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 requirement-feature-mappinggit 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/requirement-feature-mapping)<a href="https://agentmods.dev/skills/protect-my-hair/nucleus-marketplace/requirement-feature-mapping"><img src="https://agentmods.dev/badge/skills/protect-my-hair/nucleus-marketplace/requirement-feature-mapping/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/requirement-feature-mapping"><img src="https://agentmods.dev/badge/skills/protect-my-hair/nucleus-marketplace/requirement-feature-mapping.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 | $0.00021 | $0.00383 |
| Opus 5 | $0.00010 | $0.00192 |
| Sonnet 5 | $0.00004 | $0.00077 |
| Haiku 4.5 | $0.00002 | $0.00038 |
Grade A, and why
requirement-feature-mapping 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
Requirement Feature Mapping
Use this Skill when a coding agent must understand a requirement and propose how it maps to product features.
Boundary
- Read the explicit context package from
.nucleus/context/<workflowRunId>.json. - In
pms-drivenmode, read only declareddocs/requirement/**artifacts withreadPolicy=read-only. - In
standalone-assistantmode, require an explicit local problem statement in context. - Scan existing
docs/features/**/feature.mdfiles as product feature candidates. - Write only candidate evidence under
.nucleus/runs/<workflowRunId>/. - Return
NEEDS_HUMAN_REVIEWwhen the mapping candidate is generated. - Return
FAILED_BLOCKEDfor missing inputs, protected writes, legacy paths, path escape, or schema failures.
This Skill does not write docs/features/**, does not write docs/requirement/**, and does not create tasks, commits, pushes, PRs, releases, or defect state changes.
人审前预审
请求 mapping-candidate-review 人工评审前，必须先按 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，不得请求人工批准映射。
Runtime
python3 skills/requirement-feature-mapping/scripts/requirement_feature_mapping.py map \
--repo-root <target-repo> \
--context <target-repo>/.nucleus/context/<workflowRunId>.json
The runtime imports only packaged Skill assets and skills/_shared/nucleus_runtime/; it does not import root harness/ or root scripts/.
What ships with it
6 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 597 B
- assets/nucleus-requirement-feature-mapping-candidate.schema.json 4.6 KB
- assets/requirement-feature-mapping-candidate-template.json 204 B
- assets/requirement-feature-mapping-candidate-template.md 318 B
- references/mapping-boundary.md 440 B
- scripts/requirement_feature_mapping.py 20 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 · 35 lines · 21 tokens per session scan A 8b78de97b60c
requirement-feature-mapping is a skill published in the GitHub repository protect-my-hair/nucleus-marketplace (162 stars, last pushed 1mo ago), licensed MIT. It adds 21 tokens to every session and 383 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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