What is faf-mcp AGENTS.md?

Project instructions for a TypeScript command-line application built with Bun, a JavaScript runtime and toolkit. They describe setup, testing, project locations, coding rules, security limits, and the process for submitting changes.

Use them when installing, building, testing, linting, navigating, or changing the faf-mcp project, while following its rules for secrets, branches, commits, and pull requests.

They give a coding agent the repository’s rules in one place, including which commands to run and which files or actions require caution. This reduces inconsistent changes and missed checks.

How Wolfe-Jam/faf-mcp configures Codex and OpenCode

Reuse

Borrowing it

Nothing to install: this file belongs to Wolfe-Jam/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/faf-mcp/main/AGENTS.md

Clone the repo

git clone --depth 1 https://github.com/Wolfe-Jam/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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/wolfe-jam/faf-mcp/agents-md/github.svg)](https://agentmods.dev/instructions/wolfe-jam/faf-mcp/agents-md)

Your own site

<a href="https://agentmods.dev/instructions/wolfe-jam/faf-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/wolfe-jam/faf-mcp/agents-md/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/wolfe-jam/faf-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/wolfe-jam/faf-mcp/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 1,101 This file is loaded in full into every session.

When invoked 1,101 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.

Model	Per session	Once invoked
Fable 5.1	$0.01101	$0.01101
Opus 5.5	$0.00440	$0.00440
Sonnet 5.5	$0.00220	$0.00220
Haiku 4.5	$0.00110	$0.00110

Measured today against content hash 9821284a284c, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

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 · 98 lines

How it starts

The opening of the file, as written. The whole thing — 98 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md — faf-mcp

The Interop MCP for Context — the Cursor / IDE Edition. Persistent context for Cursor, VS Code, and every MCP-compatible IDE. IANA-registered application/vnd.faf+yaml. Start with "Use FAF". — TypeScript · type: mcp · v4.1.2

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

Setup & build

npm run build    # build
npm run dev    # dev

Run the tests

npm run test
npm run lint

Where things live

package.json
src/index.ts
src/cli.ts
README.md
tsconfig.json
vercel.json

Conventions

TypeScript strict mode (tsconfig.json)
Style enforced by ESLint — obey the configs

Guardrails

Always OK: read the tree · run the tests (npm run test) · build the project · npm run lint.
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: npm run lint exits 0 · npm run test passes · changes committed with a conventional message.

When stuck

Ask a clarifying question, propose a short plan, or open a draft PR with notes — do not push large speculative changes to main.

Security & secrets

Secrets live in .env.local. Never read or commit them.

Commit & PR

Conventional Commits preferred (feat:, fix:, chore:, …).
Branch off main and open a PR — never commit to main directly.
If build/test scripts or layout change, refresh this file in the same PR (faf export --agents).

Stack

Backend: MCP SDK (TS)
API: MCP (stdio)
Runtime: Node.js >=22
Hosting: npm
Build: TypeScript (tsc)
CI/CD: GitHub Actions
Package Manager: npm

Read the full file on GitHub · 98 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.

today Changed 9821284a284c
8d ago Changed 3cd6123efd39
9d ago Changed 6fc6c13f6836
20d ago Changed bdb52ca8553c
1mo ago Changed fbf4b1ebc3f7
1mo ago Changed · +38 lines · +732 tokens per session f0c848d48a5f
2mo ago First seen · 60 lines · 369 tokens per session scan A 32db35cd60a3

Subscribe to this mod's changes

faf-mcp AGENTS.md is an instructions file published in the GitHub repository Wolfe-Jam/faf-mcp (7 stars, last pushed yesterday), licensed MIT. It adds 1,101 tokens to every session, about $0.0044 per session on Opus 5.5. 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.

ai ai-context cursor developer-tools faf mcp

faf-mcp AGENTS.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
faf-mcp AGENTS.mdWolfe-Jam/faf-mcp	Instructions file	7	yesterday	MIT	A	1,101	Codex, OpenCode
data-scientist copilot-instructions.mdrealnghon/data-scientist	Instructions file	2	4mo ago	MIT	A	373	GitHub Copilot
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next.js AGENTS.mdvercel/next.js	Instructions file	143k	today	MIT	A	7,461	Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchain	Instructions file	149k	today	MIT	A	4,680	Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	5,516	GitHub Copilot
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	3,093	GitHub Copilot

faf-mcp: Instructions file for Codex