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 darellchua2/opencode-config-template --skill python-packaging-skillgit clone --depth 1 https://github.com/darellchua2/opencode-config-templateWrote 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/darellchua2/opencode-config-template/python-packaging-skill)<a href="https://agentmods.dev/skills/darellchua2/opencode-config-template/python-packaging-skill"><img src="https://agentmods.dev/badge/skills/darellchua2/opencode-config-template/python-packaging-skill.svg" alt="Measured on agentmods" 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 | $0.00033 | $0.04040 |
| Opus 5 | $0.00016 | $0.02020 |
| Sonnet 5 | $0.00007 | $0.00808 |
| Haiku 4.5 | $0.00003 | $0.00404 |
Grade A, and why
python-packaging-skill 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 4d 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 — 552 lines — stays where its author put it; the contents beside it link to each section on GitHub.
What I do
I help you configure Python packaging for both applications and libraries:
- pyproject.toml Standards: Compliant configuration for all build backends
- Project vs Library: Different strategies for deployable apps vs publishable packages
- Poetry: Full dependency management, lock files, virtual environments, publishing
- uv: Ultra-fast modern alternative for dependency resolution and virtual environments
- setuptools: Traditional build backend for maximum compatibility
- Hatch: Modern build backend with environment management
- Dependency Management: Pinning, version ranges, extras, and groups
- Publishing: PyPI, TestPyPI, and private registry workflows
When to use me
Use this skill when:
- Creating a new Python project and choosing a build tool
- Writing or restructuring pyproject.toml
- Deciding between Poetry, uv, setuptools, or hatch
- Setting up dependency groups (dev, test, docs)
- Publishing a library to PyPI
- Configuring entry points and CLI scripts
- Setting up a monorepo with shared Python packages
- Managing virtual environments across a team
- Configuring build and publish CI/CD pipelines
Related Skills
- python-backend-skill: Project scaffolding and app structure (FastAPI/Django/Flask). This skill handles the packaging configuration those projects use.
- python-ruff-linter-skill: Linting configuration often defined in pyproject.toml
- python-pytest-creator-skill: Test configuration often defined in pyproject.toml
- monorepo-management-skill: JS/TS monorepos. This skill covers Python monorepo packaging patterns.
Step 1: Project vs Library
Decision Matrix
| Aspect | Application (Project) | Library (Package) |
|---|---|---|
| Purpose | Deployed service, CLI tool, script | Reusable code published to PyPI |
| Dependencies | Pinned exact versions | Version ranges (minimum compatible) |
| Build | Optional (wheel for Docker) | Required (sdist + wheel) |
| Publish | Internal registry or skip | PyPI or private registry |
| Entry points | Scripts/console_scripts | Optional |
| Version scheme | Often single 0.1.0 or git-based |
Semantic versioning required |
[project] name |
Internal, doesn't need PyPI name | Must be unique on PyPI |
| License | May not need one | Required for PyPI |
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.
- 4d ago First seen · 552 lines · 33 tokens per session scan A b09a1957df0a
python-packaging-skill is a skill published in the GitHub repository darellchua2/opencode-config-template (6 stars, last pushed yesterday), licensed Apache-2.0. It adds 33 tokens to every session and 4,040 once invoked, about $0.0002 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 2026-09-03.
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