Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add instructions/madviking/headless-pm/agents-mdgit clone --depth 1 https://github.com/madviking/headless-pmWrote this? Show the measurements
A badge for your README with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them.
[](https://agentmods.dev/instructions/madviking/headless-pm/agents-md)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 | $0.03108 | $0.03108 |
| Opus 5 | $0.01554 | $0.01554 |
| Sonnet 5 | $0.00622 | $0.00622 |
| Haiku 4.5 | $0.00311 | $0.00311 |
Grade A, and why
headless-pm 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 3d 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.
Copies of this mod
1 near-identical copy found in the catalogue:
- headless-pm CLAUDE.md — 100% identical, 2 lines differ
How it starts
The opening of the file, as written. The whole thing — 325 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md
This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
Environment Setup
Automated Setup (Recommended)
# Run universal setup script - handles platform-specific requirements
./setup/universal_setup.sh
# This will:
# - Detect your architecture (ARM64 for native Mac, x86_64 for Claude Code)
# - Create the appropriate virtual environment (venv or claude_venv)
# - Install correct package versions for your platform
# - Create .env from env-example if needed
Manual Setup (if needed)
# For LLM agents (x86_64), use claude_venv:
python -m venv claude_venv
source claude_venv/bin/activate
pip install pydantic==2.11.7 pydantic-core==2.33.2
pip install -r setup/requirements.txt
# For native Mac (ARM64), use standard venv:
python -m venv venv
source venv/bin/activate
pip install -r setup/requirements.txt
# Configure environment
cp env-example .env
# Edit .env with API keys and database configuration
# Initialize database
python -m src.cli.main init
python -m src.cli.main seed # Optional: add sample data
Running the Application
Quick Start (Recommended)
# Activate your virtual environment first
source venv/bin/activate # or source claude_venv/bin/activate
# Use the automated start script (checks environment, DB, starts server)
./start.sh
Manual Start
# Run API server
bash start.sh
The start.sh script automatically:
- ✅ Validates Python 3.11+ requirement
- ✅ Checks required packages are installed
- ✅ Creates .env from env-example if needed
- ✅ Tests database connection
- ✅ Initializes database if needed
- ✅ Checks port availability
- ✅ Starts server with proper configuration
- ✅ Starts only services with defined ports in .env
Service Port Configuration:
- Services are only started if their port is defined in
.env - To skip a service, remove or comment out its port variable:
SERVICE_PORT- API server (default: 6969)MCP_PORT- MCP server (default: 6968)DASHBOARD_PORT- Web dashboard (default: 3001)
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.
- 3d ago First seen · 325 lines · 3,108 tokens per session scan A 7b7f5279d00c
headless-pm AGENTS.md is an instructions file published in the GitHub repository madviking/headless-pm (346 stars, last pushed 7mo ago), licensed MIT. It adds 3,108 tokens to every session, about $0.0155 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 2026-08-30.
Other instructions, from other repositories
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
spec-kit AGENTS.md
AGENTS.md instructions for github/spec-kit, covering agents.md, about spec kit and specify, quickstart — add a new integration in 5 steps, integration architecture and integrationmanifest — file tracking.
codex AGENTS.md
AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, applying the notice (cutover) and fallback chain (never fail the build).
next.js AGENTS.md
Instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.