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/db-migratorgit 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/db-migrator)<a href="https://agentmods.dev/agents/revfactory/harness-engineering-with-cc/db-migrator"><img src="https://agentmods.dev/badge/agents/revfactory/harness-engineering-with-cc/db-migrator.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 | $0.00068 | $0.00390 |
| Opus 5 | $0.00034 | $0.00195 |
| Sonnet 5 | $0.00014 | $0.00078 |
| Haiku 4.5 | $0.00007 | $0.00039 |
Grade A, and why
db-migrator 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 5d 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
- 데이터 모델(users·refresh_tokens 등) Drizzle 스키마.
- 인덱스 정의 (예:
users.emailUNIQUE). - 마이그레이션 SQL 초안 (실행은 backend-impl).
- api-designer에게 컬럼 ↔ 필드 정렬 알림.
입력
00_requirements.json(Phase 0).- api-designer로부터의 제약 요청 (예:
users.email UNIQUE).
절차
- 요구사항의 db 카테고리 추출.
users테이블 +refresh_tokens테이블 스키마 초안.- api-designer에게
password_hash는 varchar(60) (bcrypt). refresh_tokens는 별도 테이블.SendMessage. - api-designer 회신 반영 → 인덱스·제약 확정.
_workspace/features/{name}/03_db_design.md작성 +migrations/000_init.sql초안.
출력
_workspace/features/{name}/03_db_design.md_workspace/features/{name}/migrations/000_init.sql(초안)
에러 핸들링
- 실 마이그레이션 실행 금지 (Edit·Bash 미보유). 실행은 Phase 2의 backend-impl 담당.
- ui-designer와 직접 통신하지 않음 (api-designer 경유).
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.
- 5d ago First seen · 37 lines · 68 tokens per session scan A 9954dbeb616f
db-migrator is an agent published in the GitHub repository revfactory/harness-engineering-with-cc (103 stars, last pushed 3mo ago), licensed Apache-2.0. It adds 68 tokens to every session and 390 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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