Borrowing it
Nothing to install: this file belongs to hamakyo/okf-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/hamakyo/okf-skills/main/CLAUDE.mdgit clone --depth 1 https://github.com/hamakyo/okf-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/hamakyo/okf-skills/claude-md)<a href="https://agentmods.dev/instructions/hamakyo/okf-skills/claude-md"><img src="https://agentmods.dev/badge/instructions/hamakyo/okf-skills/claude-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/hamakyo/okf-skills/claude-md"><img src="https://agentmods.dev/badge/instructions/hamakyo/okf-skills/claude-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 | $0.00478 | $0.00478 |
| Opus 5 | $0.00239 | $0.00239 |
| Sonnet 5 | $0.00096 | $0.00096 |
| Haiku 4.5 | $0.00048 | $0.00048 |
Grade A, and why
okf-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 8d 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 — 52 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Claude Code Instructions
This repository is a public template collection for Claude Code and Codex users who want reusable Skills and OKF project knowledge.
Repository Purpose
Use this repository as a copyable starter kit for:
- Agent-readable project knowledge in
okf/. - Repeatable task workflows in
skills/. - Claude Code guidance in this file.
- Codex guidance in
AGENTS.md.
Before Making Changes
- Read README.md.
- Read relevant docs under docs/.
- For Skill changes, read the target
skills/*/SKILL.mdand update docs when usage changes. - For OKF changes, read okf/index.md and okf/log.md.
Skill Usage Policy
- Use Skills for task process, not project facts.
- Choose the narrowest Skill that matches the work.
- If a task changes behavior, architecture, data shape, or an operating playbook, consider running
update-okfafter the implementation. - Keep Skill descriptions precise enough for automatic or manual selection.
OKF Usage Policy
- OKF is the project knowledge layer.
- Store architecture, domain concepts, data notes, feature behavior, and playbooks under
okf/. - Keep
okf/index.mduseful as the map of the knowledge bundle. - Use
okf/index.mdas a router and load only the concepts relevant to the task. - Keep
okf/log.mdupdated when meaningful knowledge changes are made. - Read
okf/log.mdwhen history is relevant or before editing OKF, not for every task.
Documentation Update Rules
- Update README only for top-level usage or positioning changes.
- Update docs when setup, usage, customization, or OKF rules change.
- Update examples when a change would otherwise make the example misleading.
- Avoid duplicating long explanations across README and docs.
Change Checklist
- README and relevant docs were checked.
- Related Skill files were updated when workflow changed.
- OKF index and log were checked when OKF changed.
- Links are relative and valid.
- No secrets, credentials, private URLs, or personal data were added.
- The final response explains validation performed.
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.
- 8d ago First seen · 52 lines · 478 tokens per session scan A 20c4fe92bc14
okf-skills CLAUDE.md is an instructions file published in the GitHub repository hamakyo/okf-skills (2 stars, last pushed 18d ago), licensed MIT. It adds 478 tokens to every session, about $0.0024 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
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.
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.