Borrowing it
Nothing to install: this file belongs to lsiyu241-creator/awesome-claude-cookbook. 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/lsiyu241-creator/awesome-claude-cookbook/main/CLAUDE.mdgit clone --depth 1 https://github.com/lsiyu241-creator/awesome-claude-cookbookWrote 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/lsiyu241-creator/awesome-claude-cookbook/claude-md)<a href="https://agentmods.dev/instructions/lsiyu241-creator/awesome-claude-cookbook/claude-md"><img src="https://agentmods.dev/badge/instructions/lsiyu241-creator/awesome-claude-cookbook/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/lsiyu241-creator/awesome-claude-cookbook/claude-md"><img src="https://agentmods.dev/badge/instructions/lsiyu241-creator/awesome-claude-cookbook/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 | $0.00905 | $0.00905 |
| Opus 5 | $0.00452 | $0.00452 |
| Sonnet 5 | $0.00181 | $0.00181 |
| Haiku 4.5 | $0.00090 | $0.00090 |
Grade A, and why
awesome-claude-cookbook 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 11d 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.
This is a copy
100% identical to claude-cookbooks CLAUDE.md — 13 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 111 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Claude Cookbooks
A collection of Jupyter notebooks and Python examples for building with the Claude API.
Quick Start
# Install dependencies
uv sync --all-extras
# Install pre-commit hooks
uv run pre-commit install
# Set up API key
cp .env.example .env
# Edit .env and add your ANTHROPIC_API_KEY
Development Commands
make format # Format code with ruff
make lint # Run linting
make check # Run format-check + lint
make fix # Auto-fix issues + format
make test # Run pytest
Or directly with uv:
uv run ruff format . # Format
uv run ruff check . # Lint
uv run ruff check --fix . # Auto-fix
uv run pre-commit run --all-files
Code Style
- Line length: 100 characters
- Quotes: Double quotes
- Formatter: Ruff
Notebooks have relaxed rules for mid-file imports (E402), redefinitions (F811), and variable naming (N803, N806).
Git Workflow
Branch naming: <username>/<feature-description>
Commit format (conventional commits):
feat(scope): add new feature
fix(scope): fix bug
docs(scope): update documentation
style: lint/format
Key Rules
-
API Keys: Never commit
.envfiles. Usedotenv.load_dotenv()then access keys viaos.environoros.getenv() -
Dependencies: Use
uv add <package>oruv add --dev <package>. Never edit pyproject.toml directly. -
Models: Use current Claude models. Check docs.anthropic.com for latest versions.
- Sonnet:
claude-sonnet-4-6 - Haiku:
claude-haiku-4-5 - Opus:
claude-opus-4-6 - Never use dated model IDs (e.g.,
claude-sonnet-4-6-20250514). Always use the non-dated alias. - Bedrock model IDs follow a different format. Use the base Bedrock model ID from the docs:
- Opus 4.6:
anthropic.claude-opus-4-6-v1 - Sonnet 4.5:
anthropic.claude-sonnet-4-5-20250929-v1:0 - Haiku 4.5:
anthropic.claude-haiku-4-5-20251001-v1:0 - Prepend
global.for global endpoints (recommended):global.anthropic.claude-opus-4-6-v1 - Note: Bedrock models before Opus 4.6 require dated IDs in their Bedrock model ID.
- Opus 4.6:
- Sonnet:
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.
- 11d ago First seen · 111 lines · 905 tokens per session scan A 53181d9efecf
awesome-claude-cookbook CLAUDE.md is an instructions file published in the GitHub repository lsiyu241-creator/awesome-claude-cookbook (3 stars, last pushed 2mo ago), licensed MIT. It adds 905 tokens to every session, about $0.0045 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to claude-cookbooks CLAUDE.md, differing in 13 lines, and is treated as a copy.
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