/code-review

A command that reviews uncommitted code changes for security and quality problems. Uncommitted changes are edits that have not yet been saved in a Git commit.

In plain words
What is it for?
It helps inspect changed files, report issues with severity and locations, suggest fixes, and block approval when critical or high-risk problems are found.
Why use it?
It brings risky issues such as exposed credentials, injection bugs, missing validation, and inadequate tests to attention before the changes are committed.

Command

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 commands/mckruz/claude-code-mastery/code-review
Clone the repo
git clone --depth 1 https://github.com/MCKRUZ/claude-code-mastery
Per session 24 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 290 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 $0.00290
Opus 5 $0.00012 $0.00145
Sonnet 5 $0.00005 $0.00058
Haiku 4.5 $0.00002 $0.00029

Measured 2d ago against content hash 270de5cc240e, 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.

cursor-export/commands/code-review.md · 52 lines

What it actually says

Code Review

Perform a comprehensive security and quality review of uncommitted changes.

Workflow

  1. Get changed files: git diff --name-only HEAD

  2. For each changed file, check for:

Security Issues (CRITICAL)

  • Hardcoded credentials, API keys, tokens
  • SQL injection vulnerabilities
  • XSS vulnerabilities
  • Missing input validation
  • Insecure dependencies
  • Path traversal risks

Code Quality (HIGH)

  • Functions > 50 lines
  • Files > 800 lines
  • Nesting depth > 4 levels
  • Missing error handling
  • console.log statements
  • TODO/FIXME comments
  • Missing JSDoc for public APIs

Best Practices (MEDIUM)

  • Mutation patterns (use immutable instead)
  • Emoji usage in code/comments
  • Missing tests for new code
  • Accessibility issues (a11y)

Output Format

  1. Generate report with:
    • Severity: CRITICAL, HIGH, MEDIUM, LOW
    • File location and line numbers
    • Issue description
    • Suggested fix

Gate

  1. Block commit if CRITICAL or HIGH issues found — list all issues that must be resolved before merging.

Never approve code with security vulnerabilities.

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 · 52 lines · 24 tokens per session scan A 270de5cc240e

Subscribe to this mod's changes

/code-review is a command published in the GitHub repository MCKRUZ/claude-code-mastery (11 stars, last pushed 4mo ago), licensed MIT. It adds 24 tokens to every session and 290 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.