Getting it into your agent
It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.
git clone --depth 1 https://github.com/juan294/cc-rpinpx agentmods add skills/juan294/cc-rpi/python-rulesWrote 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/skills/juan294/cc-rpi/python-rules)<a href="https://agentmods.dev/skills/juan294/cc-rpi/python-rules"><img src="https://agentmods.dev/badge/skills/juan294/cc-rpi/python-rules/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/skills/juan294/cc-rpi/python-rules"><img src="https://agentmods.dev/badge/skills/juan294/cc-rpi/python-rules.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 | $0.00030 | $0.00434 |
| Opus 5.5 | $0.00012 | $0.00174 |
| Sonnet 5.5 | $0.00006 | $0.00087 |
| Haiku 4.5 | $0.00003 | $0.00043 |
Grade A, and why
python-rules 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 1mo 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
Python Development
Virtual Environment Runner
Wrong -- bare python3 has no project dependencies:
python3 scripts/run_analysis.py
# ModuleNotFoundError: No module named 'pandas'
Right -- use the project's venv runner:
uv run python scripts/run_analysis.py
# Or: poetry run python scripts/run_analysis.py
# Or: pipenv run python scripts/run_analysis.py
Package-Relative Imports
Wrong -- direct execution breaks relative imports:
python scripts/etl/transform.py
# ModuleNotFoundError: No module named 'scripts.etl.utils'
Right -- use -m for scripts with package imports:
python -m scripts.etl.transform
Python Version for uv
Select the interpreter from the project's .python-version, requires-python,
lockfile, and supported CI matrix. uv honors version requests and project
constraints; it does not simply choose the newest installed Python.
cat .python-version
rg 'requires-python' pyproject.toml
uv python find
uv sync --locked
If no project pin exists, establish a compatible version from dependency
support and the project's CI before using uv python pin <version> or
uv sync --python <version>. Do not overwrite an existing pin with a generic
"stable" version or delete .venv to hide a mismatch. See uv's interpreter
selection rules.
pip on macOS
Wrong -- system pip blocked by PEP 668 on macOS:
pip3 install httpie
# error: externally-managed-environment
Right -- use brew for CLI tools, pipx for Python apps:
brew install httpie
# Or for Python-specific apps:
pipx install httpie
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.
- 1mo ago Changed · +1 lines d3fa772339a9
- 1mo ago First seen · 74 lines · 30 tokens per session scan A 562d92b13b52
python-rules is a skill published in the GitHub repository juan294/cc-rpi (5 stars, last pushed 6d ago), licensed MIT. It adds 30 tokens to every session and 434 once invoked, about $0.0001 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.
Other skills, from other repositories
python-patterns
Python design patterns, best practices, and idiomatic code.
accelerate
Run PyTorch training across GPUs with minimal changes.
jupyter-notebook
Iterative Python via live Jupyter kernel (hamelnb).
detect-framework
Detect Python agent frameworks from code imports and map them to Omnigent executor types. Load when the user has existing agent code to integrate.
migrating-langchain-to-pydantic-ai
Migrate Python LangChain, LangGraph, or Deep Agents applications to Pydantic AI and, when the source uses harness features, Pydantic AI Harness. Use for LangChain agents, chains, LCEL, direct LangGraph graphs, persistence, interrupts, streaming, and createdeepagent projects with planning, filesystem or sandbox…
migrating-vercel-ai-sdk-and-eve-to-pydantic-ai
Migrate TypeScript Vercel AI SDK or Eve applications to Python with Pydantic AI and, only when needed, Pydantic AI Harness. Use when source code imports ai, @ai-sdk/, or eve, or relies on generateText, streamText, ToolLoopAgent, useChat, Eve agents, tools, skills, subagents, approvals, sessions, channels, schedules…