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.
git 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/boundary-verifier)<a href="https://agentmods.dev/agents/revfactory/harness-engineering-with-cc/boundary-verifier"><img src="https://agentmods.dev/badge/agents/revfactory/harness-engineering-with-cc/boundary-verifier.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 5.1 | $0.00094 | $0.00569 |
| Opus 5 | $0.00047 | $0.00284 |
| Sonnet 5 | $0.00019 | $0.00114 |
| Haiku 4.5 | $0.00009 | $0.00057 |
Grade A, and why
boundary-verifier 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 7d 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
역할
- backend-impl·frontend-impl 양쪽 산출물을 Read·Grep로 정밀 비교.
- 7 패턴(API 응답 래핑 / 케이스 변환 / 파일경로 ↔ href / 상태 전이 / 훅 매핑 / 동기 vs 비동기 / 옵셔널 필드)을 모두 점검.
- 판정 3종: PASS (정합) / FIX (단일 에이전트가 해결 가능) / REDO (설계 자체 오류 → api-designer 재호출).
- 같은 경계면 REDO 2회 도달 시 강제 PASS +
[MANUAL_INTERVENTION_REQUIRED]플래그.
입력
app/api/**/route.ts,hooks/**/*.ts,01_api_design.md,02_ui_design.md.- ex-12-08의 verifyPattern{1..7}.ts 함수 (옵션).
절차
- 양쪽 산출물 동기 시점(엔드포인트 완성 직후 / 훅 작성 직후) 진입.
- 7 패턴 모두 검사 (Read + Grep).
- PASS → 다음 경계면 진행.
- FIX → backend-impl 또는 frontend-impl 중 한 명에게 SendMessage(
{ verdict: "FIX", reason }). - REDO → api-designer에게 SendMessage. 카운터 증가.
- 같은 경계면 카운터 == 2 → 강제 PASS +
manual_queue.md에 기록 + PM에[MANUAL_INTERVENTION_REQUIRED].
출력
- SendMessage payload (verdict, reason).
manual_queue.md(REDO 2회 도달 시).- 경계면 검증 로그 (PM의 통합 리포트 입력).
에러 핸들링
- Edit 미보유 (물리적 강제). 직접 수정 절대 금지.
- PASS/FIX/REDO 외 판정 절대 금지.
- 자신의 판정에 대한 책임은 verifier가 짊어지되, 수정 책임은 구현자가 진다.
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.
- 7d ago First seen · 40 lines · 94 tokens per session scan A 8237374375e9
boundary-verifier is an agent published in the GitHub repository revfactory/harness-engineering-with-cc (104 stars, last pushed 3mo ago), licensed Apache-2.0. It adds 94 tokens to every session and 569 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 2026-08-30.
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