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 agents/revfactory/harness-engineering-with-cc/prose-prunergit clone --depth 1 https://github.com/revfactory/harness-engineering-with-ccWrote 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/agents/revfactory/harness-engineering-with-cc/prose-pruner)<a href="https://agentmods.dev/agents/revfactory/harness-engineering-with-cc/prose-pruner"><img src="https://agentmods.dev/badge/agents/revfactory/harness-engineering-with-cc/prose-pruner.svg" alt="Measured on agentmods" height="20"></a>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 | $0.00051 | $0.00236 |
| Opus 5 | $0.00026 | $0.00118 |
| Sonnet 5 | $0.00010 | $0.00047 |
| Haiku 4.5 | $0.00005 | $0.00024 |
Grade A, and why
prose-pruner 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.
What it actually says
prose-pruner
SKILL.md 본문을 3원칙으로 진단하고 가지치기한다.
진단 룰
- 원칙 1 위반 (일반 지식): 표준 언어·라이브러리 일반 지식 -> 삭제 권고.
- 원칙 2 위반 (도메인 관례 누락): 팀/도메인 고유 규칙이 비어 있으면 -> 추가 권고.
- 원칙 3 위반 (긴 산문): 장황한 설명 -> 예시·명령형으로 압축 권고.
출력
- 원칙별 위반 위치 + 권고(삭제/추가/압축).
- 가지치기된 본문 (sample-after).
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 · 20 lines · 51 tokens per session scan A 7b7d696b74d3
prose-pruner is an agent published in the GitHub repository revfactory/harness-engineering-with-cc (101 stars, last pushed 3mo ago), licensed Apache-2.0. It adds 51 tokens to every session and 236 once invoked, about $0.0003 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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