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/flagos-ai/skills/claude-mdgit clone --depth 1 https://github.com/flagos-ai/skillsWrote 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.
[](https://agentmods.dev/instructions/flagos-ai/skills/claude-md)<a href="https://agentmods.dev/instructions/flagos-ai/skills/claude-md"><img src="https://agentmods.dev/badge/instructions/flagos-ai/skills/claude-md.svg" alt="Measured on agentmods" height="20"></a>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 | $0.00992 | $0.00992 |
| Opus 5 | $0.00496 | $0.00496 |
| Sonnet 5 | $0.00198 | $0.00198 |
| Haiku 4.5 | $0.00099 | $0.00099 |
Grade A, and why
skills 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 6d 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.
How it starts
The opening of the file, as written. The whole thing — 90 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.
Repository Overview
This is the FlagOS Skills repository — a collection of reusable Agent Skills for FlagOS, a fully open-source AI system software stack for heterogeneous AI chips. Skills are folder-based capability packages that teach agents to reliably perform domain-specific tasks (model migration, deployment verification, complex workflows).
This repository follows the Agent Skills open standard, aligned with anthropics/skills, huggingface/skills, and openai/skills.
There is no build system or package manager. This is a pure content repository of Markdown-based skill definitions with supporting scripts and resources.
Repository Structure
├── .claude-plugin/ # Claude Code plugin manifest
│ └── marketplace.json # Plugin bundles for Claude Code marketplace
├── .cursor-plugin/ # Cursor plugin manifest
│ ├── marketplace.json # Cursor marketplace listing
│ └── plugin.json # Plugin metadata
├── agents/ # Codex / Gemini CLI fallback
│ └── AGENTS.md # Skills index for agents without native support
├── assets/ # Repository-level static resources
├── contributing.md # Contribution guidelines
├── gemini-extension.json # Gemini CLI extension manifest
├── scripts/ # Repository-level utility scripts
│ └── validate_skills.py # Batch validate all skills
├── skills/ # Actual skill directories
│ ├── model-migrate-flagos/ # Example: model migration workflow
│ └── ...
├── spec/ # Agent Skills standard & local conventions
│ ├── README.md # Conventions and cross-reference to standards
│ └── agent-skills-spec.md # Redirect to agentskills.io/specification
└── template/ # Template for creating new skills
└── SKILL.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.
- 6d ago First seen · 90 lines · 992 tokens per session scan A 11cdfd89774e
skills CLAUDE.md is an instructions file published in the GitHub repository flagos-ai/skills (19 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 992 tokens to every session, about $0.0050 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).
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.
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).
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.
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
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.