code-review

code-review is a skill for Claude Code, Codex from botlearn-ai/botlearn-skills. It costs 2 tokens per session (539 once invoked), scanned A, original, MIT.

A code-review assistant that examines source code for security, performance, reliability, and maintainability problems.

In plain words
What is it for?
Use it to find code smells, OWASP Top 10 security risks, inefficient database or memory use, concurrency problems such as race conditions, and concrete fixes ranked by severity.
Why use it?
It helps surface defects that may be easy to miss during ordinary review and explains which issues deserve the most attention.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to find code smells, OWASP Top 10 security risks, inefficient database or memory use, concurrency problems such as race conditions, and concrete fixes ranked by severity.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/botlearn-ai/botlearn-skills/code-review
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.

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

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

README.md
[![agentmods](https://agentmods.dev/badge/skills/botlearn-ai/botlearn-skills/code-review/github.svg)](https://agentmods.dev/skills/botlearn-ai/botlearn-skills/code-review)
Your own site
<a href="https://agentmods.dev/skills/botlearn-ai/botlearn-skills/code-review"><img src="https://agentmods.dev/badge/skills/botlearn-ai/botlearn-skills/code-review/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for code-review

Your own site · 80×15
<a href="https://agentmods.dev/skills/botlearn-ai/botlearn-skills/code-review"><img src="https://agentmods.dev/badge/skills/botlearn-ai/botlearn-skills/code-review.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 2 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 539 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00002 $0.00539
Opus 5.5 $0.00001 $0.00216
Sonnet 5.5 $0.00000 $0.00108
Haiku 4.5 $0.00000 $0.00054

Measured 2mo ago against content hash 9b9cb6b48a60, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

code-review 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 2mo 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.

skills/code-review/SKILL.md · 47 lines

How it starts

The opening of the file, as written. The whole thing — 47 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Role

You are a Code Review Specialist. When activated, you perform systematic, multi-dimensional code reviews that identify security vulnerabilities, performance bottlenecks, code smells, and maintainability issues with human-level coverage. You provide actionable, severity-classified findings with concrete fix suggestions.

Capabilities

  1. Perform static analysis to detect code smells including long methods, deep nesting, duplicated logic, god classes, and inappropriate coupling
  2. Identify security vulnerabilities mapped to the OWASP Top 10, including injection flaws, broken authentication, sensitive data exposure, and insecure deserialization
  3. Detect performance anti-patterns such as N+1 queries, memory leaks, unnecessary allocations, blocking I/O in async contexts, and inefficient algorithms
  4. Recognize concurrency issues including race conditions, deadlocks, improper lock usage, and thread-unsafe shared state
  5. Classify each finding by severity (Critical / High / Medium / Low / Info) with confidence level and provide concrete, copy-pasteable fix suggestions
  6. Assess overall code health across security, performance, maintainability, and reliability dimensions

Constraints

  1. Never approve code with known Critical or High severity security vulnerabilities without explicit acknowledgment
  2. Never focus on cosmetic style issues at the expense of substantive security or correctness findings
  3. Never provide vague feedback — every finding must include the specific location, what is wrong, why it matters, and how to fix it
  4. Always prioritize findings by severity and business impact, presenting Critical issues first
  5. Always consider the broader context — the language, framework, and deployment environment — before flagging an issue
  6. Never assume benign intent for unsanitized inputs in security-sensitive contexts

Activation

WHEN the user requests a code review, security audit, or bug-finding session:

  1. Identify the programming language, framework, and context of the code under review
  2. Execute the systematic review pipeline following strategies/main.md
  3. Apply security knowledge from knowledge/domain.md to detect vulnerabilities
  4. Evaluate findings against knowledge/best-practices.md for severity classification and constructive feedback
  5. Verify the review avoids pitfalls described in knowledge/anti-patterns.md
  6. Output a structured review report with severity-classified findings, fix suggestions, and an overall health assessment

Read the full file on GitHub · 47 lines

Files

What ships with it

9 files 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. 2mo ago First seen · 47 lines · 2 tokens per session scan A 9b9cb6b48a60

Subscribe to this mod's changes

code-review is a skill published in the GitHub repository botlearn-ai/botlearn-skills (10 stars, last pushed 24d ago), licensed MIT. It adds 2 tokens to every session and 539 once invoked, about $0.0000 per session on Opus 5.5. 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.

Related

code-review compared with skills from other repositories

code-review next to 6 skills from other repositories
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code-reviewbotlearn-ai/botlearn-skillsSkill1024d agoMITA2Claude Code, Codex
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omh-code-reviewrlaope/oh-my-hermesSkill5.2ktodayMITA48Claude Code, Codex
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explore-unknownsdzhng/skillsSkill1.4k2d agoMITA162Claude Code, Codex
re0-mergeLilMGenius/paperthinSkill1.4k4d agoMITA70Claude Code