m-review-code

A code-review command for examining recent changes, system design, security, completeness, code quality, and tests.

In plain words
What is it for?
Use it to review commits or other code changes, check authentication and tenant isolation, assess requirements and error handling, and identify runtime or testing risks.
Why use it?
It helps find problems that may be missed when checking only whether the code runs, including access-control issues, missing edge cases, duplicated logic, and weak test coverage.

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/penwyp/claudepreference/m-review-code
Clone the repo
git clone --depth 1 https://github.com/penwyp/ClaudePreference
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 760 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 $0.00760
Opus 5 $0.00000 $0.00380
Sonnet 5 $0.00000 $0.00152
Haiku 4.5 $0.00000 $0.00076

Measured 2d ago against content hash 7685d825ad14, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

m-review-code 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.

commands/m-review-code.md · 112 lines

How it starts

The opening of the file, as written. The whole thing — 112 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Code Review Workflow: Comprehensive Analysis & Report Generation

Target: $ARGUMENTS (Default: latest commits of current branch)

Scope: Analyze code changes, architecture patterns, and implementation quality

Execution Steps

  1. Architecture & Pattern Analysis

    • Review repository patterns, service layers, and migration strategies
    • Assess system design decisions and structural changes
  2. Security & Multi-tenant Validation

    • Check authentication, authorization, and tenant isolation
    • Identify potential security vulnerabilities and access control issues
  3. Functional Completeness Verification

    • Ensure all requirements are implemented with proper edge case handling
    • Validate input validation, error handling, and boundary conditions
  4. Code Quality Assessment

    • Identify code smells, anti-patterns, and duplicated logic
    • Detect potential runtime issues: race conditions, memory leaks, null pointer exceptions
  5. Test Coverage Evaluation

    • Assess unit and integration test coverage gaps
    • Review test quality and edge case coverage
  6. Third-party Library Opportunities

    • Suggest robust external libraries for current implementations
    • Identify opportunities to reduce custom code complexity
  7. Generate Bilingual Report

    • Compile findings into structured markdown format
    • Save to docs/workspaces/review-MM-dd-HH-mm-ss.md

Output Format

English Report

Present findings in the following sections:

functionalCompleteness
  • Requirements implementation status
  • Edge case handling assessment
  • Missing functionality identification
criticalBugs
  • Potential crashes, panics, or system failures
  • Security vulnerabilities and data exposure risks
  • Performance bottlenecks and resource leaks
badSmells
  • Code anti-patterns and design issues
  • Duplicated or overly complex logic
  • Maintainability concerns
thirdPartyOpportunities
  • External library suggestions for current implementations
  • Benefits and integration considerations
  • Risk assessment for library adoption

Read the full file on GitHub · 112 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 · 112 lines · 0 tokens per session scan A 7685d825ad14

Subscribe to this mod's changes

m-review-code is a command published in the GitHub repository penwyp/ClaudePreference (137 stars, last pushed 3mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 760 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 2026-08-30.