Control Keel MCP Server

ControlKeel is an agent control plane for day-to-day governed engineering. Through observation, findings and evaluation, it learns your intent rules, review taste and delivery habits, turning them into typed memory, policy checks and proof bundles. CK sits between your coding agents and production as a portable "company brain": comparing intended delivery against actual delivery and turning raw agent intent into…

People connecting developer tools tools to Claude, Cursor, VS Code, or another MCP client. The project is written in Elixir.

VERIFIED ACTIVE

LAST COMMIT 2026-08-24 · ★ 11 · #23 OF 139 MAINTAINED DEVELOPER TOOLS · VERIFIED 2026-08-25

NOASSERTION · Elixir · how we verify → /methodology

01 · Install Control Keel

Claude Code

claude mcp add aryaminus-controlkeel -- npx -y @aryaminus/controlkeel

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "aryaminus-controlkeel": {
      "command": "npx",
      "args": [
        "-y",
        "@aryaminus/controlkeel"
      ]
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions

license no standard license detected - usage rights unclear; check the repo before commercial use

npm package @aryaminus/controlkeel - published under the repo owner's npm scope (@aryaminus)

registry namespace io.github.aryaminus is GitHub-verified and matches the repo owner

03 · What Control Keel can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

Latest releases

v0.4.1 · 2026-08-21

ControlKeel v0.4.1 · Install · brew tap aryaminus/controlkeel && brew install controlkeel · npm bootstrap: npm i -g @aryaminus/controlkeel · Unix installer: curl -fsSL | sh · Raw GitHub shell installer: curl -fsSL |…

v0.3.94 · 2026-08-21

ControlKeel v0.3.94 · Install · brew tap aryaminus/controlkeel && brew install controlkeel · npm bootstrap: npm i -g @aryaminus/controlkeel · Unix installer: curl -fsSL | sh · Raw GitHub shell installer: curl -fsSL |…

v0.3.92 · 2026-08-19

ControlKeel v0.3.92 · Install · brew tap aryaminus/controlkeel && brew install controlkeel · npm bootstrap: npm i -g @aryaminus/controlkeel · Unix installer: curl -fsSL | sh · Raw GitHub shell installer: curl -fsSL |…

04 · Who maintains Control Keel

ControlKeel is maintained by aryaminus. We track 2 MCP servers from aryaminus - 2 actively maintained, 14 combined GitHub stars, oldest repo from Mar 2026.

05 · Facts

repository: github.com/aryaminus/controlkeel
category: developer tools - ranked #23 of 139 actively-maintained developer tools servers as of 2026-08-25.
release cadence: 5 releases in the last 90 days (latest 2026-08-21)
registry: io.github.aryaminus/controlkeel (active, first published 2026-04-18)
packages: npm:@aryaminus/controlkeel

06 · Control Keel FAQ

What is Control Keel?

Is Control Keel still maintained?

Yes - as of 2026-08-25, its last commit was 2026-08-24 and it shipped 5 releases in the last 90 days. We re-verify nightly.

How do I install Control Keel?

Run `npx -y @aryaminus/controlkeel`. You can also paste the ready-made client config above.

Does Control Keel run locally?

Yes - it's a stdio server: it runs on your machine (via npx) with your user's permissions. Your data stays local unless the server itself calls external APIs.

07 · Alternatives to Control Keel

Alternatives to Control Keel

Maintained developer tools servers if Control Keel isn't the fit.

Pairs well with

Servers that cover what Control Keel doesn't - only shown when the pairing reason fits the companion.

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