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 agentmods add skills/meaningfy-ws/skillery/cosmic-pythonnpx skills add meaningfy-ws/skillery --skill cosmic-pythongit clone --depth 1 https://github.com/meaningfy-ws/skilleryWhat 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 | $0.00095 | $0.04956 |
| Opus 5 | $0.00048 | $0.02478 |
| Sonnet 5 | $0.00019 | $0.00991 |
| Haiku 4.5 | $0.00010 | $0.00496 |
Grade A, and why
cosmic-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 2d 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.
The source is not reproduced here
Licensed GPL-3.0
The repository is licensed GPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.
What ships with it
8 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.
- references/example-adapters-layer.md 11 KB
- references/example-advanced-patterns.md 18 KB
- references/example-entrypoints-layer.md 13 KB
- references/example-models-layer.md 5.6 KB
- references/example-project-quality-ci.md 14 KB
- references/example-services-layer.md 13 KB
- references/example-testing-patterns.md 17 KB
- references/principles-and-anti-patterns.md 8.4 KB
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.
- 2d ago First seen · 405 lines · 95 tokens per session scan A 3ce75227c1fd
cosmic-python is a skill published in the GitHub repository meaningfy-ws/skillery (2 stars, last pushed 1mo ago), licensed GPL-3.0. It adds 95 tokens to every session and 4,956 once invoked, about $0.0005 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 2026-08-31.
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