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/kai-linux/agent-os/claude-mdgit clone --depth 1 https://github.com/kai-linux/agent-osWhat 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 | $0.00051 | $0.00051 |
| Opus 5 | $0.00026 | $0.00026 |
| Sonnet 5 | $0.00010 | $0.00010 |
| Haiku 4.5 | $0.00005 | $0.00005 |
Grade A, and why
agent-os 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 2d 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.
What it actually says
CLAUDE.md
Companion doc for Codex: AGENTS.md. The same rules apply to Claude Code as to Codex — see AGENTS.md for the canonical list and keep both files in sync when updating.
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.
- 2d ago First seen · 4 lines · 51 tokens per session scan A d91d921a3051
agent-os CLAUDE.md is an instructions file published in the GitHub repository kai-linux/agent-os (5 stars, last pushed 1mo ago), licensed MIT. It adds 51 tokens to every session, about $0.0003 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.
Other instructions, from other repositories
harness-sdk AGENTS.md
AGENTS.md instructions for strands-agents/harness-sdk, covering agent development guide - strands agents monorepo, context, monorepo layout, where the "why" lives: team/ and writing code.
itsaplan AGENTS.md
AGENTS.md instructions for croffasia/itsaplan, covering agents.md, core coding principles, writing style (docs, comments, chat), golden rules and layout.
itsaplan CLAUDE.md
Claude Code instructions for croffasia/itsaplan, a project described as: Open-source, self-hosted alternative to Linear and Plane. Project management and issue tracking where teams and AI agents work side by side to plan and ship products.
harness-sdk CLAUDE.md
Claude Code instructions for strands-agents/harness-sdk, a project described as: Build an agent harness and control it end-to-end. Open-source SDK for production AI agents in Python & TypeScript - any model, any cloud.
scrum-skills copilot-instructions.md
Instructions for abrahamFerga/scrum-skills, covering github copilot — scrum skills, available skills, persona instructions, developer and product owner.
decapod CLAUDE.md
Instructions for DecapodLabs/decapod, covering claude.md - agent entrypoint, orientation & documentation, mandatory prompt safety gate, project context and quick start.