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/michellzappa/headroom/claude-mdgit clone --depth 1 https://github.com/michellzappa/headroomWhat 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 | $0.00005 | $0.00005 |
| Opus 5 | $0.00003 | $0.00003 |
| Sonnet 5 | $0.00001 | $0.00001 |
| Haiku 4.5 | $0.00001 | $0.00001 |
Grade A, and why
headroom CLAUDE.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.
This is a copy
100% identical to deepseek-harness CLAUDE.md — 3 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
What it actually says
@AGENTS.md
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 · 2 lines · 5 tokens per session scan A 336cc4fbf19b
headroom CLAUDE.md is an instructions file published in the GitHub repository michellzappa/headroom (263 stars, last pushed 7d ago), licensed MIT. It adds 5 tokens to every session, about $0.0000 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to deepseek-harness CLAUDE.md, differing in 3 lines, and is treated as a copy.
Other instructions, from other repositories
FastLED CLAUDE.md
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FastLED GEMINI.md
Gemini CLI instructions for FastLED/FastLED, a project described as: The FastLED library for colored LED animation on Arduino. Please direct questions/requests for help to the FastLED Reddit community: http://fastled.io/r We'd like to use github "issues" just for tracking library bugs / enhancements.
ROS AGENTS.md
Instructions for lawliet206/ROS, covering agents.md, 项目是什么, 环境版本（不可随意升级/降级）, 目录结构（catkin 工作空间根 = 仓库根） and 重要 launch 与脚本（命名与参数以代码为准，改文档必须同步）.
fridge_tracker AGENTS.md
AGENTS.md instructions for xueyouluo/fridge_tracker, covering 仓库指南, 项目结构与模块组织, 构建、测试与开发命令, 代码风格与命名约定 and 测试规范.
clawdmeter-plus CLAUDE.md
Claude Code instructions for sorryhumans/clawdmeter-plus, covering project context, hardware (critical pins), amoled-2.16 (original), amoled-1.8 (newer port) and amoled-1.8 (c6) — waveshareamoled18c6.
AppClaw CLAUDE.md
Instructions for appclawhq/AppClaw, covering claude.md, what is appclaw?, build & run commands, architecture and entry point & cli modes (src/index.ts).