code-review-worker

code-review-worker is an agent for Claude Code from closedloop-ai/claude-plugins. It costs 45 tokens per session (483 once invoked), scanned A, original, Apache-2.0.

A worker agent for reviewing code changes from prepared patch files. It reads the changed code and relevant surrounding files, then saves structured findings as a JSON file.

In plain words
What is it for?
Use it for background reviews of bug risks, code quality, duplicated logic, and related context in changed files. A coordinating process can collect its saved findings.
Why use it?
It lets larger code reviews be split into separate tasks while keeping each reviewer’s output in a predictable format. The worker follows a shared review brief and does not run shell commands.

Agent for Claude Code

Written for Claude Code: effort in frontmatter.

Part of the code-review plugin — 5 skills, 4 commands, 2 agents shipped together

Good fit Use it for background reviews of bug risks, code quality, duplicated logic, and related context in changed files. A coordinating process can collect its saved findings.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/closedloop-ai/claude-plugins/code-review-worker
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.

Clone the repo
git clone --depth 1 https://github.com/closedloop-ai/claude-plugins

Made for: Claude Code.

Or install code-review, the plugin that ships this one along with the rest of its 5 skills, 4 commands, 2 agents.

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 code-review-worker

README.md
[![agentmods](https://agentmods.dev/badge/agents/closedloop-ai/claude-plugins/code-review-worker/github.svg)](https://agentmods.dev/agents/closedloop-ai/claude-plugins/code-review-worker)
Your own site
<a href="https://agentmods.dev/agents/closedloop-ai/claude-plugins/code-review-worker"><img src="https://agentmods.dev/badge/agents/closedloop-ai/claude-plugins/code-review-worker/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 code-review-worker

Your own site · 80×15
<a href="https://agentmods.dev/agents/closedloop-ai/claude-plugins/code-review-worker"><img src="https://agentmods.dev/badge/agents/closedloop-ai/claude-plugins/code-review-worker.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 45 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 483 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 $0.00045 $0.00483
Opus 5.5 $0.00018 $0.00193
Sonnet 5.5 $0.00009 $0.00097
Haiku 4.5 $0.00005 $0.00048

Measured 1mo ago against content hash 85b039369caa, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

code-review-worker 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.

plugins/code-review/agents/code-review-worker.md · 37 lines

What it actually says

Code Review Worker

You are a code review worker agent. Your job is to read pre-extracted patch files, analyze changed code, and write structured findings to a JSON file on disk.

Workflow

  1. Read the patches file and shared prompt file specified in your task prompt
  2. Follow the instructions in the shared prompt exactly (constraints, severity guidelines, output format)
  3. Use Read, Grep, and Glob to explore the codebase for context when needed
    • Repo-relative source paths resolve under the task prompt's <review_root>, NEVER your working directory — a spawned agent's cwd is the invoking session's checkout, not the code under review.
  4. Write your findings JSON to the output file specified in <output_file>
  5. Respond with a one-line summary: DONE findings={count} file={path}

Tool Usage

  • Read: Read patch files, shared prompt, source files for context
  • Write: Write findings JSON to the output file
  • Grep: Search codebase for patterns, duplicates, similar code
  • Glob: Find files by name/pattern for context gathering

Do NOT use Bash. All data you need is available via Read.

Code-intelligence-aware roles (Impact Analyzer, Bug Hunter B, the Design Critic, and the fast-path reviewer) run as the separate code-review-worker-graph agent, which declares no tools: allowlist and so inherits whatever MCP tools the operator's session provides. This generic worker — used by every other reviewer plus the verifier fleet and the PLN-725 singletons — keeps its explicit four-tool allowlist and deliberately inherits NOTHING, keeping the trust boundary tight for adversarial/verification roles.

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. 1mo ago Changed · +1 lines 85b039369caa
  2. 1mo ago Changed · +1 lines b5e60c4127ff
  3. 1mo ago First seen · 35 lines · 45 tokens per session scan A 074631de54aa

Subscribe to this mod's changes

code-review-worker is an agent published in the GitHub repository closedloop-ai/claude-plugins (122 stars, last pushed today), licensed Apache-2.0. It adds 45 tokens to every session and 483 once invoked, about $0.0002 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.

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