Borrowing it
Nothing to install: this file belongs to ckorhonen/claude-skills. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/ckorhonen/claude-skills/main/AGENTS.mdgit clone --depth 1 https://github.com/ckorhonen/claude-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/ckorhonen/claude-skills/agents-md)<a href="https://agentmods.dev/instructions/ckorhonen/claude-skills/agents-md"><img src="https://agentmods.dev/badge/instructions/ckorhonen/claude-skills/agents-md/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.
<a href="https://agentmods.dev/instructions/ckorhonen/claude-skills/agents-md"><img src="https://agentmods.dev/badge/instructions/ckorhonen/claude-skills/agents-md.svg" alt="Reviewed on agentmods" width="80" 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 | $0.00499 | $0.00499 |
| Opus 5 | $0.00249 | $0.00249 |
| Sonnet 5 | $0.00100 | $0.00100 |
| Haiku 4.5 | $0.00050 | $0.00050 |
Grade A, and why
claude-skills 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 9d 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 — 34 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Agent Instructions
Project Facts
This repository is a collection of reusable AI-agent skills under skills/. The README is the public catalog and should stay in sync with skill additions, removals, and renamed skill folders.
Commands
No repo-wide package manifest or test command is present at the root. Inspect the specific skills/<skill-name>/ directory before changing a skill; some skills may include their own helper scripts or package manifests.
Repository Map
skills/: canonical skill directories andSKILL.mdfiles..agents/: shared agent config (hooks, rules, settings). Both.claudeand.codexare top-level symlinks to.agents/, and.agents/skillssymlinks back to../skills, so all agents resolve the same config and skill set..agents/hooks/: hook scripts for markdown formatting, frontmatter validation, protected-file checks, README sync checks, and dangerous-command blocking (reachable as.claude/hooks/)..agents/settings.json: hook wiring (reachable as.claude/settings.json).
Agents and Commands
agents/: publishable subagent definitions (7 files, e.g.code-reviewer.md,orchestrator.md,security-auditor.md) mirroring the user's global agent install.commands/: publishable command definitions (4 files:add-tests.md,install-conductor.md,pr-create.md,simplify.md) mirroring the user's global command install..agents/commands/README.mdpoints here; these root directories are the catalog copies.
Source of Truth & Sync
~/.agents/skillson this machine is the live source of truth for skills; this repo is the published catalog and is currently about 2 months stale.- Refresh catalog copies from the global install with
scripts/sync-from-global.sh(dry-run by default; pass--applyto write,--allto also copy new global-only skills).
Agent Workflow
- Keep skill edits self-contained to the relevant
skills/<skill-name>/folder unless the README catalog also needs to change. - When adding or renaming a skill, update
README.mdin the same pass. - Do not invent validation commands. Use scripts present in the touched skill folder, or document manual validation if no script exists.
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.
- 9d ago First seen · 34 lines · 499 tokens per session scan A f3c067f30956
claude-skills AGENTS.md is an instructions file published in the GitHub repository ckorhonen/claude-skills (14 stars, last pushed 2mo ago), licensed MIT. It adds 499 tokens to every session, about $0.0025 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
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.
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 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).
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).
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.
deepseek-harness AGENTS.md
AGENTS.md instructions for deepseek-ai/deepseek-harness, covering agents.md, pre-stable apis and released session data, repository layout, commands and host sandbox failures.