Borrowing it
Nothing to install: this file belongs to xiaojiou176-open/notebooklab. 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/xiaojiou176-open/notebooklab/main/CLAUDE.mdgit clone --depth 1 https://github.com/xiaojiou176-open/notebooklabWrote 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/xiaojiou176-open/notebooklab/claude-md)<a href="https://agentmods.dev/instructions/xiaojiou176-open/notebooklab/claude-md"><img src="https://agentmods.dev/badge/instructions/xiaojiou176-open/notebooklab/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/xiaojiou176-open/notebooklab/claude-md"><img src="https://agentmods.dev/badge/instructions/xiaojiou176-open/notebooklab/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 | $0.00400 | $0.00400 |
| Opus 5 | $0.00200 | $0.00200 |
| Sonnet 5 | $0.00080 | $0.00080 |
| Haiku 4.5 | $0.00040 | $0.00040 |
Grade A, and why
notebooklab 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.
What it actually says
Root CLAUDE.md
Internal operator guidance for this fork. Not canonical public collaboration policy; public-facing authority lives in
README.md,CONTRIBUTING.md,SECURITY.md, andSUPPORT.md.
Root navigation guide.
Scope
Use this file to answer three questions quickly:
- where to read next
- what must never be tracked
- which checks are required before claiming a change is safe
Main module routes
- frontend:
apps/web/CLAUDE.md - api:
services/api/CLAUDE.md - core runtime:
packages/core/CLAUDE.md - tests and verification:
tests/CLAUDE.md
Nearest-first rule
Read order is fixed:
- nearest
CLAUDE.md - nearest
AGENTS.md - root
CLAUDE.md - root
AGENTS.md - a targeted file under
docs/
Search-before-write
rg -n "<keyword>" AGENTS.md CLAUDE.md README*.md docs config contracts tooling services packages apps tests ops evals mutants
rg --files -g 'AGENTS.md' -g 'CLAUDE.md' -g 'README*.md'
Keep at least one evidence token in the changed docs, for example README.md:1.
Hard rules
- Keep docs English-only.
- Keep docs minimal.
- Keep runtime, agent, cache, and log directories untracked.
- Prefer repo-local docs and scripts over stale historical notes.
Core commands
bash tooling/scripts/runtime/run_uv_managed.sh sync
cd apps/web && npm ci && cd ../..
bash tooling/scripts/ci/check_env_governance.sh
bash tooling/scripts/ci/check_secret_leaks.sh
bash tooling/scripts/runtime/run_uv_managed.sh run python tooling/scripts/ci/check_navigation_docs_pair.py
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 · 57 lines · 400 tokens per session scan A 2cc1404822f9
notebooklab CLAUDE.md is an instructions file published in the GitHub repository xiaojiou176-open/notebooklab (1 stars, last pushed 15d ago), licensed MIT. It adds 400 tokens to every session, about $0.0020 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.
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.