Borrowing it
Nothing to install: this file belongs to bendrucker/claude-code-agents-md. 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/bendrucker/claude-code-agents-md/main/CLAUDE.mdgit clone --depth 1 https://github.com/bendrucker/claude-code-agents-mdWrote 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/bendrucker/claude-code-agents-md/claude-md)<a href="https://agentmods.dev/instructions/bendrucker/claude-code-agents-md/claude-md"><img src="https://agentmods.dev/badge/instructions/bendrucker/claude-code-agents-md/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/bendrucker/claude-code-agents-md/claude-md"><img src="https://agentmods.dev/badge/instructions/bendrucker/claude-code-agents-md/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 | $0.00241 | $0.00241 |
| Opus 5.5 | $0.00096 | $0.00096 |
| Sonnet 5.5 | $0.00048 | $0.00048 |
| Haiku 4.5 | $0.00024 | $0.00024 |
Grade A, and why
claude-code-agents-md 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 2mo 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-code-agents-md
Claude Code plugin that loads AGENTS.md files using hooks.
Architecture
Hooks
Always use JSON Output mode. Use hookSpecificOutput.additionalContext to inject AGENTS.md content into Claude Code sessions.
SessionStart
- Injects root
AGENTS.mdcontent at session start - Uses
startup,clear, andcompactmatchers
PostToolUse (Read)
- Walks upwards from path to project root, injecting the closest
AGENTS.md - Tracks files already injected to avoid context duplication
The closest AGENTS.md to the edited file wins; explicit user chat prompts override everything.
Development
Plugin Structure
hook.ts: Hook script that finds and readsAGENTS.md- Use only eraseable TypeScript syntax to allow execution via
node
- Use only eraseable TypeScript syntax to allow execution via
hooks/hooks.json: Hook registration.claude-plugin/plugin.json: Plugin manifest
References
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.
- 2mo ago First seen · 36 lines · 241 tokens per session scan A 751e23b035ef
claude-code-agents-md CLAUDE.md is an instructions file published in the GitHub repository bendrucker/claude-code-agents-md (6 stars, last pushed 1mo ago), licensed MIT. It adds 241 tokens to every session, about $0.0010 per session on Opus 5.5. 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.
claude-code-agents-md CLAUDE.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| claude-code-agents-md CLAUDE.mdbendrucker/claude-code-agents-md | Instructions file | 6 | 1mo ago | MIT | A | 241 | Claude Code |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 9,719 | GitHub Copilot |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 5,516 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | today | MIT | A | 7,461 | Codex, OpenCode |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | today | MIT | A | 4,680 | Codex, OpenCode |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 3,093 | GitHub Copilot |
| vscode model-prompts.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 2,022 | GitHub Copilot |