* ### client/src/App.tsx
- Imports:
- Added: `Task` and `GetTaskResultSchema` to the same import block.
- UI Icons: Added `ListTodo` from `lucide-react` to the icon imports.
- Components: Added `TasksTab` import beside `ToolsTab`.
- Config utils: Added `getMCPTaskTtl` to the config utils import block.
- State additions:
- `const [tasks, setTasks] = useState<Task[]>([]);`
- Extended `errors` state to include a `tasks` key: `tasks: null,`
- `const [selectedTask, setSelectedTask] = useState<Task | null>(null);`
- `const [isPollingTask, setIsPollingTask] = useState(false);`
- `const [nextTaskCursor, setNextTaskCursor] = useState<string | undefined>();`
- Hook: `useConnection({...})` return value usage extended
- Added destructured functions: `cancelTask: cancelMcpTask` and `listTasks: listMcpTasks` from the custom hook.
- Notification handling:
- In `onNotification`, added:
- If `method === "notifications/tasks/list_changed"`, call `listTasks()` (voided).
- If `method === "notifications/tasks/status"`, treat `notification.params` as a `Task` and update `tasks` state: replace if exists by `taskId`, otherwise prepend. Also update `selectedTask` if it’s the same `taskId`.
- Tab routing:
- When computing valid tabs, added `tasks` when server declares capability: `...(serverCapabilities?.tasks ? ["tasks"] : []),`
- When choosing a default tab, added a branch to fall back to `"tasks"` if neither resources/prompts/tools are present but tasks are.
- Effect for Tasks tab:
- When `mcpClient` is connected and `activeTab === "tasks"`, invoke `listTasks()`.
- Tools → task-augmented calls integration in `callTool`:
- Parameter signature supports `runAsTask?: boolean` (already present in this file), but now:
- If `runAsTask` is true, augment the `tools/call` request’s `params` with a `task` object: `{ task: { ttl: getMCPTaskTtl(config) } }`.
- Use a permissive result schema for tool call: `sendMCPRequest(request, z.any(), "tools")` to avoid version-mismatch schema issues.
- Task reference detection introduced:
- `isTaskResult` helper checks for a nested `task` object with `taskId` (i.e., `response.task.taskId`).
- When task is detected:
- Set `isPollingTask(true)`.
- Immediately set a temporary `toolResult` that includes text content “Task created: … Polling for status…” and `_meta` with `"io.modelcontextprotocol/related-task": { taskId }`.
- Start a polling loop:
- Delay 1s between polls.
- Call `tasks/get` with `GetTaskResultSchema` for status.
- If status is `completed`: call `tasks/result` with `z.any()` to retrieve the final result and set it as `toolResult`; call `listTasks()`.
- If status is `failed` or `cancelled`: set an error `toolResult` content that includes the status + `statusMessage`; call `listTasks()`.
- Else (still running): update `toolResult` content with current `status`/`statusMessage` and preserve `_meta` related-task.
- After loop, set `isPollingTask(false)`.
- When not a task response, set `toolResult` directly from response (cast to `CompatibilityCallToolResult`).
- Tasks list + cancel helpers in App:
- `listTasks`: uses `listMcpTasks(nextTaskCursor)` from the hook, updates `tasks`, `nextTaskCursor`, and clears `errors.tasks`.
- `cancelTask`: calls `cancelMcpTask(taskId)`, updates `tasks` array by `taskId`, updates `selectedTask` if it matches, and clears `errors.tasks`.
- UI integration:
- Added a `TabsTrigger` for “Tasks” with `<ListTodo />` icon, disabled unless server supports tasks.
- Added `<TasksTab />` to the main `TabsContent` block, passing: `tasks`, `listTasks`, `clearTasks`, `cancelTask`, `selectedTask`, `setSelectedTask`, `error={errors.tasks}`, `nextCursor={nextTaskCursor}`.
- Passed `isPollingTask={isPollingTask}` and `toolResult` into `ToolsTab` so the Tools tab can show the live “Polling Task…” state and block reruns while polling.
Note: The raw diff is long; the key hunks align with the above bullet points (imports, state, notifications, tab wiring, request augmentation, polling loop, UI additions).
---
### client/src/components/ToolsTab.tsx
- Props shape changed:
- Added `isPollingTask?: boolean` prop in the destructured props and in the prop types.
- The `callTool` callback signature is now `(name, params, metadata?, runAsTask?) => Promise<void>` (runAsTask added earlier; test updates elsewhere reflect this).
- Local state additions:
- `const [runAsTask, setRunAsTask] = useState(false);`
- Reset behavior:
- When switching tools (`useEffect` on `selectedTool`), reset `runAsTask(false)`.
- When clearing the list in `ListPane.clearItems`, also call `setRunAsTask(false)`.
- UI additions:
- New checkbox control block to toggle “Run as task”:
- Checkbox `id="run-as-task"`, bound to `runAsTask`, with `onCheckedChange` → `setRunAsTask(checked)`.
- Label “Run as task”.
- Run button disabling conditions expanded to include `isPollingTask`.
- Run button text shows spinner with conditional label:
- If `isToolRunning || isPollingTask` → show spinner and text `isPollingTask ? "Polling Task..." : "Running..."`.
- Call invocation change:
- When clicking “Run Tool”, the `callTool` is invoked with `(selectedTool.name, params, metadata?, runAsTask)`.
- ToolResults relay:
- Passes `isPollingTask` to `<ToolResults />`.
---
### client/src/components/ToolResults.tsx
- Props shape changed:
- Added optional prop: `isPollingTask?: boolean`.
- Task-running banner logic:
- Extracts related task from the tool result’s `_meta["io.modelcontextprotocol/related-task"]` if present.
- Computes `isTaskRunning` as `isPollingTask ||` a text-heuristic against `structuredResult.content` entries that contain text like “Polling” or “Task status”.
- Header “Tool Result:” now conditionally shows:
- `Error` (red) if `isError` is true, else
- `Task Running` (yellow) if `isTaskRunning`, else
- `Success` (green).
No other changes to validation or rendering of content blocks.
---
### client/src/components/TasksTab.tsx (new file)
- A brand new tab to list and inspect tasks.
- Key elements:
- Imports `Task` type and multiple status icons.
- `TaskStatusIcon` component maps task `status` to an icon and color.
- Main `TasksTab` props: `tasks`, `listTasks`, `clearTasks`, `cancelTask`, `selectedTask`, `setSelectedTask`, `error`, `nextCursor`.
- Left column (`ListPane`): lists tasks, shows status icon, `taskId`, `status`, and last update time; button text changes to “List More Tasks” if `nextCursor` present; disables button if no cursor and list non-empty.
- Right column:
- Shows error `Alert` if `error` prop provided.
- If a task is selected: header with `Task Details`, a Cancel button when `status === "working"` (shows a spinner while cancelling), and a grid of task fields: Status (with colored label and icon), Last Updated, Created At, TTL (shows “Infinite” if `ttl === null`, otherwise shows numeric with `s` suffix), optional Status Message, and full task JSON via `JsonView`.
- If no task is selected: centered empty state with a “Refresh Tasks” button.
---
### client/src/lib/hooks/useConnection.ts
- Imports added from `@modelcontextprotocol/sdk/types.js`:
- `ListTasksResultSchema`, `CancelTaskResultSchema`, `TaskStatusNotificationSchema`.
- Client capabilities on `connect`:
- Added `tasks: { list: {}, cancel: {} }` into the `clientCapabilities` passed to `new Client(...)`.
- Notification handling setup:
- The hook’s notification schema registration now includes the `TaskStatusNotificationSchema` in the `setNotificationHandler` list so the app receives `notifications/tasks/status`.
- New hook functions:
- `cancelTask(taskId: string)` sends `tasks/cancel` with `CancelTaskResultSchema`.
- `listTasks(cursor?: string)` sends `tasks/list` with `ListTasksResultSchema`.
- Exports:
- Returned object now includes `cancelTask` and `listTasks`.
---
### client/src/utils/configUtils.ts
- Added a new getter:
- `export const getMCPTaskTtl = (config: InspectorConfig): number => { return config.MCP_TASK_TTL.value as number; };`
---
### client/src/lib/configurationTypes.ts
- `InspectorConfig` type extended with a new item:
- `MCP_TASK_TTL: ConfigItem;`
- Includes descriptive JSDoc about default TTL in milliseconds for newly created tasks.
---
### client/src/lib/constants.ts
- `DEFAULT_INSPECTOR_CONFIG` extended with a default for task TTL:
- Key: `MCP_TASK_TTL`
- Label: `"Task TTL"`
- Description: `"Default Time-to-Live (TTL) in milliseconds for newly created tasks"`
- Default `value: 60000`
- `is_session_item: false`
---
### client/src/components/__tests__/ToolsTab.test.tsx
- Expectations updated due to new `callTool` signature (4th arg `runAsTask`). Everywhere the test asserts a `callTool` invocation, an additional trailing `false` argument was added to reflect the default state when the box isn’t checked.
- Examples of added trailing `false` at various assertion points (line offsets from diff): after calls around prior lines 132, 157, 193, 236, 257, 279, 297, 818, 1082 (now passing 4 arguments: name, params, metadata-or-undefined, false).
---
### Additional notes
- The Tasks feature is wired end-to-end:
- Client capability declaration (list/cancel)
- Notification handler for `notifications/tasks/status`
- Tools call augmentation with `task` `{ ttl }`
- Polling loop using `tasks/get` and `tasks/result`
- UI feedback in Tools and dedicated Tasks tab
- Configurable TTL via new config item and getter
* Fix issue where displayed task on task tab was not updated when task completes, leaving the cancel task button available.
* Handle button the same when input_requred or working state
* ### What changed
- Added **receiver-side (client-side) Tasks support** to the Inspector client for task-augmented **server → client** requests.
- When the server sends `sampling/createMessage` or `elicitation/create` with `params.task`, the client now:
- Creates a local task and immediately returns a `CreateTaskResult` (`{ task: ... }`).
- Runs the underlying user-driven flow asynchronously.
- Updates task state to `completed` / `failed` and makes the final payload available via `tasks/result`.
- Implemented server polling handlers backed by the local task store:
- `tasks/get`
- `tasks/result` (blocks until payload is ready)
- `tasks/list`
- `tasks/cancel`
- Advertises task-augmented request capabilities via `capabilities.tasks.requests.sampling.createMessage` and `capabilities.tasks.requests.elicitation.create` when the corresponding callbacks are provided.
- Emits best-effort `notifications/tasks/status` updates as local task status changes.
* Fix review requests.
* In the ToolsTab, when a tool call results in an elicitation request, the app automatically switches to the elicitation tab, and once submitted, switches back to the ToolsTab to view the result of the tool call.
However, when a tool call results in a sampling request, it does not switch automatically to the SamplingTab and when the sampling request form is submitted it does not automatically switch back to the ToolsTab to view the result of the tool call.
These changes make the sampling use case work like the elicitation one. Tests were added.
- Updated version in root package.json
- Updated version in cli/package.json
- Updated version in client/package.json
- Updated version in server/package.json
- Updated workspace dependencies in root package.json
- Updated package-lock.json via npm install
Co-authored-by: Ola Hungerford <olaservo@users.noreply.github.com>
* Pinned server-everything, fixed all tests to work with current pinned version, fixed problem with undetected failures (isError: true payloads).
* First working vitest implementation
* Refactoring some single-use configs fixtures and into the refeencing tests
* No tests refere to server-everything (or any other server from a registry), all tests actually validate what they say they test.
* Removed server-everything dep from CI, minor cleanup
* Addressed Claude PR review comments: Added tsx dev dependency, beefed up process termination (possible leak on Windows), beefed up http server cleanup (close all connections), removed unused hasValidJsonOutput, reduced CLI timeout to give it breathing room with vitest timeout.
* Made both stdio and http test servers fully composable, cleaned up types, terminology, and usage.
Update @modelcontextprotocol/sdk from 1.24.3 to 1.25.2 to fix ReDoS
vulnerability (GHSA-8r9q-7v3j-jr4g) and qs to 6.14.1 to fix DoS
vulnerability (GHSA-6rw7-vpxm-498p).
🦉 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Version 0.17.3 had TypeScript build errors that prevented successful builds. This patch release fixes those errors and bumps the version to 0.17.4.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
* In package.json under cli/, client/, server/ and /
- bump @modelcontextprotocol/sdk to ^1.20.1
* In client/package.json
- bump @vitejs/plugin-react to ^5.0.4
- bump vite to ^7.1.11
* In package-lock.json
- bump playwright to 1.56.1
- cascading changes to rollup and other dependencies
* In package.json under cli/, client/, server/ and /
- bump @modelcontextprotocol/sdk to ^1.20.1
* In client/package.json
- bump @vitejs/plugin-react to ^5.0.4
- bump vite to ^7.1.11
* In package-lock.json
- bump playwright to 1.56.1
- cascading changes to rollup and other dependencies
- New feature: Connection Type
- Reverts "fix: filter out client_secret when storing OAuth client information"
- Fixes STDIO "Headers is undefined" message when connecting to an SSE server.
- in createCustomFetch function
- convert finalHeaders to headers object for node-fetch compatibility
- for SSE streams, convert node stream to response body to web ReadableStream since EventSource polyfill expects web-compatible stream
* In package-lock.json and package.json
- add node-fetch as a dependency
This fixes#600
- Introduced CustomHeaders component for managing custom headers.
- Updated Sidebar to include CustomHeaders component.
- Enhanced useConnection hook to handle custom headers and legacy auth migration.
- Added tests for custom headers functionality.
- Updated package.json and package-lock.json for new dependencies.
- set TS SDK to 1.17.5, which has the automatic log level handling
* In useConnection.ts
- push the logging/setLevel message onto the message history stack so it is clear in the Inspector that it has been sent.
- Install husky and lint-staged dev dependencies
- Configure pre-commit hook to run prettier on staged files
- Only format changed files to improve performance
- Prevents CI formatting failures by formatting locally
Updated client dependencies to ensure compatibility with latest versions.
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
