gemini-faf-mcp: Instructions file for Codex

AGENTS.md

gemini-faf-mcp AGENTS.md is an instructions file for Codex, OpenCode from Wolfe-Jam/gemini-faf-mcp. It costs 927 tokens per session, scanned A, original, MIT.

A project instruction file for the gemini-faf-mcp repository. It explains FAF, a registered format for storing a project’s core context, and describes the Python MCP server that reads, checks, scores, and exports it.

In plain words
What is it for?
Use it when working on the server, its FAF validation and export behavior, its BigQuery integration, or its pytest and WJTTC test suites.
Why use it?
It gives AI agents the project’s purpose, technology choices, and required context so developers do not have to restate them each session.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: mentions AGENTS.md; mentions Gemini CLI.

This is Wolfe-Jam/gemini-faf-mcp's own configuration. It tells Codex and OpenCode how to work on gemini-faf-mcp itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything gemini-faf-mcp configures →

Reuse

Borrowing it

Nothing to install: this file belongs to Wolfe-Jam/gemini-faf-mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/Wolfe-Jam/gemini-faf-mcp/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/Wolfe-Jam/gemini-faf-mcp

Made for: Codex, OpenCode.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for gemini-faf-mcp AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/wolfe-jam/gemini-faf-mcp/agents-md.svg)](https://agentmods.dev/instructions/wolfe-jam/gemini-faf-mcp/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/wolfe-jam/gemini-faf-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/wolfe-jam/gemini-faf-mcp/agents-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 927 This file is loaded in full into every session.
When invoked 927 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00927 $0.00927
Opus 5 $0.00464 $0.00464
Sonnet 5 $0.00185 $0.00185
Haiku 4.5 $0.00093 $0.00093

Measured today against content hash 2a5da9910c15, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

gemini-faf-mcp AGENTS.md scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured today.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

AGENTS.md · 95 lines

How it starts

The opening of the file, as written. The whole thing — 95 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md — gemini-faf-mcp

MCP server for FAF — read, validate, auto-detect, score, and export IANA-registered .faf project DNA from Gemini CLI — Python · type: mcp-server · v2.8.0

Authored by faf — do not edit the managed block; refresh with faf export --agents or the faf_agents MCP tool. Hand-written content outside it is preserved.

Setup & build

pip install -e ".[dev]"    # install
python -m build    # build

Run the tests

pytest -q
ruff check .
mypy server.py models.py safe_path.py inject.py src/

Where things live

Path Role
server.py the FastMCP server, every @mcp.tool
models.py 15 reference project.faf templates for faf_model
safe_path.py confine_file_op, every write stays in the project root
inject.py non-destructive faf-managed-block injection
interrogate.py Full-Facts grounding for faf_auto (docker-compose + Makefile signals)
src/gemini_faf_mcp/ client.py + parser helpers over faf-python-sdk
main.py Cloud Run / functions-framework entry point
tests/ pytest, the WJTTC 9-tier suite
pyproject.toml

Conventions

  • Quality Bar: zero_errors
  • Testing: required

Guardrails

  • All changes must pass 245 tests before commit
  • faf-python-sdk handles parsing — server.py delegates
  • Version must match in pyproject.toml, init.py, client.py, server.py, main.py
  • Always OK: read the tree · run the tests (pytest -q) · build the project · ruff check ..
  • Ask first: dependency installs, deletions, migrations, schema changes, publish/release.
  • Never: force-push · push straight to main (branch and open a PR) · commit secrets.

Definition of Done

Done when: ruff check . exits 0 · mypy server.py models.py safe_path.py inject.py src/ exits 0 · pytest -q passes · changes committed with a conventional message.

Read the full file on GitHub · 95 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. today Changed · +1 lines · +22 tokens per session 2a5da9910c15
  2. yesterday Changed · +70 lines · +695 tokens per session 74a7aa642cd6
  3. 8d ago First seen · 24 lines · 210 tokens per session scan A 249f79f1c516

Subscribe to this mod's changes

gemini-faf-mcp AGENTS.md is an instructions file published in the GitHub repository Wolfe-Jam/gemini-faf-mcp (2 stars, last pushed yesterday), licensed MIT. It adds 927 tokens to every session, about $0.0046 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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