faf-cli: Instructions file for GitHub Copilot

.github/copilot-instructions.md

faf-cli copilot-instructions.md is an instructions file for GitHub Copilot from Wolfe-Jam/faf-cli. It costs 320 tokens per session, scanned A, original, MIT.

Repository instructions for faf-cli, a TypeScript command-line tool that stores persistent AI context in a versioned .faf file. Its show command renders that context for people to read.

In plain words
What is it for?
Use it when working on faf-cli or projects that create, version, inspect, or display .faf persistent AI-context files.
Why use it?
It tells a coding assistant the project's technology, purpose, and expected commands before it changes the repository.

Instructions file for GitHub Copilot

Written for GitHub Copilot: a Copilot instructions file.

This is Wolfe-Jam/faf-cli's own configuration. It tells GitHub Copilot how to work on faf-cli 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 faf-cli configures →

Reuse

Borrowing it

Nothing to install: this file belongs to Wolfe-Jam/faf-cli. 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-cli/main/.github/copilot-instructions.md
Clone the repo
git clone --depth 1 https://github.com/Wolfe-Jam/faf-cli

Made for: GitHub Copilot.

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 faf-cli copilot-instructions.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/wolfe-jam/faf-cli/copilot-instructions/github.svg)](https://agentmods.dev/instructions/wolfe-jam/faf-cli/copilot-instructions)
Your own site
<a href="https://agentmods.dev/instructions/wolfe-jam/faf-cli/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/wolfe-jam/faf-cli/copilot-instructions/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.

agentmods 80×15 button for faf-cli copilot-instructions.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/wolfe-jam/faf-cli/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/wolfe-jam/faf-cli/copilot-instructions.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 320 This file is loaded in full into every session.
When invoked 320 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 $0.00320 $0.00320
Opus 5.5 $0.00128 $0.00128
Sonnet 5.5 $0.00064 $0.00064
Haiku 4.5 $0.00032 $0.00032

Measured 1mo ago against content hash 156b5885fbd6, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

faf-cli copilot-instructions.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 1mo ago.

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.

.github/copilot-instructions.md · 24 lines

What it actually says

GitHub Copilot Instructions — faf-cli v6

Authored from project.faf by FAF. Copilot reads these instructions on every request in this repository — keep them short and broadly applicable.

CLI for the .faf format — persistent AI context that versions with your code, and (v6.7, The HTML Edition) renders human-visible on-demand via faf show. IANA-registered media type: application/vnd.faf+yaml.

Tech stack

  • Language: TypeScript

Project context

  • Who: Developers and teams using AI coding assistants
  • What: Persistent AI Context Standard — project DNA for AI. IANA-registered. Anthropic-merged.
  • Why: Eliminates 91% context re-discovery tax — define once, AI remembers forever
  • Where: npm registry, Homebrew, GitHub
  • When: Production since September 2025; v7.0 The GIT Version, June 2026
  • How: bunx faf-cli auto, then project.faf versions with your code — faf show renders it human-visible
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. 1mo ago First seen · 24 lines · 320 tokens per session scan A 156b5885fbd6

Subscribe to this mod's changes

faf-cli copilot-instructions.md is an instructions file published in the GitHub repository Wolfe-Jam/faf-cli (42 stars, last pushed yesterday), licensed MIT. It adds 320 tokens to every session, about $0.0013 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 2026-08-30.

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