Rigour MCP Server

Your AI agent just tried to commit an AWS secret. Rigour blocked it in <100ms. It runs locally over stdio via the published package.

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

VERIFIED ACTIVE

LAST COMMIT 2026-08-22 · ★ 26 · #21 OF 139 MAINTAINED DEVELOPER TOOLS · VERIFIED 2026-08-25

MIT · TypeScript servers · how we verify → /methodology

01 · Install Rigour

Claude Code

claude mcp add rigour-labs-rigour -- npx -y @rigour-labs/mcp

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "rigour-labs-rigour": {
      "command": "npx",
      "args": [
        "-y",
        "@rigour-labs/mcp"
      ]
    }
  }
}

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 MIT - declared in the repository

npm package @rigour-labs/mcp - published under the repo owner's npm scope (@rigour-labs)

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

03 · What Rigour can do

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

Latest releases

v6.0.0 · 2026-08-22

6.0.0 (2026-08-22) · introduce Agent Transaction Firewall as deterministic execution kernel · human arbitration now fail-closes (timeout-deny) instead of · auto-approving after 60s. Agent-facing rigour_run / supervised…

v5.5.4 · 2026-08-11

5.5.4 (2026-08-11) · agent team Ux polishing

v5.5.3 · 2026-08-10

5.5.3 (2026-08-10) · allow same-day homebrew installs

04 · Who maintains Rigour

rigour is maintained by rigour-labs. It's the only MCP server we track from this author; the repo dates to Jan 2026.

05 · Facts

repository: github.com/rigour-labs/rigour
category: developer tools - ranked #21 of 139 actively-maintained developer tools servers as of 2026-08-25.
release cadence: 10+ releases in the last 90 days (latest 2026-08-22)
registry: io.github.rigour-labs/rigour (active, first published 2026-01-27 · 72 versions)
packages: npm:@rigour-labs/mcp

06 · Rigour FAQ

What is Rigour?

Your AI agent just tried to commit an AWS secret. Rigour blocked it in <100ms. It runs locally over stdio via the published package.

Is Rigour still maintained?

Yes - as of 2026-08-25, its last commit was 2026-08-22 and it shipped 10+ releases in the last 90 days. We re-verify nightly.

How do I install Rigour?

Run `npx -y @rigour-labs/mcp`. You can also paste the ready-made client config above.

Does Rigour 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 Rigour

Alternatives to Rigour

Maintained developer tools servers if Rigour isn't the fit.

Pairs well with

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

More developer tools MCP servers · Rn Devtools Hub · Sugar · Cognitive AI Memory · Your Memory · Saidsef MCP GitHub PR Issue Analyser

More TypeScript MCP servers · TensorFeed x402 Base Reader · Claude Prompt Optimizer · Gemini MCP · Groundtruth · Qseow MCP · see all