Agent skill

Code Review

by 21pounder in 21pounder/terminalAgent

A skill your agent uses when user asks to "review code", "check for issues", "analyze code quality", "find bugs", or wants feedback on code implementation.

Apache-2.0Auto-check passedDevelopment

Install Code Review

skills CLI
$ npx skills add 21pounder/terminalAgent --skill code-review -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install 21pounder/terminalAgent code-review --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/21pounder/terminalAgent.git skills-src && mkdir -p .claude/skills && cp -r skills-src/deepresearch/.claude/skills/code-review .claude/skills/code-review && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
code-review
GitHub stars
120
Used in
1 other repo
Token cost
~650 tokens
SKILL.md length
261 words
Files
1
Skills in repo
4
Repo updated
First seen
Licence
Apache-2.0

At a glance

A skill your agent uses when user asks to "review code", "check for issues", "analyze code quality", "find bugs", or wants feedback on code implementation.

  • Works in 4 steps: Context Gathering → Analysis → Prioritization → …
  • User asks to review code
  • SKILL.md covers Parameters, When to Use, Methodology and Guidelines, plus 1 more section
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Code Review is an agent skill from 21pounder/terminalAgent. Use this skill when user asks to "review code", "check for issues", "analyze code quality", "find bugs", or wants feedback on code implementation.

Its SKILL.md is about 650 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Development, covering Code review, Debugging and Code quality. The repository describes itself as: A powerful terminal coding agent based on Claude Agent SDK. Better then Claude Code when start up a new project, or u have no idea. Just try it. The licence is Apache-2.0.

When your agent uses it

  • User asks to review code
  • Check for issues
  • Analyze code quality
  • Wants feedback on code implementation

Example prompts

  • “review code”
  • “check for issues”
  • “analyze code quality”
  • “/code-review”

Requirements

  • Pre-approved tools (allowed-tools): Read, Glob, Grep

Workflow steps

4 steps, taken from the step headings in SKILL.md.

  1. Context Gathering
  2. Analysis
  3. Prioritization
  4. Output

What it can do on your machine

Read from SKILL.md and the folder at commit 989b029. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves these tools, so the agent can use them without asking each time:

    • Read
    • Glob
    • Grep

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md (its code samples are json).

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Code Review loads about 650 tokens when it runs. Until then it costs about 40 tokens; SKILL.md has 261 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~40
When it runs · the whole SKILL.md, loaded when a task matches
~650

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from 21pounder/terminalAgent at commit 989b029, republished under its Apache-2.0 licence (© 21pounder). 261 words, ~650 tokens.

Download SKILL.mdSave it as .claude/skills/code-review/SKILL.md (or your agent's skills folder).
name
code-review
description
Use this skill when user asks to "review code", "check for issues", "analyze code quality", "find bugs", or wants feedback on code implementation.
allowed-tools
Read, Glob, Grep
version
1.0.0

Code Review

Perform thorough code review analyzing quality, potential bugs, security issues, and suggesting improvements.

Parameters

json
{
  "type": "object",
  "properties": {
    "target": {
      "type": "string",
      "description": "File path, directory, or glob pattern to review"
    },
    "focus": {
      "type": "string",
      "enum": ["general", "security", "performance", "maintainability"],
      "description": "Primary focus area",
      "default": "general"
    }
  },
  "required": ["target"]
}

When to Use

  • User asks to "review" or "check" code
  • User wants to find bugs or issues
  • User asks about code quality
  • User wants security analysis
  • User asks for improvement suggestions

Methodology

Phase 1: Context Gathering
  • Read the target files
  • Understand the codebase structure
  • Identify the programming language and framework
  • Check for related tests and documentation
Phase 2: Analysis
  1. Logic Review: Check for bugs and edge cases
  2. Security Scan: Look for vulnerabilities (injection, auth issues, etc.)
  3. Performance Check: Identify bottlenecks and inefficiencies
  4. Style Review: Check consistency and best practices
Phase 3: Prioritization
  • Categorize issues by severity (Critical, High, Medium, Low)
  • Focus on actionable feedback
  • Provide concrete examples
Phase 4: Output

Provide structured review with:

  • Summary of findings
  • Issues list with severity and line numbers
  • Specific improvement suggestions
  • Code examples where helpful

Guidelines

  • Be constructive, not just critical
  • Provide specific line references
  • Explain WHY something is an issue
  • Suggest concrete fixes, not just problems
  • Acknowledge good patterns when found
  • Consider the project's existing style

Examples

Example 1: File Review

User Input: "Review src/auth.ts for security issues"

Expected Behavior:

  1. Read the file and understand authentication flow
  2. Check for common security issues (SQL injection, XSS, weak crypto)
  3. Verify input validation and sanitization
  4. Check for proper error handling
  5. Provide prioritized list of findings with fixes
Example 2: Directory Review

User Input: "帮我 review 一下 src/utils/ 目录的代码质量"

Expected Behavior:

  1. 列出并读取目录中的所有文件
  2. 分析代码结构、命名、错误处理
  3. 检查是否有重复代码或可抽象的模式
  4. 用中文输出详细的 review 报告
  5. 按严重程度排序问题列表

© 21pounder, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in deepresearch/.claude/skills/code-review of 21pounder/terminalAgent.

Open the folder on GitHubat commit 989b029

Used in 1 other repository

We found 1 copy of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in 21pounder/terminalAgent, which our catalogue first saw on October 7, 2026.

Compare with similar skills

Code Review next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Code Review compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Code Review this skill21pounder/terminalAgent1201 repos~650Automated safety check: PassApache-2.0
Frappe Agent ValidatorImpertio-Studio/Frappe_Claude_Skill_Package187—~2.8kAutomated safety check: PassMIT
Code Review AssistantArabelaTso/Skills-4-SE253—~3kAutomated safety check: PassApache-2.0
WooCommerce Code Reviewwoocommerce/woocommerce11k3 repos~1.1kAutomated safety check: PassCustom licence
Skill Doli Code ReviewDolibarr/dolibarr7.7k1 repos~1.1kAutomated safety check: PassMIT
Dignified Python Standardsdocling-project/docling68k—~1.5kAutomated safety check: PassApache-2.0

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Categories

Questions about Code Review

What does Code Review do?

A skill your agent uses when user asks to "review code", "check for issues", "analyze code quality", "find bugs", or wants feedback on code implementation. Code Review is an agent skill from 21pounder/terminalAgent. Use this skill when user asks to "review code", "check for issues", "analyze code quality", "find bugs", or wants feedback on code implementation.

When should I use Code Review?

Code Review fits situations like: user asks to review code; check for issues; analyze code quality; wants feedback on code implementation.

How do I install Code Review in Claude Code?

Run `npx skills add 21pounder/terminalAgent --skill code-review -a claude-code`. Or copy the skill folder (deepresearch/.claude/skills/code-review in 21pounder/terminalAgent) into .claude/skills/code-review in your project. Claude Code loads it when a task matches its description.

How do I install Code Review in Codex?

Run `npx skills add 21pounder/terminalAgent --skill code-review -a codex`. Or copy the skill folder (deepresearch/.claude/skills/code-review in 21pounder/terminalAgent) into .agents/skills/code-review in your project. Codex loads it when a task matches its description.

Can I use Code Review in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add 21pounder/terminalAgent --skill code-review -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/code-review, .gemini/skills/code-review, .github/skills/code-review and .opencode/skills/code-review in your project.

What does Code Review need to run?

SKILL.md names no scripts, command-line tools or credentials: Code Review is instructions for the agent only. Its frontmatter pre-approves these tools: Read, Glob, Grep.

Does Code Review access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Code Review safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Code Review use?

Code Review is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Code Review use?

About 650 tokens (SKILL.md is roughly 2.6k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Code Review?

Skills that share tags, products or a category with Code Review: Frappe Agent Validator (Impertio-Studio/Frappe_Claude_Skill_Package, 187 stars), Code Review Assistant (ArabelaTso/Skills-4-SE, 253 stars), WooCommerce Code Review (woocommerce/woocommerce, 11k stars) and Skill Doli Code Review (Dolibarr/dolibarr, 7.7k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Code Review?

21pounder (a GitHub user) maintains it in 21pounder/terminalAgent, which has 120 GitHub stars. The repository holds 4 skills in this directory. The repository was last updated on May 28, 2026.

Source: 21pounder/terminalAgent on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.