reviewer

reviewer is a command for Claude Code from spencermarx/open-code-review. It costs 0 tokens per session (274 once invoked), scanned A, a copy of reviewer, Apache-2.0.

A code-review mode that examines many files for correctness, security, performance, tests, documentation, dependencies, and maintainability.

In plain words
What is it for?
Use it to review pull requests, check coding patterns and error handling, inspect test coverage, and produce a review report.
Why use it?
It helps spot problems and inconsistencies that are easy to miss when reviewing a large change file by file.

Command for Claude Code

Written for Claude Code: installed under .claude/. Also seen: mentions Claude Code.

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/spencermarx/open-code-review/reviewer
Clone the repo
git clone --depth 1 https://github.com/spencermarx/open-code-review

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for reviewer

README.md
[![agentmods](https://agentmods.dev/badge/commands/spencermarx/open-code-review/reviewer.svg)](https://agentmods.dev/commands/spencermarx/open-code-review/reviewer)
Your own site
<a href="https://agentmods.dev/commands/spencermarx/open-code-review/reviewer"><img src="https://agentmods.dev/badge/commands/spencermarx/open-code-review/reviewer.svg" alt="Measured on agentmods" height="20"></a>
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 274 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 100% copy Near-identical to another mod 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 5.1 $0.00000 $0.00274
Opus 5 $0.00000 $0.00137
Sonnet 5 $0.00000 $0.00055
Haiku 4.5 $0.00000 $0.00027

Measured 3d ago against content hash f81d581bc6ce, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

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 3d 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.

Origin

This is a copy

100% identical to reviewer — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.claude/commands/sparc/reviewer.md · 55 lines

What it actually says

SPARC Reviewer Mode

Purpose

Code review using batch file analysis for comprehensive reviews.

Activation

Option 1: Using MCP Tools (Preferred in Claude Code)

mcp__claude-flow__sparc_mode {
  mode: "reviewer",
  task_description: "review pull request #123",
  options: {
    security_check: true,
    performance_check: true
  }
}

Option 2: Using NPX CLI (Fallback when MCP not available)

# Use when running from terminal or MCP tools unavailable
npx claude-flow sparc run reviewer "review pull request #123"

# For alpha features
npx claude-flow@alpha sparc run reviewer "review pull request #123"

Option 3: Local Installation

# If claude-flow is installed locally
./claude-flow sparc run reviewer "review pull request #123"

Core Capabilities

  • Code quality assessment
  • Security review
  • Performance analysis
  • Best practices check
  • Documentation review

Review Criteria

  • Code correctness
  • Design patterns
  • Error handling
  • Test coverage
  • Maintainability

Batch Analysis

  • Parallel file review
  • Pattern detection
  • Dependency checking
  • Consistency validation
  • Automated reporting
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. 3d ago First seen · 55 lines · 0 tokens per session scan A f81d581bc6ce

Subscribe to this mod's changes

reviewer is a command published in the GitHub repository spencermarx/open-code-review (355 stars, last pushed 1mo ago), licensed Apache-2.0. It costs nothing until one of its globs matches a file; then it loads 274 tokens. A static security scan graded it A with 0 findings. It is 100% identical to reviewer, differing in 0 lines, and is treated as a copy.