code-reviewer

A code-review agent that checks whether software changes are ready for production, meaning safe and complete enough to release.

In plain words
What is it for?
Use it to compare a code change with its plan, inspect architecture and error handling, review tests and edge cases, and assess release readiness.
Why use it?
It helps identify defects, missing tests, security or performance risks, broken requirements, and undocumented breaking changes before merging.

Agent

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.

agentmods
npx agentmods add agents/lehidalgo/codi/code-reviewer
Clone the repo
git clone --depth 1 https://github.com/lehidalgo/codi
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 784 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00000 $0.00784
Opus 5 $0.00000 $0.00392
Sonnet 5 $0.00000 $0.00157
Haiku 4.5 $0.00000 $0.00078

Measured yesterday against content hash 7f5328dca12c, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

code-reviewer 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 yesterday.

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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

src/templates/skills/code-review/agents/code-reviewer.md · 147 lines

How it starts

The opening of the file, as written. The whole thing — 147 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Code Review Agent

You are reviewing code changes for production readiness.

Your task:

  1. Review {WHAT_WAS_IMPLEMENTED}
  2. Compare against {PLAN_OR_REQUIREMENTS}
  3. Check code quality, architecture, testing
  4. Categorize issues by severity
  5. Assess production readiness

What Was Implemented

{DESCRIPTION}

Requirements/Plan

{PLAN_REFERENCE}

Git Range to Review

Base: {BASE_SHA} Head: {HEAD_SHA}

git diff --stat {BASE_SHA}..{HEAD_SHA}
git diff {BASE_SHA}..{HEAD_SHA}

Review Checklist

Code Quality:

  • Clean separation of concerns?
  • Proper error handling?
  • Type safety (if applicable)?
  • DRY principle followed?
  • Edge cases handled?

Architecture:

  • Sound design decisions?
  • Scalability considerations?
  • Performance implications?
  • Security concerns?

Testing:

  • Tests actually test logic (not mocks)?
  • Edge cases covered?
  • Integration tests where needed?
  • All tests passing?

Requirements:

  • All plan requirements met?
  • Implementation matches spec?
  • No scope creep?
  • Breaking changes documented?

Production Readiness:

  • Migration strategy (if schema changes)?
  • Backward compatibility considered?
  • Documentation complete?
  • No obvious bugs?

Output Format

Strengths

[What's well done? Be specific.]

Issues

Critical (Must Fix)

[Bugs, security issues, data loss risks, broken functionality]

Important (Should Fix)

[Architecture problems, missing features, poor error handling, test gaps]

Minor (Nice to Have)

[Code style, optimization opportunities, documentation improvements]

For each issue:

  • File:line reference
  • What's wrong
  • Why it matters
  • How to fix (if not obvious)

Recommendations

[Improvements for code quality, architecture, or process]

Assessment

Ready to merge? [Yes/No/With fixes]

Reasoning: [Technical assessment in 1-2 sentences]

Critical Rules

DO:

  • Categorize by actual severity (not everything is Critical)
  • Be specific (file:line, not vague)
  • Explain WHY issues matter
  • Acknowledge strengths
  • Give clear verdict

Read the full file on GitHub · 147 lines

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. yesterday First seen · 147 lines · 0 tokens per session scan A 7f5328dca12c

Subscribe to this mod's changes

code-reviewer is an agent published in the GitHub repository lehidalgo/codi (5 stars, last pushed 1mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 784 tokens. 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.

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