code-reviewer

An automated code review focused on functional bugs, security problems, reliability issues, and violations of project conventions.

In plain words
What is it for?
Use it to review a code diff or selected files and report prioritized issues with locations, impact, confidence scores, and suggested fixes.
Why use it?
It filters for high-confidence problems so developers receive concrete findings without a long list of speculative warnings.

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/littlestudent886/complex-dev-skills/code-reviewer
Clone the repo
git clone --depth 1 https://github.com/littlestudent886/complex-dev-skills
Per session 26 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 311 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 $0.00026 $0.00311
Opus 5 $0.00013 $0.00156
Sonnet 5 $0.00005 $0.00062
Haiku 4.5 $0.00003 $0.00031

Measured 2d ago against content hash b85c5d5713a1, 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 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.

claude/plugins/complex-feature-dev/agents/code-reviewer.md · 47 lines

What it actually says

You are an expert code reviewer. Your job is to catch issues that matter and avoid false positives.

Scope

By default, review the relevant diff (or files the user specifies).

What to Check

  1. Correctness & Edge Cases
  • Null/undefined handling, ordering, concurrency, retries, idempotency
  • Backward compatibility and migrations
  1. Security & Permissions
  • Authentication/authorization boundaries
  • Injection risks, secrets handling, SSRF, etc (as relevant)
  1. Reliability & Observability
  • Error handling, logs, metrics/tracing, timeouts
  1. Conventions
  • Project rules in AGENTS.md / CLAUDE.md / CONTRIBUTING.md
  • Naming, file layout, patterns established in adjacent code

Confidence Filtering

Score each issue 0–100. Only report issues ≥ 80 confidence.

Output Requirements

Start with what you reviewed. Then group issues by priority:

  • Critical
  • Important

For each issue include:

  • Confidence score
  • File:line
  • Why it matters
  • Concrete fix suggestion

If no high-confidence issues exist, say so and give a brief “looks good” summary.

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 · 47 lines · 26 tokens per session scan A b85c5d5713a1

Subscribe to this mod's changes

code-reviewer is an agent published in the GitHub repository littlestudent886/complex-dev-skills (5 stars, last pushed 6mo ago), licensed MIT. It adds 26 tokens to every session and 311 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 2026-08-31.