io.github.rigour-labs/rigour

rigour-mcp

Is the io.github.rigour-labs/rigour MCP server down? No. It answered initialize and tools/list in the probe of 2026-10-30.

Lets coding agents review their change, find an existing helper, and recall the team's lessons.

alive probed 2026-11-14 · unchanged since 2026-10-30

11tools

3.9ktokens in Claude Opus 5.5

1.9 %of Claude's 200k window

1.5×the median server

1.6 sto initialize

7 msto list tools

Run it: npx -y @rigour-labs/mcp@7.0.14 (stdio, probed in a container with the network off)
Host: npmjs.com
Reports itself as: rigour-mcp 7.0.14
Capabilities: logging, prompts, resources, tools
Instructions: none
Of a 1M window: 0.4 % of a 1M context window
Count: 3.9k tokens in Claude Opus 5.5, exact, measured 2026-10-16. With the Claude Code prefix mcp__…__ on each tool name: 4.0k. The o200k_base estimate is 2.3k. Counted again when the tool definitions change. Method.
Repository: https://github.com/rigour-labs/rigour
Registry: active, updated 2026-10-19 · registry entry

Most expensive tools

The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.67×.

Tool	≈ Claude tokens	o200k estimate	Share of this server
rigour_check	687	411	18 %
rigour_check_pattern	518	310	13 %
rigour_review	413	247	11 %
rigour_remember	376	225	10 %
rigour_context_scope	328	196	8 %

Other registry entries on npmjs.com, the ones next to this name; all of them.

Servers that mention existing or lessons.

The result of the latest probe, the tool count and the token cost. The feed has an entry for every probe that changed them.

Stops answering, comes back, tool set or cost changes. One confirmation mail first, a stop link in every mail.