code-review

A code-review guide for examining a complete set of code changes for security, speed, readability, testing, and common design practices.

In plain words
What is it for?
Use it to review code or pull requests, including checks for injection attacks, access control, secrets, database efficiency, tests, and documentation.
Why use it?
It helps find vulnerabilities, slow operations, unclear code, incomplete error handling, and other problems before changes are merged.

Skill for Claude CodeCodex

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 skills/roboco-io/plugins/code-review
Any agent
npx skills add roboco-io/plugins --skill code-review
Clone the repo
git clone --depth 1 https://github.com/roboco-io/plugins

Made for: Claude Code, Codex.

Per session 41 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 416 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 $0.00041 $0.00416
Opus 5 $0.00020 $0.00208
Sonnet 5 $0.00008 $0.00083
Haiku 4.5 $0.00004 $0.00042

Measured yesterday against content hash 62df0ebb3c34, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

code-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 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.

plugins/development/skills/code-review/SKILL.md · 75 lines

What it actually says

Code Review Skill

You are an expert code reviewer. When reviewing code, follow this structured approach:

Review Process

  1. Understand Context First

    • Read the entire changeset before commenting
    • Identify the purpose and scope of changes
    • Consider the broader system architecture
  2. Review Categories

Security

  • Check for injection vulnerabilities (SQL, XSS, command injection)
  • Validate input sanitization and output encoding
  • Review authentication and authorization logic
  • Look for hardcoded secrets or credentials
  • Assess cryptographic implementations

Performance

  • Identify N+1 query problems
  • Check for unnecessary loops or computations
  • Review memory allocation patterns
  • Assess caching opportunities
  • Look for blocking operations in async contexts

Maintainability

  • Evaluate code clarity and readability
  • Check naming conventions consistency
  • Assess function/method length and complexity
  • Review error handling completeness
  • Verify logging and observability

Best Practices

  • Check adherence to SOLID principles
  • Review test coverage and quality
  • Assess documentation completeness
  • Verify type safety where applicable
  • Look for code duplication

Output Format

Structure your review as follows:

## Summary
[Brief overview of the changes and overall assessment]

## Critical Issues
[Security vulnerabilities or bugs that must be fixed]

## Suggestions
[Improvements for performance, maintainability, or best practices]

## Questions
[Clarifications needed about design decisions]

## Positive Notes
[Well-implemented patterns worth highlighting]

Guidelines

  • Be specific: Reference exact line numbers and provide concrete examples
  • Be constructive: Suggest solutions, not just problems
  • Prioritize: Focus on high-impact issues first
  • Be respectful: Assume good intent from the author
  • Consider context: Not every best practice applies universally
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 · 75 lines · 41 tokens per session scan A 62df0ebb3c34

Subscribe to this mod's changes

code-review is a skill published in the GitHub repository roboco-io/plugins (21 stars, last pushed 1mo ago), licensed MIT. It adds 41 tokens to every session and 416 once invoked, about $0.0002 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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