Individual skill

harness-mcp-scan

Static security scan of a harness's declared MCP surface via `harness mcp-scan {path}`. Reads `.mcp/servers.json` + `.harness/claims.json`. Pure-read, no dispatch. Exits 1 on findings at or above `--fail-on` severity.

plugins/ruflo-metaharness/skills/harness-mcp-scan/SKILL.md

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Observed behavior: Network or broad shell
Last checked: Nov 9, 2026

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Repository stars (not skill ratings): 81,352
Repository last updated: Nov 9, 2026
License: MIT

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Calls `harness mcp-scan` to enumerate every declared MCP server + tool
and flag policy / permission / dependency issues. Never executes any
tool; pure static analysis.

## Algorithm

Implementation: [`scripts/mcp-scan.mjs`](../../scripts/mcp-scan.mjs).

1. Invoke the pinned `harness` binary (`metaharness@~0.4.1`, resolved from a
   local install or the one-time `~/.ruflo/metaharness-cache-<pin>` cache —
   never `@latest`): `harness mcp-scan <path> --json`.
2. Parse `findings[]` with `{ severity, id, server, tool, message }`.
3. `--fail-on <severity>`: exit 1 when any finding is at or above that
   level. Default `high`.