# @gemmein/mcp

Gemmein MCP server — gives coding agents the Gemmein guide, API reference, rule/error explainers, and a live integration check (reaffirm) as tools. Read-only: it never creates, edits, or deletes anything.

- **Type:** MCP server
- **Trust:** 60/100 (B), scored on the package rubric
- **Verification:** community-indexed — nobody has claimed this listing
- **Version:** 0.10.0
- **Author:** Gemmein Limited
- **License:** MIT
- **npm:** @gemmein/mcp
- **Source:** https://github.com/gemmeinhq/gemmein-release
- **Compatible clients:** claude-code, cursor, copilot, gemini (basis: transport)

## Trust

60/100 (B), scored on the package rubric
- Publisher verified: no
- Install scripts: nothing suspicious found
- Prompt-injection scan: not run
- Obfuscation scan: not run
- Evidence age: 0 days

## Security scan

- **Status:** clean
- **Scanned:** 2026-09-27T13:54:44.564Z
- **Version scanned:** 0.10.0
- **CVEs:** none found by OSV at scan time

## Tools

9 declared. Statically extracted from the shipped source — a floor on the surface, not a census.
- `guide`
- `reference` — Reach for this while WRITING code against @gemmein/sdk: every method, exact signature, return shape, and the stable error-code table (REFERENCE.md). Use `guide`
- `search_docs` — Use when one question comes up mid-build ('keyed create', 'ifVersion', 'addressed', 'expand') and reading a full document would waste context. Searches the guid
- `explain_rule`
- `explain_error` — Call the moment a GemmeinError reaches you (err.code: conflict, forbidden, unknown_collection, invalid_shape, html_not_allowed, …): what the code means and the 
- `validate_collection_name` — Run at PLANNING time on every collection name you intend to use, before any g.collection(name) call is written. The naming law: lowercase letters, numbers, unde
- `reaffirm_template` — Fetch this when you wire up the app's CI, or when you hand the finished app to your human: reaffirm.mjs, the ready-to-edit harness that re-proves the app's boun
- `explain_relay`
- `check_integration`

## Install

**Verdict: review** — Installable, but 1 thing to check first: No publisher has proved control of this listing; it is indexed, not vouched for.
**Cautions** (coverage gaps and advisories — never blocking)
- No publisher has proved control of this listing; it is indexed, not vouched for.
**Config** (claude-code):
```json
"{\n  \"mcpServers\": {\n    \"mcp\": {\n      \"command\": \"npx\",\n      \"args\": [\n        \"-y\",\n        \"@gemmein/mcp\"\n      ]\n    }\n  }\n}"
```

## Blast radius

Contained to moderate — no credential declaration found, from the publisher, the upstream registry, or the README. Known so far: runs on your machine; read-only tool surface.
- Floor 13, ceiling 31 (tier: unknown)
- `unknown` means the floor and ceiling land in different bands — not measured enough to name one. It does not mean low.
- This is impact, not likelihood. A high radius is not a defect: a filesystem server is supposed to write files. It is never part of the trust score.

## Machine-readable views of this entry

- Signed JSON: https://forgeregistry.com/api/v1/packages/%40gemmein%2Fmcp
- Install plan: https://forgeregistry.com/api/v1/packages/%40gemmein%2Fmcp/install-plan
- Alternatives: https://forgeregistry.com/api/v1/alternatives/%40gemmein%2Fmcp
- HTML page: https://forgeregistry.com/registry/%40gemmein%2Fmcp
- MCP: POST https://forgeregistry.com/api/mcp → `forge_get_package` / `forge_install_plan`

## About this document

Generated by Forge (https://forgeregistry.com) — a compact rendering of the same record served, signed, at the JSON URL above. Trust and scan facts are the registry's own measurements; anything Forge did not measure is named as unmeasured rather than omitted.