Borrowing it
Nothing to install: this file belongs to jiatastic/open-python-skills. 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/jiatastic/open-python-skills/main/AGENTS.mdgit clone --depth 1 https://github.com/jiatastic/open-python-skillsWrote 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/jiatastic/open-python-skills/agents-md)<a href="https://agentmods.dev/instructions/jiatastic/open-python-skills/agents-md"><img src="https://agentmods.dev/badge/instructions/jiatastic/open-python-skills/agents-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/jiatastic/open-python-skills/agents-md"><img src="https://agentmods.dev/badge/instructions/jiatastic/open-python-skills/agents-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 | $0.00348 | $0.00348 |
| Opus 5.5 | $0.00139 | $0.00139 |
| Sonnet 5.5 | $0.00070 | $0.00070 |
| Haiku 4.5 | $0.00035 | $0.00035 |
Grade A, and why
open-python-skills AGENTS.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
PROJECT KNOWLEDGE BASE
OVERVIEW
A collection of AI-ready skill bundles for Python development.
STRUCTURE
open_python_skills/
├── python-backend/ # FastAPI, SQLAlchemy, Redis patterns
├── commit-message/ # Git commit message generation
├── excalidraw-ai/ # Diagram generation
├── ty-skills/ # Python type checking with ty
├── unit-testing/ # pytest patterns
├── docker-builder/ # Dockerfile generation
├── web-scraping/ # Scraping patterns
├── api-testing/ # API testing with schemathesis
├── linting/ # Ruff linting
├── formatting/ # Code formatting
├── observability/ # OpenTelemetry + Logfire
├── error-handling/ # Error handling patterns
├── marimo-notebook/ # Marimo notebooks
└── pydantic/ # Pydantic validation
WHERE TO LOOK
| Task | Location |
|---|---|
| Skill catalog | open_python_skills/*/SKILL.md |
| Reference docs | open_python_skills/*/references/*.md |
| Data files | open_python_skills/*/data/*.json |
| Scripts | open_python_skills/*/scripts/*.py |
CONVENTIONS
- Each skill has a
SKILL.mdwith front-matter metadata - Reference docs live in
references/subdirectory - JSON data lives in
data/subdirectory - Excalidraw libraries live in
assets/subdirectory
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 · 42 lines · 348 tokens per session scan A 3a7997037fb7
open-python-skills AGENTS.md is an instructions file published in the GitHub repository jiatastic/open-python-skills (10 stars, last pushed 9mo ago), licensed MIT. It adds 348 tokens to every session, about $0.0014 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.
open-python-skills AGENTS.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| open-python-skills AGENTS.mdjiatastic/open-python-skills | Instructions file | 10 | 9mo ago | MIT | A | 348 | Codex, OpenCode |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 9,719 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | yesterday | MIT | A | 7,461 | Codex, OpenCode |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | yesterday | MIT | A | 4,680 | Codex, OpenCode |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 5,516 | GitHub Copilot |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 3,093 | GitHub Copilot |
| deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness | Instructions file | 274k | 2d ago | MIT | A | 4,313 | Codex, OpenCode |