code-review-patterns

code-review-patterns is a skill for Claude Code, Codex from a5c-ai/babysitter. It costs 33 tokens per session (405 once invoked), scanned A, original, MIT.

A code-review checklist that examines security, code quality, speed, and ease of maintenance, then reports only findings it rates as highly certain.

In plain words
What is it for?
Use it during code reviews, debugging, or a full review to check for injection flaws, weak access controls, leaked secrets, inefficient queries, memory leaks, missing error handling, and maintenance problems.
Why use it?
It helps reviewers focus on likely problems instead of sorting through vague warnings. Each issue includes a severity and a suggested fix.

Skill for Claude CodeCodex

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 skills/a5c-ai/babysitter/code-review-patterns
Any agent
npx skills add a5c-ai/babysitter --skill code-review-patterns
Clone the repo
git clone --depth 1 https://github.com/a5c-ai/babysitter

Made for: Claude Code, Codex.

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 code-review-patterns

README.md
[![agentmods](https://agentmods.dev/badge/skills/a5c-ai/babysitter/code-review-patterns.svg)](https://agentmods.dev/skills/a5c-ai/babysitter/code-review-patterns)
Your own site
<a href="https://agentmods.dev/skills/a5c-ai/babysitter/code-review-patterns"><img src="https://agentmods.dev/badge/skills/a5c-ai/babysitter/code-review-patterns.svg" alt="Measured on agentmods" height="20"></a>
Per session 33 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 405 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 $0.00033 $0.00405
Opus 5 $0.00016 $0.00202
Sonnet 5 $0.00007 $0.00081
Haiku 4.5 $0.00003 $0.00040

Measured 4d ago against content hash d646e1472fe4, 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-patterns 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 4d 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.

library/methodologies/cc10x/skills/code-review-patterns/SKILL.md · 57 lines

What it actually says

  • Injection vulnerabilities (SQL, XSS, command)
  • Authentication and authorization patterns
  • Secrets handling (no hardcoded credentials)
  • Input validation and sanitization

Quality (weight: 25%)

  • Naming conventions and consistency
  • Code structure (SRP, cohesion, coupling)
  • Error handling completeness
  • Type safety (no any escapes)

Performance (weight: 20%)

  • Algorithmic complexity (flag O(n^2) or worse)
  • Resource and memory leaks
  • Database query efficiency (N+1)
  • Caching opportunities

Maintainability (weight: 25%)

  • Documentation (JSDoc/TSDoc for public APIs)
  • Test coverage adequacy
  • Readability (function length, nesting depth)
  • Tech debt markers (TODO, FIXME)

Confidence Gating

  • Only report issues with confidence >= 80%
  • Empty catch blocks are always critical (100% confidence)
  • Classify: critical, high, medium, low
  • Include actionable remediation for each issue

Router Contract

Every review must produce: STATUS, BLOCKING, REQUIRES_REMEDIATION, issue counts.

When to Use

  • Code review step in BUILD workflow
  • Fix review in DEBUG workflow
  • Full REVIEW workflow

Agents Used

  • code-reviewer (primary consumer)
  • silent-failure-hunter (error handling dimension)
Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 4d ago First seen · 57 lines · 33 tokens per session scan A d646e1472fe4

Subscribe to this mod's changes

code-review-patterns is a skill published in the GitHub repository a5c-ai/babysitter (1,765 stars, last pushed today), licensed MIT. It adds 33 tokens to every session and 405 once invoked, about $0.0002 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.

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