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 protect-my-hair/nucleus-marketplace --skill worktree-provider-guardgit clone --depth 1 https://github.com/protect-my-hair/nucleus-marketplaceWrote 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/protect-my-hair/nucleus-marketplace/worktree-provider-guard)<a href="https://agentmods.dev/skills/protect-my-hair/nucleus-marketplace/worktree-provider-guard"><img src="https://agentmods.dev/badge/skills/protect-my-hair/nucleus-marketplace/worktree-provider-guard/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/protect-my-hair/nucleus-marketplace/worktree-provider-guard"><img src="https://agentmods.dev/badge/skills/protect-my-hair/nucleus-marketplace/worktree-provider-guard.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 | $0.00025 | $0.00293 |
| Opus 5 | $0.00013 | $0.00147 |
| Sonnet 5 | $0.00005 | $0.00059 |
| Haiku 4.5 | $0.00003 | $0.00029 |
Grade A, and why
worktree-provider-guard 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 12d 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
Worktree Provider Guard
在任何会写 docs/features/**、tests/**、源码或混合路径的 Nucleus workflow 前运行。
该 Skill 只读检查 git/worktree/status/provider/session evidence，只把 guard report、provider health report 和 result package 写入 .nucleus/runs/<workflowRunId>/**。它不创建 worktree、不切分支、不 stash/reset/clean、不修改 provider 配置。
人审前子代理预审
到达 guard-human-review 前，必须按 workflow 的 subagentPreReview 调度独立 reviewer 子代理；未取得“材料可提交人工审查”预审结论时，不得请求人工评审通过。
最小命令：
python3 skills/worktree-provider-guard/scripts/worktree_provider_guard.py check \
--repo-root <target-repo> \
--context <context-json> \
--write-intent auto
Provider health 只接受同 run 的结构化 evidence：session-binding-report、codex-hook-json、claude-hook-json、pms-connector、adapter-health。approved-write 不把 doctor.py --host all stdout 当 provider health。
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.
- agents/openai.yaml 184 B
- assets/nucleus-provider-health-report.schema.json 4.7 KB
- assets/nucleus-worktree-provider-guard-report.schema.json 6.0 KB
- assets/worktree-provider-guard-report-template.md 105 B
- references/blocker-matrix.md 477 B
- references/boundary.md 454 B
- references/provider-health-evidence.md 324 B
- scripts/worktree_provider_guard.py 17 KB runs code
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.
- 12d ago First seen · 26 lines · 25 tokens per session scan A 5accb17d0baa
worktree-provider-guard is a skill published in the GitHub repository protect-my-hair/nucleus-marketplace (162 stars, last pushed 1mo ago), licensed MIT. It adds 25 tokens to every session and 293 once invoked, about $0.0001 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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