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 rules/darknessomi/musicbox/pre-commit-validationgit clone --depth 1 https://github.com/darknessomi/musicboxWhat 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 | $0.00185 | $0.00185 |
| Opus 5 | $0.00093 | $0.00093 |
| Sonnet 5 | $0.00037 | $0.00037 |
| Haiku 4.5 | $0.00018 | $0.00018 |
Grade A, and why
pre-commit-validation 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 yesterday.
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
提交前本地验证
每次 git commit 前，必须先在本机跑完与 .github/workflows/ci.yml 等价的检查；任一失败则先修复再提交。
uv run ruff check
uv run ruff format --check # 失败则先 uv run ruff format 再重跑
uv run ty check
uv run pytest -s
格式问题优先用 uv run ruff format 自动修复，不要只改代码却跳过 format。
若已安装 pre-commit hook（uv run pre-commit install），git commit 会自动跑 ruff 与 ty；仍应在提交前手动跑完整 pytest。
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.
- yesterday First seen · 20 lines · 185 tokens per session scan A c8c84fb29ea7
pre-commit-validation is a cursor rule published in the GitHub repository darknessomi/musicbox (9,837 stars, last pushed 5d ago), licensed MIT. It adds 185 tokens to every session, about $0.0009 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 2026-08-30.
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