Michael Suchacz 2f996d765a feat: remove task management MCP tools (#28354)
Removes the six task-management tools from the MCP tool surface in
`codersdk/toolsdk`:

- `coder_create_task`
- `coder_delete_task`
- `coder_list_tasks`
- `coder_get_task_status`
- `coder_send_task_input`
- `coder_get_task_logs`

Both the coderd-hosted MCP server (`coderd/mcp`) and the CLI `coder exp
mcp server` derive their tool list from `toolsdk.All`, so removing the
registry entries removes the tools from both servers with no server-side
changes.

The MCP server documentation (`docs/ai-coder/mcp-server.md`) is updated
to drop the task-management entry from the tool overview.

## What stays

- `coder_report_task` is intentionally kept: it is the agent-side
status-reporting mechanism (`WithTaskReporter`), already excluded from
the hosted MCP server, and required by `coder exp mcp server`, Claude
Code configuration, and scaletest.
- The `codersdk` Task SDK methods (`CreateTask`, `DeleteTask`, `Tasks`,
`TaskLogs`, etc.) and the Tasks feature (CLI, UI, API) are untouched;
this PR only removes MCP tool registration.
- The task-only `taskIDDescription` helper is deleted; `userDescription`
stays (used by `coder_create_workspace`).

The code change is deletion-only: 970 removed lines across `toolsdk.go`
and its test file, no added behavior.

## Validation

- `go build ./...`, `go test ./coderd/mcp/`, and targeted
`golangci-lint` pass. `go test ./codersdk/toolsdk/` passes all tests;
the package-level goleak failure (agentssh goroutines) reproduces
identically on unmodified `main` and is unrelated to this diff.
- `pnpm run lint-docs` passes on the docs change.
- Remote dogfood UAT ran against the toolsdk change and passed:
`tools/list` on both the hosted MCP endpoint and `coder exp mcp server`
confirms the six tools are absent and the remaining surface is intact
(34 hosted tools; CLI adds `search`/`fetch`), a `tools/call` of
`coder_get_authenticated_user` succeeds, and calling a removed tool
returns `-32602 unknown tool`. `coder_report_task` still registers in
the CLI server when `CODER_MCP_APP_STATUS_SLUG` is set.
- The failing `Pixel / Review` commit status is unrelated: this PR
contains no `site/` changes, and the same status fails on the last 8
`main` commits including this PR's merge base (`676b9bb06bf`).

> Mux acted on Mike's behalf to create this pull request.
2026-08-20 12:07:30 +02:00
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Coder is a self-hosted platform for cloud development environments and AI coding agents. Workspaces are defined with Terraform, connected through a secure Wireguard® tunnel, and automatically shut down when not used. Coder Agents runs a native AI coding agent whose loop executes in the control plane on your infrastructure, with no API keys in workspaces.

  • Define cloud development environments in Terraform
    • EC2 VMs, Kubernetes Pods, Docker Containers, etc.
  • Automatically shutdown idle resources to save on costs
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  • Delegate coding work to AI agents on your infrastructure
    • Bring any model (Anthropic, OpenAI, Google, Bedrock, self-hosted)
    • No LLM credentials in workspaces, user identity on every action
    • Centralized model governance, cost tracking, and audit logging

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Quickstart

The most convenient way to try Coder is to install it on your local machine and experiment with provisioning cloud development environments using Docker (works on Linux, macOS, and Windows).

# First, install Coder
curl -L https://coder.com/install.sh | sh

# Start the Coder server (caches data in ~/.cache/coder)
coder server

# Navigate to http://localhost:3000 to create your initial user,
# create a Docker template and provision a workspace

Install

The easiest way to install Coder is to use the install script for Linux and macOS. For Windows, use the latest ..._installer.exe file from GitHub Releases.

curl -L https://coder.com/install.sh | sh

You can run the install script with --dry-run to see the commands that will be used to install without executing them. Run the install script with --help for additional flags.

See install for additional methods.

Once installed, you can start a production deployment with a single command:

# Automatically sets up an external access URL on *.try.coder.app
coder server

# Requires a PostgreSQL instance (version 13 or higher) and external access URL
coder server --postgres-url <url> --access-url <url>

Use coder --help to get a list of flags and environment variables. See the install guides for a complete tutorial.

Documentation

Browse the documentation or visit a specific section below:

  • Workspaces: Workspaces contain the IDEs, dependencies, and configuration information needed for software development
  • Templates: Templates are written in Terraform and describe the infrastructure for workspaces
  • Coder Agents: Delegate coding work to AI agents running on your self-hosted infrastructure
  • Administration: Learn how to operate Coder
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  • IDEs: Connect your existing editor to a workspace

Support

Feel free to open an issue if you have questions, run into bugs, or have a feature request.

Join our Discord to provide feedback on in-progress features and chat with the community using Coder!

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