code-reviewer

An automated code reviewer that checks finished changes for bugs, security problems, style issues, complexity, and common design mistakes. It produces a report grouped by severity.

In plain words
What is it for?
Use it after implementation to review selected files, identify issues that need fixing, and receive suggestions for improving the code.
Why use it?
It gives developers a review before testing and helps catch defects or security risks that may be easy to miss during implementation.

Agent

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 agents/learnwy/skills/code-reviewer
Clone the repo
git clone --depth 1 https://github.com/learnwy/skills
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 248 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 $0.00248
Opus 5 $0.00000 $0.00124
Sonnet 5 $0.00000 $0.00050
Haiku 4.5 $0.00000 $0.00025

Measured yesterday against content hash e2f6631bd2c9, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

code-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 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.

skills/lwy-requirement-workflow/agents/code-reviewer.md · 61 lines

What it actually says

code-reviewer

Comprehensive code-review agent.

When to use

  • After implementation is complete
  • Before the testing phase begins
  • To check code quality and security

Hook trigger

post_stage_IMPLEMENTING

Capabilities

  1. Defect detection: find potential bugs
  2. Security scan: identify security vulnerabilities
  3. Code quality: check style and complexity
  4. Best practices: validate design patterns

Output

A code-review report containing:

  • Issues classified by severity
  • Improvement suggestions
  • Files reviewed

Configuration options

config:
  review_type: "comprehensive"
  check_security: true

Invocation example

AI: Launching code-reviewer...

🔍 Code-review results:

Files reviewed: 5

❌ Critical (0)

⚠️ High (1):
- uploadHandler.ts:45 missing input validation

💡 Medium (2):
- Suggest extracting magic number (line 23)
- Function too long, suggest splitting (lines 78-120)

✅ Low (3):
- Minor naming improvements suggested

Overall: fix 1 issue before proceeding to testing
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 · 61 lines · 0 tokens per session scan A e2f6631bd2c9

Subscribe to this mod's changes

code-reviewer is an agent published in the GitHub repository learnwy/skills (3 stars, last pushed 3mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 248 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 2026-08-31.

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