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Agent skill

Code Review

by justxor in justxor/claude-code-pro-course

Ревью изменений в текущей ветке относительно main. An agent skill from justxor/claude-code-pro-course.

MITAuto-check passedDevelopment

Install Code Review

skills CLI
$ npx skills add justxor/claude-code-pro-course --skill code-review -a claude-code

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

GitHub CLI
$ gh skill install justxor/claude-code-pro-course 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/justxor/claude-code-pro-course.git skills-src && mkdir -p .claude/skills && cp -r skills-src/starter-kit/.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
256
Token cost
~293 tokens
SKILL.md length
97 words
Files
1
Skills in repo
9
Repo updated
First seen
Licence
MIT

At a glance

Ревью изменений в текущей ветке относительно main. An agent skill from justxor/claude-code-pro-course.

  • Works in 4 steps: Определи базу: git diff main...HEAD… → Прочитай полный дифф и, где нужно,… → Проверь каждый файл по чек-листу → …
  • Tasks that involve Code review
  • SKILL.md covers Шаги and Формат отчёта
  • Calls git

What it does

Code Review is an agent skill from justxor/claude-code-pro-course. Ревью изменений в текущей ветке относительно main. Используй, когда просят проверить код, сделать ревью, найти проблемы перед PR или коммитом.

Its SKILL.md is about 290 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. It works with Git. The repository describes itself as: Claude Code PRO — полный курс и гайд на русском: CLAUDE.md, settings, skills, subagents, hooks, MCP, плагины, CI. 8 лабораторных, библиотека промптов и готовый starter-kit. Здесь…. The licence is MIT.

When your agent uses it

  • Tasks that involve Code review

Example prompts

  • “/code-review”

Requirements

  • Pre-approved tools (allowed-tools): Bash(git diff:*), Bash(git log:*), Bash(git status), Read, Grep, Glob

Workflow steps

4 steps, taken from the first numbered list in SKILL.md.

  1. Определи базу: git diff main...HEAD --stat (если main нет — master). Если изменений в ветке нет — используй git diff и git diff --staged.
  2. Прочитай полный дифф и, где нужно, окружающий код изменённых файлов.
  3. Проверь каждый файл по чек-листу
  4. Не придумывай проблем ради количества. Нет замечаний — так и скажи.

What it can do on your machine

Read from SKILL.md and the folder at commit 685e438. 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:

    • Bash(git diff:*)
    • Bash(git log:*)
    • Bash(git status)
    • Read
    • Grep
    • Glob

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • git

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

  • Network

    No URLs in SKILL.md. Its commands use git, which can reach the network depending on how they are called.

    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 293 tokens when it runs. Until then it costs about 39 tokens; SKILL.md has 97 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~39
When it runs · the whole SKILL.md, loaded when a task matches
~293

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 justxor/claude-code-pro-course at commit 685e438, republished under its MIT licence (© justxor). 97 words, ~293 tokens.

Download SKILL.mdSave it as .claude/skills/code-review/SKILL.md (or your agent's skills folder).
name
code-review
description
Ревью изменений в текущей ветке относительно main. Используй, когда просят проверить код, сделать ревью, найти проблемы перед PR или коммитом.
allowed-tools
Bash(git diff:*), Bash(git log:*), Bash(git status), Read, Grep, Glob

Code review

Шаги

  1. Определи базу: git diff main...HEAD --stat (если main нет — master). Если изменений в ветке нет — используй git diff и git diff --staged.
  2. Прочитай полный дифф и, где нужно, окружающий код изменённых файлов.
  3. Проверь каждый файл по чек-листу:
    • Корректность: логика, граничные случаи (null, пусто, большие значения), обработка ошибок
    • Безопасность: инъекции, секреты в коде, проверка прав, валидация ввода
    • Тесты: покрыто ли новое поведение; не ослаблены ли существующие тесты
    • Производительность: N+1, лишние циклы, утечки
    • Читаемость: имена, дублирование, соответствие стилю из CLAUDE.md
  4. Не придумывай проблем ради количества. Нет замечаний — так и скажи.

Формат отчёта

## Итог: <одно предложение>

### 🔴 Критично
- `файл:строка` — проблема → предложение

### 🟡 Стоит исправить
- ...

### 🟢 Мелочи
- ...

© justxor, MIT. 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 starter-kit/.claude/skills/code-review of justxor/claude-code-pro-course.

Open the folder on GitHubat commit 685e438

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 skilljustxor/claude-code-pro-course256—~293Automated safety check: PassMIT
Review Triage Phaseprisma/orm48k—~995Automated safety check: PassApache-2.0
Cursor Composer Task DelegateChachamaru127/claude-code-harness3.2k—~4.4kAutomated safety check: NotesMIT
Adopt PR Branch Contextpydantic/pydantic-ai-harness948—~1.8kAutomated safety check: PassMIT
Coding Protocollencx/skills196—~2.4kAutomated safety check: PassMIT
Targeted Emergency Bug FixVeryGoodOpenSource/vgv-wingspan109—~1.9kAutomated safety check: PassMIT

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Works with

Categories

Questions about Code Review

What does Code Review do?

Ревью изменений в текущей ветке относительно main. An agent skill from justxor/claude-code-pro-course. Code Review is an agent skill from justxor/claude-code-pro-course. Ревью изменений в текущей ветке относительно main.

When should I use Code Review?

Code Review fits situations like: tasks that involve Code review.

How do I install Code Review in Claude Code?

Run `npx skills add justxor/claude-code-pro-course --skill code-review -a claude-code`. Or copy the skill folder (starter-kit/.claude/skills/code-review in justxor/claude-code-pro-course) 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 justxor/claude-code-pro-course --skill code-review -a codex`. Or copy the skill folder (starter-kit/.claude/skills/code-review in justxor/claude-code-pro-course) 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 justxor/claude-code-pro-course --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?

Going by SKILL.md and its folder, Code Review needs the command-line tools its instructions call (git). Its frontmatter pre-approves these tools: Bash(git diff:*), Bash(git log:*), Bash(git status), Read, Grep, Glob.

Does Code Review access the network?

SKILL.md contains no URLs. Its commands use git, which can reach the network depending on how they are called. 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 MIT 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 293 tokens (SKILL.md is roughly 1.2k 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: Review Triage Phase (prisma/orm, 48k stars), Cursor Composer Task Delegate (Chachamaru127/claude-code-harness, 3.2k stars), Adopt PR Branch Context (pydantic/pydantic-ai-harness, 948 stars) and Coding Protocol (lencx/skills, 196 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Code Review?

justxor (a GitHub user) maintains it in justxor/claude-code-pro-course, which has 256 GitHub stars. The repository holds 9 skills in this directory. The repository was last updated on October 1, 2026.

Source: justxor/claude-code-pro-course on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.