => Effect.die("unused session.wait")),
     },
   }
 }

packages/plugin/src/effect/session.ts

@@ -29,7 +29,7 @@ export interface SessionHooks {
 
 export type SessionDomain = Pick<
   SessionApi<unknown>,
-  "create" | "get" | "prompt" | "generate" | "command" | "synthetic" | "interrupt"
+  "create" | "get" | "prompt" | "generate" | "command" | "synthetic" | "interrupt" | "rename" | "wait"
 > & {
   readonly hook: Hooks<SessionHooks>
 }

packages/tui/src/component/session-tabs.tsx

@@ -6,7 +6,6 @@ import { useSessionTabs } from "../context/session-tabs"
 import { useTheme, useThemes } from "../context/theme"
 import {
   adaptiveSessionTabLayout,
-  moveSessionTab,
   NEW_SESSION_TAB_TITLE,
   sessionTabComplete,
   seedSessionTabMotion,
@@ -49,10 +48,6 @@ export function SessionTabs(props: { controller?: SessionTabsController; animati
   const animations = () => props.animations ?? config.animations ?? true
   const [hovered, setHovered] = createSignal<string>()
   const [dragging, setDragging] = createSignal<string>()
-  // A drag reorders a local preview and persists one move on release instead of writing
-  // per slot crossing; the preview holds after release until the store reflects the move,
-  // so the strip never flashes the pre-drag order while the write is in flight.
-  const [preview, setPreview] = createSignal<{ sessionID: string; index: number }>()
   let strip: { screenX: number } | undefined
   const hueStep = () => (mode() === "light" ? 800 : 200)
   const accent = () => theme.hue.accent[hueStep()]
@@ -60,18 +55,7 @@ export function SessionTabs(props: { controller?: SessionTabsController; animati
   const idleNumber = () => tint(theme.text.subdued, theme.background.default, 0.35)
   const newTab = () => tabs.newTab?.() ?? false
   const activeID = createMemo(() => (newTab() ? NEW_SESSION_TAB.sessionID : tabs.current()))
-  const ordered = createMemo(() => {
-    const pending = preview()
-    if (!pending) return tabs.tabs()
-    return moveSessionTab(tabs.tabs(), pending.sessionID, pending.index)
-  })
-  const items = createMemo(() => (newTab() ? [...ordered(), NEW_SESSION_TAB] : ordered()))
-  createEffect(() => {
-    const pending = preview()
-    if (!pending || dragging()) return
-    const index = tabs.tabs().findIndex((tab) => tab.sessionID === pending.sessionID)
-    if (index === -1 || index === Math.min(pending.index, tabs.tabs().length - 1)) setPreview(undefined)
-  })
+  const items = createMemo(() => (newTab() ? [...tabs.tabs(), NEW_SESSION_TAB] : tabs.tabs()))
   const layout = createMemo((previous: ReturnType<typeof adaptiveSessionTabLayout> | undefined) =>
     adaptiveSessionTabLayout(items(), activeID(), dimensions().width, previous?.start),
   )
@@ -295,8 +279,6 @@ export function SessionTabs(props: { controller?: SessionTabsController; animati
           // keeping sloppy clicks indistinguishable from clean ones.
           const release = () => {
             setDragging(undefined)
-            const pending = preview()
-            if (pending?.sessionID === tab.sessionID) tabs.move(pending.sessionID, pending.index)
             if (tab === NEW_SESSION_TAB) return
             tabs.select(tab.sessionID)
           }
@@ -313,8 +295,7 @@ export function SessionTabs(props: { controller?: SessionTabsController; animati
               onMouseDrag={(event) => {
                 if (tab === NEW_SESSION_TAB) return
                 const slot = slotAt(event.x)
-                if (slot !== undefined && slot !== tabNumber() - 1)
-                  setPreview({ sessionID: tab.sessionID, index: slot })
+                if (slot !== undefined && slot !== tabNumber() - 1) tabs.move(tab.sessionID, slot)
               }}
               onMouseDragEnd={release}
             >

packages/tui/src/util/error.ts

@@ -143,40 +143,3 @@ export function errorMessage(error: unknown): string {
   if (formatted) return formatted
   return "unknown error"
 }
-
-export function errorData(error: unknown) {
-  if (error instanceof Error) {
-    return {
-      type: error.name,
-      message: errorMessage(error),
-      stack: error.stack,
-      cause: error.cause === undefined ? undefined : errorFormat(error.cause),
-      formatted: errorFormat(error),
-    }
-  }
-
-  if (!isRecord(error)) {
-    return {
-      type: typeof error,
-      message: errorMessage(error),
-      formatted: errorFormat(error),
-    }
-  }
-
-  const data = Object.getOwnPropertyNames(error).reduce<Record<string, unknown>>((acc, key) => {
-    const value = error[key]
-    if (value === undefined) return acc
-    if (typeof value === "string" || typeof value === "number" || typeof value === "boolean") {
-      acc[key] = value
-      return acc
-    }
-    // oxlint-disable-next-line no-base-to-string -- intentional coercion of arbitrary error properties
-    acc[key] = value instanceof Error ? value.message : String(value)
-    return acc
-  }, {})
-
-  if (typeof data.message !== "string") data.message = errorMessage(error)
-  if (typeof data.type !== "string") data.type = error.constructor?.name
-  data.formatted = errorFormat(error)
-  return data
-}

packages/tui/test/util/error.test.ts

@@ -1,25 +1,16 @@
 import { describe, expect, test } from "bun:test"
-import { errorData, errorFormat, errorMessage } from "../../src/util/error"
+import { errorFormat, errorMessage } from "../../src/util/error"
 
 describe("util.error", () => {
   test("formats native Error instances", () => {
     const err = new Error("boom")
     expect(errorMessage(err)).toBe("boom")
     expect(errorFormat(err)).toContain("boom")
-
-    const data = errorData(err)
-    expect(data.type).toBe("Error")
-    expect(data.message).toBe("boom")
-    expect(String(data.formatted)).toContain("boom")
   })
 
   test("extracts message from record-like values", () => {
     const err = { message: "bad input", code: "E_BAD" }
     expect(errorMessage(err)).toBe("bad input")
-
-    const data = errorData(err)
-    expect(data.message).toBe("bad input")
-    expect(data.code).toBe("E_BAD")
   })
 
   test("never returns bare {} for opaque object errors", () => {
@@ -41,9 +32,5 @@ describe("util.error", () => {
     }
 
     expect(errorMessage(err)).toBe("ResolveMessage: Cannot resolve module")
-
-    const data = errorData(err)
-    expect(data.message).toBe("ResolveMessage: Cannot resolve module")
-    expect(String(data.formatted)).toContain("ResolveMessage")
   })
 })

packages/www/content/docs/build/plugins.mdx

@@ -177,7 +177,7 @@ and plugin options.
 | `ctx.integration`      | `list`, `get`, `connect`, `attempt`, `transform`, `reload`, and connection lookup/resolution |
 | `ctx.plugin`           | `list` currently active plugin IDs                                                           |
 | `ctx.reference`        | `list`, `transform`, `reload`                                                                |
-| `ctx.session`          | `create`, `get`, `prompt`, `command`, `synthetic`, `interrupt`, and `hook`                   |
+| `ctx.session`          | `create`, `get`, `prompt`, `command`, `rename`, `synthetic`, `interrupt`, `wait`, and `hook`  |
 | `ctx.skill`            | `list`, `transform`, `reload`                                                                |
 | `ctx.tool`             | `transform` and `hook`                                                                       |
 | `ctx.aisdk`            | `hook`                                                                                       |