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brat-review

brat-review is a skill for Claude Code, Codex from neul-labs/brat. It costs 23 tokens per session (472 once invoked), scanned A, original, MIT.

A review workflow that compares completed code with its architecture plan and product requirements before it is merged.

In plain words
What is it for?
Use it to assess changed files, test results, interface compliance, acceptance criteria, and whether the work should be approved or revised.
Why use it?
It catches design, testing, or requirement problems and can ask a person to approve risky changes.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

not rated 6repo 4mo ago A scan 23 tokens original MIT

Good fit Use it to assess changed files, test results, interface compliance, acceptance criteria, and whether the work should be approved or revised.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/neul-labs/brat/brat-review
View source ↗ neul-labs/brat brat.neullabs.com
Install

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.

Any agent
npx skills add neul-labs/brat --skill brat-review
Clone the repo
git clone --depth 1 https://github.com/neul-labs/brat

Made for: Claude Code, Codex.

Wrote 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.

agentmods badge for brat-review

README.md
[![agentmods](https://agentmods.dev/badge/skills/neul-labs/brat/brat-review/github.svg)](https://agentmods.dev/skills/neul-labs/brat/brat-review)
Your own site
<a href="https://agentmods.dev/skills/neul-labs/brat/brat-review"><img src="https://agentmods.dev/badge/skills/neul-labs/brat/brat-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.

agentmods 80×15 button for brat-review

Your own site · 80×15
<a href="https://agentmods.dev/skills/neul-labs/brat/brat-review"><img src="https://agentmods.dev/badge/skills/neul-labs/brat/brat-review.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 23 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 472 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00023 $0.00472
Opus 5.5 $0.00009 $0.00189
Sonnet 5.5 $0.00005 $0.00094
Haiku 4.5 $0.00002 $0.00047

Measured 2mo ago against content hash 5e5fbddcb537, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

brat-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 2mo 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.

crates/brat-skills/skills/brat-review/SKILL.md · 69 lines

What it actually says

brat-review Skill

Purpose

Review completed implementation against architecture design and product requirements. Request human approval before merge.

Input Schema (JSON)

{
  "implementation": {
    "component": "string",
    "files_changed": ["string"],
    "diff_summary": "string",
    "tests": {
      "unit": {"passing": "number", "failing": "number"},
      "integration": {"passing": "number", "failing": "number"}
    }
  },
  "architecture": {
    "component": "string",
    "expected_interfaces": ["string"],
    "expected_file_paths": ["string"]
  },
  "product": {
    "requirement_title": "string",
    "acceptance_criteria": ["string"]
  },
  "policy": {
    "require_human_approval": "boolean",
    "required_checks": ["string"]
  }
}

Output Schema (JSON)

{
  "decision": "approve|request_changes|reject|escalate",
  "assessment": {
    "architecture_compliance": "compliant|partial|non_compliant",
    "test_coverage": "adequate|partial|inadequate",
    "acceptance_criteria_met": "all|partial|none"
  },
  "approval_request": {
    "rationale": "string (why this needs human eyes)",
    "artifact_summary": "string (what changed)",
    "risk_level": "low|medium|high",
    "suggested_reviewers": ["string"]
  },
  "required_changes": ["string (if decision=request_changes)"],
  "reason": "string"
}

Guardrails

  • If require_human_approval is true, ALWAYS request approval before merge
  • Check architecture compliance before approval
  • Check all acceptance criteria are met
  • Tests must be passing (zero failures)
  • On rejection, provide specific required changes
  • Post review assessment as structured comment
  • NEVER merge without approval when policy requires it
Changes

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.

  1. 2mo ago First seen · 69 lines · 0 tokens per session scan A 5e5fbddcb537

Subscribe to this mod's changes

brat-review is a skill published in the GitHub repository neul-labs/brat (6 stars, last pushed 4mo ago), licensed MIT. It adds 23 tokens to every session and 472 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 2026-08-31.

Claude CodeCode reviewPlanning[brat, review, merge, approval]agent-swarmai-agentsautomationopencode
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