code-review

A structured review checklist for code changes, including correctness, security, error handling, and edge cases. It is used on staged or committed changes before they are merged or committed.

In plain words
What is it for?
Reviewing pull requests, auditing completed feature branches, and checking your own changes before committing.
Why use it?
A focused review can catch defects, security problems, and missing failure handling before code reaches users. Severity ratings help distinguish urgent findings from lower-priority improvements.

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/drvoss/everything-copilot-cli/code-review
Any agent
npx skills add drvoss/everything-copilot-cli --skill code-review
Clone the repo
git clone --depth 1 https://github.com/drvoss/everything-copilot-cli

Made for: Claude Code, Codex.

Per session 24 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,590 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 $0.00024 $0.01590
Opus 5 $0.00012 $0.00795
Sonnet 5 $0.00005 $0.00318
Haiku 4.5 $0.00002 $0.00159

Measured 2d ago against content hash df0278a64594, 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 2d 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.

skills/development/code-review/SKILL.md · 180 lines

How it starts

The opening of the file, as written. The whole thing — 180 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Code Review

When to Use

  • Reviewing pull requests before merge
  • Auditing code changes after a feature branch is complete
  • Self-reviewing your own changes before committing
  • Investigating code quality concerns raised by teammates

Prerequisites

  • Changes are committed or staged in git
  • Access to the repository and its test suite
  • Understanding of the project's coding standards

Workflow

1. Understand the Scope

# See what files changed
git --no-pager diff --stat main...HEAD

# Get a summary of the diff
git --no-pager diff main...HEAD --shortstat

For PR reviews, use the code-review agent type which is purpose-built for this:

task agent_type: "code-review"
prompt: "Review the staged changes in this repository"

2. Review Checklist

Evaluate each changed file against these categories:

Priority Category What to Check
🔴 Critical Correctness Logic errors, off-by-one, null handling, race conditions
🔴 Critical Security Injection, auth bypass, secret exposure, unsafe deserialization
🟡 Important Error handling Missing try/catch, unhandled promise rejections, error propagation
🟡 Important Edge cases Empty inputs, large inputs, unicode, concurrent access
🟢 Minor Performance N+1 queries, unnecessary re-renders, missing indexes
🟢 Minor Maintainability Dead code, unclear naming, missing types

3. Investigate Suspicious Patterns

# Find TODO/FIXME/HACK left in changed files
git --no-pager diff main...HEAD | Select-String "TODO|FIXME|HACK"

# Check for console.log or debug statements
git --no-pager diff main...HEAD | Select-String "console\.log|debugger|print\("

4. Verify Tests

# Ensure tests exist for changed source files
git --no-pager diff --name-only main...HEAD | Select-String "\.(ts|js|py|go)$"

# Run the test suite
npm test 2>&1 | Select-Object -Last 20

Read the full file on GitHub · 180 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. 2d ago First seen · 180 lines · 24 tokens per session scan A df0278a64594

Subscribe to this mod's changes

code-review is a skill published in the GitHub repository drvoss/everything-copilot-cli (45 stars, last pushed 5d ago), licensed MIT. It adds 24 tokens to every session and 1,590 once invoked, about $0.0001 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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