feat: click file name to open file in toolcall, remove hover bg of toolcall, do not trigger sidebar any more (follow designer's instruction)

packages/host/apiproxy/README.i18n.yaml

@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write packages/host/apiproxy/README.md
-README.md: d6db9a9541b0727b61dbe501f7234564ffef139e
-README.zh.md: 4175c8fdb98aad2882718a2c95cd9e45825d787d
+README.md: 33a4752f97c17e7879dff11a33acc93e335496b7
+README.zh.md: 45aee0225717ad8a4d9b923067f196535c7ab3f9

packages/host/apiproxy/README.md

@@ -18,6 +18,8 @@ Workspace and Session lists are separate reconnect baselines. `workspace.create`
 
 `host.pickDirectory` opens one native directory picker and returns its selected path, or `null` when the user cancels. Its host implementation invokes platform tools without a shell: `osascript` on macOS, an STA PowerShell `FolderBrowserDialog` on Windows, and Zenity with a KDialog fallback on Linux. The picker function is injectable for tests. This user-paced method is the sole unary call exempt from the default 30-second timeout; caller and connection aborts still propagate to the native process. The browser carrier separately restricts this privileged method to loopback, same-origin requests.
 
+`host.openPath` opens a filesystem path with the operating system's default application (`open` on macOS, `Invoke-Item` on Windows, `xdg-open` on Linux). The opener is injectable for tests. The browser carrier applies the same loopback, same-origin restriction as `host.pickDirectory`.
+
 `session.history` pages on message boundaries, and its tail page (no `beforeSeq`) carries two session-level extras the page window cannot supply: the in-flight partial's chunk events, and `todos` — the latest `todo/write` whole-list projection over the full log. Older pages omit `todos` because the projection is session-level, not per-page; a tail response that omits it means the whole log holds no `todo/write`, so clients read the absent field as the empty plan rather than as unchanged state.
 
 The `command.*` and `skill.*` domains expose the host command registry and skill catalog to clients. Every method addresses one session's agent by `sessionId` (a served session always has an Agent; `command.*` resumes cold sessions through the same path as `session.*`, while `skill.list` resolves the project root from the session header without touching the Agent registry). `command.execute` runs a slash-command line host-side and returns a detached result; the carrier's request signal cancels the running handler. `host/commands-changed` is the catalog invalidation frame: clients refetch `command.list` instead of diffing.

packages/host/apiproxy/README.zh.md

@@ -18,6 +18,8 @@ Workspace 列表与 Session 列表是相互独立的重连基线。`workspace.cr
 
 `host.pickDirectory` 会打开一个原生目录选择器并返回选中的路径；用户取消时返回 `null`。宿主实现不经 shell 调用平台工具：macOS 使用 `osascript`，Windows 使用以 STA 模式运行的 PowerShell `FolderBrowserDialog`，Linux 使用 Zenity，并以 KDialog 作为回退。选择器函数可在测试中注入。该方法需等待用户完成操作，是唯一不受默认 30 秒超时限制的一元调用；调用方发出的中止信号和连接中止仍会传播至原生进程。浏览器载体另行将这一特权方法限制为仅接受来自回环地址的同源请求。
 
+`host.openPath` 会用操作系统的默认应用打开一个文件系统路径（macOS 为 `open`，Windows 为 `Invoke-Item`，Linux 为 `xdg-open`）。打开器可在测试中注入。浏览器载体对其施加与 `host.pickDirectory` 相同的回环、同源限制。
+
 `session.history` 按消息边界分页，其尾页（不带 `beforeSeq`）额外携带两项页窗口本身无法提供的会话级数据：进行中局部消息的 chunk 事件，以及 `todos`——整份日志上最后一次 `todo/write` 的整表投影。较早的页面不带 `todos`，因为该投影是会话级而非分页级的；尾页响应缺少该字段意味着整份日志中没有任何 `todo/write`，因此客户端要把缺失字段读作空计划，而不是读作「状态未变」。
 
 `command.*` 与 `skill.*` 领域向客户端暴露宿主命令注册表和技能目录。每个方法都通过 `sessionId` 寻址一个会话的 Agent（被服务的会话必有 Agent；`command.*` 经由与 `session.*` 相同的路径恢复冷会话，而 `skill.list` 从会话头解析项目根目录，不触碰 Agent 注册表）。`command.execute` 在宿主侧运行一条斜杠命令行并返回脱耦结果；载体的请求信号可取消正在运行的处理器。`host/commands-changed` 是目录失效帧：客户端重新拉取 `command.list` 而不是做差分。

packages/host/apiproxy/src/api-proxy.ts

@@ -40,6 +40,7 @@ import type {
 } from '@deepseek-ai/dsh-user-interaction'
 import { UserInteractionError } from '@deepseek-ai/dsh-user-interaction'
 import { pickNativeDirectory } from './native-directory-picker.ts'
+import { openNativePath } from './native-path-opener.ts'
 
 /** Page size when history is called without maxMessages. */
 const DEFAULT_MAX_MESSAGES = 50
@@ -203,6 +204,8 @@ export interface ApiProxyDefaults {
   workspaceRoot: string
   /** Native single-directory picker; injectable for carrier tests. */
   pickDirectory?: (signal: AbortSignal) => Promise<string | null>
+  /** Native open-with-default-application; injectable for carrier tests. */
+  openPath?: (path: string, signal: AbortSignal) => Promise<void>
 }
 
 /** The tool/call payload fields the presenter path reads. */
@@ -1012,6 +1015,28 @@ export function createApiProxy(ctx: Context, defaults: ApiProxyDefaults): ApiPro
           })
         }
       },
+
+      async openPath(request, signal) {
+        try {
+          const open = defaults.openPath
+            ?? ((path: string, openSignal: AbortSignal) => openNativePath(path, openSignal))
+          await open(request.payload.path, signal)
+          return ok(request, { opened: true as const })
+        } catch (error: unknown) {
+          if (signal.aborted) {
+            return err(request, {
+              code: 'cancelled',
+              message: 'path open was aborted',
+              details: {},
+            })
+          }
+          return err(request, {
+            code: 'internal',
+            message: `path open failed: ${error instanceof Error ? error.message : String(error)}`,
+            details: {},
+          })
+        }
+      },
     },
 
     commands: {

packages/host/apiproxy/src/api/host.schema.ts

@@ -25,3 +25,13 @@ export const hostPickDirectoryRequestSchema = z.object({}) satisfies z.ZodType<W
 export const hostPickDirectoryValueSchema = z.object({
   path: z.string().nullable(),
 }) satisfies z.ZodType<Wire<ResponseValue<'host.pickDirectory'>>>
+
+/** host.openPath request payload. */
+export const hostOpenPathRequestSchema = z.object({
+  path: z.string().min(1),
+}) satisfies z.ZodType<Wire<RequestPayload<'host.openPath'>>>
+
+/** host.openPath response value. */
+export const hostOpenPathValueSchema = z.object({
+  opened: z.literal(true),
+}) satisfies z.ZodType<Wire<ResponseValue<'host.openPath'>>>

packages/host/apiproxy/src/api/host.ts

@@ -28,4 +28,14 @@ export interface HostApi {
     request: RpcRequest<{}>,
     signal: AbortSignal,
   ): Promise<RpcResponse<{ path: string | null }>>
+
+  /**
+   * Open a filesystem path with the operating system's default application
+   * (Finder / Explorer / xdg-open hand-off). The browser carrier restricts this
+   * privileged method to loopback, same-origin requests.
+   */
+  openPath(
+    request: RpcRequest<{ path: string }>,
+    signal: AbortSignal,
+  ): Promise<RpcResponse<{ opened: true }>>
 }

packages/host/apiproxy/src/api/rpc-map.ts

@@ -26,6 +26,7 @@ export interface RpcMethodMap {
   'session.cancel': SessionsApi['cancel']
   'host.describe': HostApi['describe']
   'host.pickDirectory': HostApi['pickDirectory']
+  'host.openPath': HostApi['openPath']
   'workspace.list': WorkspaceApi['list']
   'workspace.create': WorkspaceApi['create']
   'workspace.rename': WorkspaceApi['rename']

packages/host/apiproxy/src/fetch/client.ts

@@ -13,7 +13,9 @@ import { RpcId } from '../api/rpc.ts'
 import type { Wire } from '../api/rpc.schema.ts'
 import { rpcReceiptSchema, serverRequestSchema, serverResponseSchema } from '../api/rpc.schema.ts'
 import { hostFrameSchema, muxFrameSchema } from '../api/events.schema.ts'
-import { hostDescribeValueSchema, hostPickDirectoryValueSchema } from '../api/host.schema.ts'
+import {
+  hostDescribeValueSchema, hostOpenPathValueSchema, hostPickDirectoryValueSchema,
+} from '../api/host.schema.ts'
 import {
   sessionCancelValueSchema,
   sessionCreateValueSchema,
@@ -61,6 +63,7 @@ export interface IApiClient {
   host: {
     describe(payload: RequestPayload<'host.describe'>, signal?: AbortSignal): Promise<RpcResponse<ResponseValue<'host.describe'>>>
     pickDirectory(payload: RequestPayload<'host.pickDirectory'>, signal?: AbortSignal): Promise<RpcResponse<ResponseValue<'host.pickDirectory'>>>
+    openPath(payload: RequestPayload<'host.openPath'>, signal?: AbortSignal): Promise<RpcResponse<ResponseValue<'host.openPath'>>>
   }
   workspace: {
     list(payload: RequestPayload<'workspace.list'>, signal?: AbortSignal): Promise<RpcResponse<ResponseValue<'workspace.list'>>>
@@ -98,6 +101,7 @@ const UNARY_VALUE_SCHEMAS: { [K in keyof RpcMethodMap]: z.ZodType<Wire<ResponseV
   'session.cancel': sessionCancelValueSchema,
   'host.describe': hostDescribeValueSchema,
   'host.pickDirectory': hostPickDirectoryValueSchema,
+  'host.openPath': hostOpenPathValueSchema,
   'workspace.list': workspaceListValueSchema,
   'workspace.create': workspaceCreateValueSchema,
   'workspace.rename': workspaceRenameValueSchema,
@@ -305,6 +309,7 @@ export abstract class AbstractApiClient implements IApiClient {
     // A native system dialog is user-paced and may legitimately stay open
     // longer than the normal unary deadline. Caller/connection aborts remain.
     pickDirectory: (payload, signal) => this.callUnary('host.pickDirectory', payload, signal, false),
+    openPath: (payload, signal) => this.callUnary('host.openPath', payload, signal),
   }
 
   readonly workspace: IApiClient['workspace'] = {

packages/host/apiproxy/src/fetch/handler.ts

@@ -23,7 +23,9 @@ import {
   sessionPromptRequestSchema,
   sessionSelectModelRequestSchema,
 } from '../api/sessions.schema.ts'
-import { hostDescribeRequestSchema, hostPickDirectoryRequestSchema } from '../api/host.schema.ts'
+import {
+  hostDescribeRequestSchema, hostOpenPathRequestSchema, hostPickDirectoryRequestSchema,
+} from '../api/host.schema.ts'
 import {
   workspaceCreateRequestSchema,
   workspaceDeleteRequestSchema,
@@ -60,6 +62,7 @@ const UNARY_ROUTES: UnaryRoutes = {
   'session.cancel': { schema: sessionCancelRequestSchema, invoke: (api, r) => api.sessions.cancel(r) },
   'host.describe': { schema: hostDescribeRequestSchema, invoke: (api, r) => api.host.describe(r) },
   'host.pickDirectory': { schema: hostPickDirectoryRequestSchema, invoke: (api, r, signal) => api.host.pickDirectory(r, signal) },
+  'host.openPath': { schema: hostOpenPathRequestSchema, invoke: (api, r, signal) => api.host.openPath(r, signal) },
   'workspace.list': { schema: workspaceListRequestSchema, invoke: (api, r) => api.workspace.list(r) },
   'workspace.create': { schema: workspaceCreateRequestSchema, invoke: (api, r) => api.workspace.create(r) },
   'workspace.rename': { schema: workspaceRenameRequestSchema, invoke: (api, r) => api.workspace.rename(r) },

packages/host/apiproxy/src/native-path-opener.ts

@@ -0,0 +1,78 @@
+/** Cross-platform open-with-default-application used by the local GUI carrier. */
+
+import { execFile } from 'node:child_process'
+
+/** Testable command boundary; native implementations never invoke a shell. */
+export type PathOpenerRunner = (
+  command: string,
+  args: readonly string[],
+  signal: AbortSignal,
+) => Promise<{ stdout: string; stderr: string }>
+
+/** Injectable platform facts for deterministic adapter tests. */
+export interface PathOpenerInternals {
+  platform?: NodeJS.Platform
+  run?: PathOpenerRunner
+}
+
+const runCommand: PathOpenerRunner = (command, args, signal) =>
+  new Promise((resolve, reject) => {
+    execFile(
+      command,
+      [...args],
+      { encoding: 'utf8', signal, windowsHide: true },
+      (error, stdout, stderr) => {
+        if (error !== null) {
+          const failure = Object.assign(new Error(error.message, { cause: error }), {
+            code: error.code,
+            stdout,
+            stderr,
+          })
+          reject(failure)
+          return
+        }
+        resolve({ stdout, stderr })
+      },
+    )
+  })
+
+/** PowerShell single-quoted literal (doubles embedded quotes). */
+function powershellLiteral(path: string): string {
+  return `'${path.replace(/'/g, "''")}'`
+}
+
+/**
+ * Open a filesystem path with the operating system's default application.
+ * @param path - absolute or host-resolvable path (caller owns resolution).
+ * @param signal - caller/connection lifetime; abort terminates the native command.
+ * @param internals - platform and runner seam for deterministic tests.
+ */
+export async function openNativePath(
+  path: string,
+  signal: AbortSignal,
+  internals: PathOpenerInternals = {},
+): Promise<void> {
+  const platform = internals.platform ?? process.platform
+  const run = internals.run ?? runCommand
+
+  if (platform === 'darwin') {
+    await run('open', [path], signal)
+    return
+  }
+
+  if (platform === 'win32') {
+    await run('powershell.exe', [
+      '-NoProfile',
+      '-Command',
+      `Invoke-Item -LiteralPath ${powershellLiteral(path)}`,
+    ], signal)
+    return
+  }
+
+  if (platform === 'linux') {
+    await run('xdg-open', [path], signal)
+    return
+  }
+
+  throw new Error(`native path opener is unsupported on ${platform}`)
+}

packages/host/apiproxy/tests/api-proxy-workspace.spec.ts

@@ -57,7 +57,10 @@ function stubAgent(session: Session): Agent {
 /** Compose the API over real Session, Agent, Storage, Domain, and Workspace services. */
 async function harness(
   workspaceRoot = realpathSync(mkdtempSync(join(tmpdir(), 'dsh-apiproxy-workspace-'))),
-  pickDirectory?: (signal: AbortSignal) => Promise<string | null>,
+  extras: {
+    pickDirectory?: (signal: AbortSignal) => Promise<string | null>
+    openPath?: (path: string, signal: AbortSignal) => Promise<void>
+  } = {},
 ) {
   const ctx = new Context()
   await ctx.plugin(SessionStore)
@@ -97,26 +100,29 @@ async function harness(
     model: 'test-model',
     cwd: workspaceRoot,
     workspaceRoot,
-    ...pickDirectory === undefined ? {} : { pickDirectory },
+    ...extras.pickDirectory === undefined ? {} : { pickDirectory: extras.pickDirectory },
+    ...extras.openPath === undefined ? {} : { openPath: extras.openPath },
   })
   return { api, ctx, storageDomain, workspaceRoot }
 }
 
 describe('host.pickDirectory', () => {
   it('returns a selected path or explicit cancellation from the injected native boundary', async () => {
-    const selected = await harness(undefined, async () => '/tmp/project')
+    const selected = await harness(undefined, { pickDirectory: async () => '/tmp/project' })
     expect((await selected.api.host.pickDirectory(request({}), new AbortController().signal)).result)
       .toEqual({ ok: true, value: { path: '/tmp/project' } })
 
-    const cancelled = await harness(undefined, async () => null)
+    const cancelled = await harness(undefined, { pickDirectory: async () => null })
     expect((await cancelled.api.host.pickDirectory(request({}), new AbortController().signal)).result)
       .toEqual({ ok: true, value: { path: null } })
   })
 
   it('propagates abort into the native boundary as a cancelled RPC error', async () => {
-    const { api } = await harness(undefined, signal => new Promise((_resolve, reject) => {
-      signal.addEventListener('abort', () => { reject(new Error('aborted')) }, { once: true })
-    }))
+    const { api } = await harness(undefined, {
+      pickDirectory: signal => new Promise((_resolve, reject) => {
+        signal.addEventListener('abort', () => { reject(new Error('aborted')) }, { once: true })
+      }),
+    })
     const abort = new AbortController()
     const pending = api.host.pickDirectory(request({}), abort.signal)
     abort.abort()
@@ -124,6 +130,30 @@ describe('host.pickDirectory', () => {
   })
 })
 
+describe('host.openPath', () => {
+  it('opens through the injected native boundary', async () => {
+    const opened: string[] = []
+    const { api } = await harness(undefined, {
+      openPath: async (path) => { opened.push(path) },
+    })
+    expect((await api.host.openPath(request({ path: '/tmp/a.txt' }), new AbortController().signal)).result)
+      .toEqual({ ok: true, value: { opened: true } })
+    expect(opened).toEqual(['/tmp/a.txt'])
+  })
+
+  it('propagates abort into the native boundary as a cancelled RPC error', async () => {
+    const { api } = await harness(undefined, {
+      openPath: (_path, signal) => new Promise((_resolve, reject) => {
+        signal.addEventListener('abort', () => { reject(new Error('aborted')) }, { once: true })
+      }),
+    })
+    const abort = new AbortController()
+    const pending = api.host.openPath(request({ path: '/tmp/a.txt' }), abort.signal)
+    abort.abort()
+    expect((await pending).result).toMatchObject({ ok: false, error: { code: 'cancelled' } })
+  })
+})
+
 describe('workspace.create', () => {
   it('serializes concurrent names and rejects the duplicate', async () => {
     const { api, workspaceRoot } = await harness()

packages/host/apiproxy/tests/client-handler.spec.ts

@@ -50,6 +50,7 @@ function scriptedApi(overrides: {
     host: {
       describe: r => ok(r, { version: '0-test', cwd: '/t', attachedSessions: 0 }),
       pickDirectory: r => ok(r, { path: null }),
+      openPath: r => ok(r, { opened: true as const }),
       ...overrides.host,
     },
     workspace: {

packages/host/apiproxy/tests/fetch-carrier.spec.ts

@@ -80,6 +80,9 @@ function fakeApi(overrides: Partial<{ muxFrames: MuxFrame[]; hostFrames: HostFra
       async pickDirectory(request) {
         return { rpcId: request.rpcId, result: { ok: true, value: { path: null } } }
       },
+      async openPath(request) {
+        return { rpcId: request.rpcId, result: { ok: true, value: { opened: true as const } } }
+      },
     },
     workspace: {
       async list(request) {

packages/host/apiproxy/tests/native-path-opener.spec.ts

@@ -0,0 +1,62 @@
+type ExecFileCallback = (
+  error: (Error & { code?: string | number }) | null,
+  stdout: string,
+  stderr: string,
+) => void
+type ExecFileMock = (
+  command: string,
+  args: readonly string[],
+  options: { encoding: string; signal: AbortSignal; windowsHide: boolean },
+  callback: ExecFileCallback,
+) => void
+
+const { execFileMock } = vi.hoisted(() => ({ execFileMock: vi.fn<ExecFileMock>() }))
+
+vi.mock('node:child_process', () => ({ execFile: execFileMock }))
+
+import { describe, expect, it, vi } from 'vitest'
+import { openNativePath, type PathOpenerRunner } from '../src/native-path-opener.ts'
+
+const signal = () => new AbortController().signal
+
+describe('native path opener', () => {
+  it('opens with macOS open(1)', async () => {
+    const run = vi.fn<PathOpenerRunner>(async () => ({ stdout: '', stderr: '' }))
+    await openNativePath('/Users/test/file.txt', signal(), { platform: 'darwin', run })
+    expect(run).toHaveBeenCalledWith('open', ['/Users/test/file.txt'], expect.any(AbortSignal))
+  })
+
+  it('opens with Windows Invoke-Item and escapes single quotes', async () => {
+    const run = vi.fn<PathOpenerRunner>(async () => ({ stdout: '', stderr: '' }))
+    await openNativePath("C:\\work\\o'reilly.txt", signal(), { platform: 'win32', run })
+    expect(run).toHaveBeenCalledWith(
+      'powershell.exe',
+      ['-NoProfile', '-Command', "Invoke-Item -LiteralPath 'C:\\work\\o''reilly.txt'"],
+      expect.any(AbortSignal),
+    )
+  })
+
+  it('opens with Linux xdg-open', async () => {
+    const run = vi.fn<PathOpenerRunner>(async () => ({ stdout: '', stderr: '' }))
+    await openNativePath('/tmp/a.txt', signal(), { platform: 'linux', run })
+    expect(run).toHaveBeenCalledWith('xdg-open', ['/tmp/a.txt'], expect.any(AbortSignal))
+  })
+
+  it('rejects unsupported platforms', async () => {
+    await expect(openNativePath('/x', signal(), { platform: 'freebsd' as NodeJS.Platform }))
+      .rejects.toThrow('unsupported on freebsd')
+  })
+
+  it('runs the default command adapter without a shell', async () => {
+    execFileMock.mockImplementationOnce((_command, _args, _options, callback) => {
+      callback(null, '', '')
+    })
+    await openNativePath('/tmp/default.txt', signal(), { platform: 'darwin' })
+    const [command, args, options] = execFileMock.mock.calls[0]!
+    expect(command).toBe('open')
+    expect(args).toEqual(['/tmp/default.txt'])
+    expect(options.encoding).toBe('utf8')
+    expect(options.windowsHide).toBe(true)
+    expect(options.signal).toBeInstanceOf(AbortSignal)
+  })
+})