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 ezBuilder/code-brain --skill lean-reviewgit clone --depth 1 https://github.com/ezBuilder/code-brainWrote 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/ezbuilder/code-brain/lean-review)<a href="https://agentmods.dev/skills/ezbuilder/code-brain/lean-review"><img src="https://agentmods.dev/badge/skills/ezbuilder/code-brain/lean-review/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/ezbuilder/code-brain/lean-review"><img src="https://agentmods.dev/badge/skills/ezbuilder/code-brain/lean-review.svg" alt="Reviewed on agentmods" width="80" 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 | $0.00022 | $0.00344 |
| Opus 5.5 | $0.00009 | $0.00138 |
| Sonnet 5.5 | $0.00004 | $0.00069 |
| Haiku 4.5 | $0.00002 | $0.00034 |
Grade A, and why
lean-review 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 1mo 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
현재 diff나 지정 범위를 correctness/security가 아니라 과설계 관점으로만 검토한다.
찾을 항목:
delete: 죽은 코드, 투기적 기능, 사용되지 않는 유연성stdlib: 표준 라이브러리로 대체 가능한 직접 구현native: 플랫폼/DB/CSS/브라우저 기본 기능으로 대체 가능한 코드나 의존성yagni: 구현체 하나뿐인 abstraction/factory/wrapper, 설정값 하나뿐인 configshrink: 같은 동작을 더 짧게 표현할 수 있는 코드
보고 형식:
<file>:L<line>: <delete|stdlib|native|yagni|shrink>: <cut>. <replacement>.
끝에 net: -<N> lines possible.을 적는다. 줄일 것이 없으면 Lean already. Ship.만 적는다.
범위:
- 수정하지 않고 보고만 한다.
- correctness, security, performance 이슈는 일반
code-review로 넘긴다. - 최소 smoke/self-check는 과설계로 보지 않는다.
KEEP(과설계로 보지 않는다 — 삭제 후보로 올리지 말 것):
- 경계 입력 검증, I/O·외부호출 예외 처리, 데이터 손실/유실 방지 코드
- 비자명한 이유를 설명하는 WHY 주석
- 접근성·보안·검증 로직, 명시적 요구사항
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.
- 1mo ago First seen · 33 lines · 22 tokens per session scan A b1fe56b63cd7
lean-review is a skill published in the GitHub repository ezBuilder/code-brain (11 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 22 tokens to every session and 344 once invoked, about $0.0001 per session on Opus 5.5. 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.
Other skills, from other repositories
strict-reviewer
Use when reviewing a diff, PR, or set of changes — your own or someone else's. Applies a severe-senior-engineer review checklist (root cause vs. symptom, unrequested abstractions, missing tests/checks, unverified claims) instead of a superficial pass.
tuicr
Use tuicr's review CLI to read and add comments in active TUI review sessions, and launch tuicr in cmux, tmux, Zellij, or Herdr when a user needs an interactive review pane.
liveagent-code-review
Review an open GitHub pull request or the current local branch and working tree with parallel, independent reviewers and evidence-based validation. Use when the user asks for code review, invokes the Code Review action from Git Review, or explicitly mentions this skill.
omh-image-cards
This is an OMH img-summary workflow skill, projected for Agent Skills hosts (Claude Code, Codex, Cursor, opencode, OpenClaw, pi).
omh-verification-gate
This is an OMH verification-gate workflow skill, projected for Agent Skills hosts (Claude Code, Codex, Cursor, opencode, OpenClaw, pi).
omh-code-review
This is an OMH code-review workflow skill, projected for Agent Skills hosts (Claude Code, Codex, Cursor, opencode, OpenClaw, pi).