Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add jnPiyush/AgentX --skill pythongit clone --depth 1 https://github.com/jnPiyush/AgentXWrote 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/jnpiyush/agentx/python)<a href="https://agentmods.dev/skills/jnpiyush/agentx/python"><img src="https://agentmods.dev/badge/skills/jnpiyush/agentx/python/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/jnpiyush/agentx/python"><img src="https://agentmods.dev/badge/skills/jnpiyush/agentx/python.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00041 | $0.02176 |
| Opus 5.5 | $0.00016 | $0.00870 |
| Sonnet 5.5 | $0.00008 | $0.00435 |
| Haiku 4.5 | $0.00004 | $0.00218 |
Grade A, and why
python 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.
How it starts
The opening of the file, as written. The whole thing — 301 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Python Development
Purpose: Production-ready Python development standards for building secure, performant, maintainable applications. Audience: Engineers building Python applications, APIs, data pipelines, or AI/ML systems. Standard: Follows github/awesome-copilot Python development patterns.
When to Use This Skill
- Building Python applications or APIs
- Adding type hints to Python code
- Writing async/await patterns in Python
- Testing with pytest
- Structuring Python project layouts
Decision Tree
Python Project Decision
+-- Building a web API?
| +-- High-performance async? -> FastAPI
| +-- Full-featured framework? -> Django + DRF
| +-- Lightweight / microservice? -> Flask
+-- Data processing / ML?
| +-- Data pipelines? -> pandas + polars
| +-- ML models? -> scikit-learn, PyTorch, or transformers
| +-- Notebooks? -> Jupyter + ipykernel
+-- CLI tool?
| +-- Simple? -> argparse (stdlib)
| +-- Complex multi-command? -> click or typer
+-- Async I/O needed?
| +-- HTTP client? -> httpx or aiohttp
| +-- Task queue? -> Celery or asyncio
+-- Package management?
| +-- Modern standard? -> pyproject.toml + poetry or hatch
| +-- Legacy? -> requirements.txt + pip
Prerequisites
- Python 3.14+ installed
- pip or poetry package manager
- pytest for testing
Quick Reference
| Need | Solution | Pattern |
|---|---|---|
| Type hints | Use everywhere | def get_user(id: int) -> Optional[User]: |
| Async code | Use async/await |
async def fetch_data() -> str: |
| Error handling | Specific exceptions | try-except ValueError |
| Testing | pytest | def test_user_creation(): |
| Logging | Standard library | logger.info("User %s created", user_id) |
| Docstrings | Google style | """Gets user by ID.\n\nArgs:\n id: User identifier |
Python Version
Current: Python 3.14+ Minimum: Python 3.9+
Modern Python Features (Use These)
What ships with it
4 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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 5b808e891377
- 1mo ago First seen · 301 lines · 41 tokens per session scan A 57dbbbe243be
python is a skill published in the GitHub repository jnPiyush/AgentX (16 stars, last pushed 3d ago), licensed Apache-2.0. It adds 41 tokens to every session and 2,176 once invoked, about $0.0002 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 2026-09-03.
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