Code Reviewer
jewbetcha/opentrace
Comprehensive code review skill for TypeScript, JavaScript, Python, Swift, Kotlin, Go.
Code review automation for TypeScript, JavaScript, Python, Go, Swift, and Kotlin.
Install Code Reviewer
$ npx skills add borghei/Claude-Skills --skill code-reviewer -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install borghei/Claude-Skills code-reviewer --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/borghei/Claude-Skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/engineering/code-reviewer .claude/skills/code-reviewer && rm -rf skills-srcUse ~/.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/
Install the "code-reviewer" agent skill from https://github.com/borghei/Claude-Skills/tree/main/engineering/code-reviewer into .claude/skills/code-reviewer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "code-reviewer", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/borghei/Claude-Skills/tree/main/engineering/code-reviewerType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add borghei/Claude-Skills --skill code-reviewer -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install borghei/Claude-Skills code-reviewer --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/borghei/Claude-Skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/engineering/code-reviewer .agents/skills/code-reviewer && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "code-reviewer" agent skill from https://github.com/borghei/Claude-Skills/tree/main/engineering/code-reviewer into .agents/skills/code-reviewer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "code-reviewer", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add borghei/Claude-Skills --skill code-reviewer -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install borghei/Claude-Skills code-reviewer --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/borghei/Claude-Skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/engineering/code-reviewer .cursor/skills/code-reviewer && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "code-reviewer" agent skill from https://github.com/borghei/Claude-Skills/tree/main/engineering/code-reviewer into .cursor/skills/code-reviewer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "code-reviewer", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/borghei/Claude-Skills.git --path engineering/code-reviewer--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add borghei/Claude-Skills --skill code-reviewer -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install borghei/Claude-Skills code-reviewer --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/borghei/Claude-Skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/engineering/code-reviewer .gemini/skills/code-reviewer && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "code-reviewer" agent skill from https://github.com/borghei/Claude-Skills/tree/main/engineering/code-reviewer into .gemini/skills/code-reviewer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "code-reviewer", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install borghei/Claude-Skills code-reviewerInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add borghei/Claude-Skills --skill code-reviewer -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/borghei/Claude-Skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/engineering/code-reviewer .github/skills/code-reviewer && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "code-reviewer" agent skill from https://github.com/borghei/Claude-Skills/tree/main/engineering/code-reviewer into .github/skills/code-reviewer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "code-reviewer", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add borghei/Claude-Skills --skill code-reviewer -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install borghei/Claude-Skills code-reviewer --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/borghei/Claude-Skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/engineering/code-reviewer .opencode/skills/code-reviewer && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "code-reviewer" agent skill from https://github.com/borghei/Claude-Skills/tree/main/engineering/code-reviewer into .opencode/skills/code-reviewer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "code-reviewer", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
code-reviewer- GitHub stars
- 874
- Token cost
- ~1.7k tokens
- SKILL.md length
- 720 words
- Files
- 8 (incl. scripts, references)
- Skills in repo
- 364
- Repo updated
- First seen
- Licence
- MIT
At a glance
Code review automation for TypeScript, JavaScript, Python, Go, Swift, and Kotlin.
- Analyzing code quality
- SKILL.md covers Core Capabilities, When to Use, Clarify First and Tools, plus 3 more sections
- Runs Python scripts from its folder; calls python
- Generating review checklists
What it does
Code Reviewer is an agent skill from borghei/Claude-Skills. Code review automation for TypeScript, JavaScript, Python, Go, Swift, and Kotlin. Analyzes PRs for complexity, risk, SOLID violations, and code smells. Use when reviewing PRs, analyzing code quality, or generating review checklists.
Its SKILL.md is about 1.7k tokens, which your agent loads only when the skill is triggered. The skill folder holds 9 other files, including scripts and reference files (for example `references/code_review_checklist.md`, `references/coding_standards.md` and `references/common_antipatterns.md`).
It sits in Development, covering Code review, Android development and iOS development. It works with JavaScript, Kotlin, Python and TypeScript. The repository describes itself as: 385 AI skills, 77 expert agents, and 900 stdlib Python tools for every team: engineering, PM, marketing, C-level, compliance, business ops, research, and a LinkedIn toolkit… The licence is MIT.
When your agent uses it
- Analyzing code quality
- Generating review checklists
Example prompts
- “/code-reviewer”
Requirements
- Python 3
What it can do on your machine
Read from SKILL.md and the folder at commit c9a1487. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Ships 3 files in scripts/ (Python), which the agent can run.
Shell commands in SKILL.md call:
python
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 Reviewer loads about 1.7k tokens when it runs, and up to ~13k if it reads all its reference files. Until then it costs about 62 tokens; SKILL.md has 720 words of instructions outside code blocks.
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); the scripts in this folder are not scanned.
SKILL.md
The full file from borghei/Claude-Skills at commit c9a1487, republished under its MIT licence (© borghei). 720 words, ~1,690 tokens.
Download SKILL.mdSave it as
.claude/skills/code-reviewer/SKILL.md (or your agent's skills folder). This skill also uses 7 other files; get the full folder from GitHub.- name
- code-reviewer
- description
- Code review automation for TypeScript, JavaScript, Python, Go, Swift, and Kotlin. Analyzes PRs for complexity, risk, SOLID violations, and code smells. Use when reviewing PRs, analyzing code quality, or generating review checklists.
- license
- MIT + Commons Clause
- metadata.version
- 1.1.0
- metadata.author
- borghei
- metadata.category
- engineering
- metadata.domain
- code-quality
- metadata.updated
- 2026-06-17
- metadata.tags
- code-review, pull-request, code-quality, best-practices
Code Reviewer
Automated code review tooling that analyzes pull requests for complexity and risk, scans source for code smells and SOLID violations, and consolidates findings into structured review reports with a verdict, score, and prioritized action items. Supports TypeScript, JavaScript, Python, Go, Swift, and Kotlin.
Core Capabilities
- PR risk analysis — scan git diffs for hardcoded secrets, SQL injection, debug statements, lint bypasses,
anytypes, and TODO/FIXME, with a 1-10 complexity score. - Code quality checking — detect long functions, large files, god classes, deep nesting, too many params, high cyclomatic complexity, missing error handling, unused imports, and magic numbers against fixed thresholds.
- SOLID & antipattern detection — flag structural, logic, security, performance, testing, and async antipatterns with fixes.
- Review reports — merge PR and quality findings into a verdict (approve / request changes / block), 0-100 score, and ranked action items in text, markdown, or JSON.
- Review order prioritization — sort files so security-sensitive code is inspected first.
- Commit hygiene — validate conventional-commit format across a branch.
When to Use
- Reviewing a PR and needing fast pre-screening before manual logic review.
- Analyzing code quality or auditing a codebase for smells and SOLID violations.
- Generating a structured review report or review checklist.
- Gating merges in CI/CD on a quality score or review verdict.
Clarify First
Before producing the review, confirm these inputs. If any is unknown or vague, ASK — do not assume:
- What to review — the git diff/branch (base and head) or a source directory (sets
--base/--heador the path the analyzers scan) - Language — TypeScript, JavaScript, Python, Go, Swift, or Kotlin (selects the rules
code_quality_checker.pyapplies via--language) - Output & gate — report format (text/markdown/JSON) and any pass/fail score threshold (sets the artifact format and CI verdict)
Stop rule: ask only the 2-3 that most change the output. If the user says "just draft it," proceed and list your assumptions at the top of the artifact.
Tools
| Tool | Purpose | Command |
|---|---|---|
pr_analyzer.py | Assess PR complexity and risk from a git diff | python scripts/pr_analyzer.py . --base main --head feature-branch --json |
code_quality_checker.py | Detect code smells and SOLID violations in source | python scripts/code_quality_checker.py ./src --language typescript --json |
review_report_generator.py | Combine PR + quality findings into a review report | python scripts/review_report_generator.py . --format markdown --output review.md |
References
Load the reference that matches the task — keep this file lean and pull detail on demand:
- references/tool_reference.md — full per-tool usage, detection lists, threshold/verdict tables, all CLI flags, JSON output samples, supported-language extensions, troubleshooting table, and success criteria. Read when running, configuring, or debugging the scripts.
- references/code_review_checklist.md — systematic checklists for pre-review, correctness, security, performance, maintainability, testing, and language-specific checks. Read when performing a manual review pass.
- references/coding_standards.md — language-specific standards for TypeScript, JavaScript, Python, Go, Swift, and Kotlin (types, null safety, async, error handling, class design). Read when judging style and idiom compliance.
- references/common_antipatterns.md — antipattern catalog (structural, logic, security, performance, testing, async) with examples, detection cues, and fixes. Read when explaining or fixing a flagged smell.
Show full SKILL.md (250 more words)Show less
Scope & Limitations
Covers:
- Static pattern-based risk detection in git diffs (secrets, SQL injection, debug statements, lint bypasses)
- Structural code quality analysis: function length, class size, cyclomatic complexity, parameter count, SOLID violations
- PR metadata assessment: file categorization by risk priority, commit message validation, complexity scoring
- Consolidated review reports with verdicts, scores, and prioritized action items across text, markdown, and JSON formats
Does NOT cover:
- Runtime or dynamic analysis -- use
senior-qafor test execution andqa-browser-automationfor end-to-end testing - Security vulnerability scanning (CVE databases, dependency audits) -- use
senior-securityorsenior-secopsfor SAST/DAST and supply chain analysis - Performance profiling or benchmarking -- use
senior-backendorsenior-fullstackfor performance optimization workflows - Architecture-level review (system design, service boundaries, API contract validation) -- use
senior-architectfor architectural decision records and design review
Integration Points
| Skill | Integration | Data Flow |
|---|---|---|
senior-security | Feed PR Analyzer critical findings into security review workflows for deeper SAST/DAST analysis | pr_analyzer.py --json output risks.critical[] → security assessment input |
senior-qa | Gate test execution on review report verdict; block test suites when verdict is block | review_report_generator.py --json output summary.verdict → QA pipeline gate |
senior-architect | Escalate high-complexity PRs (score 7+) to architecture review | pr_analyzer.py output summary.complexity_score → architecture review trigger |
senior-fullstack | Combine code quality scores with fullstack quality analyzer for end-to-end project health | code_quality_checker.py --json output → merged with code_quality_analyzer.py metrics |
tdd-guide | Cross-reference review findings with test coverage; flag untested code paths flagged by quality checker | Quality checker smells[] by file → TDD coverage gap analysis |
senior-devops | Integrate review reports into CI/CD pipelines as automated quality gates | review_report_generator.py --json output summary.score → pipeline pass/fail threshold |
© borghei, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
SKILL.md and 7 other files (scripts, references) in engineering/code-reviewer of borghei/Claude-Skills.
- SKILL.md
- references/code_review_checklist.md
- references/coding_standards.md
- references/common_antipatterns.md
- references/tool_reference.md
- scripts/code_quality_checker.py
- scripts/pr_analyzer.py
- scripts/review_report_generator.py
Open the folder on GitHubat commit c9a1487
Compare with similar skills
Code Reviewer 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.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Code Reviewer this skillborghei/Claude-Skills | 874 | — | ~1.7k | Automated safety check: Pass | MIT | |
| Code Reviewerjewbetcha/opentrace | 116 | 2 repos | ~1.1k | Automated safety check: Notes | MIT | |
| Code Revieweralirezarezvani/claude-skills | 28k | 1 repos | ~1.6k | Automated safety check: Pass | MIT | |
| Code ReviewerLeoYeAI/openclaw-master-skills | 2.2k | 1 repos | ~1.2k | Automated safety check: Pass | MIT | |
| Cross-Language Coding Standardszereight/gitlab-mcp | 2k | 1 repos | ~1.4k | Automated safety check: Pass | MIT | |
| Coding Agentmastra-ai/mastra | 29k | — | ~2.3k | Automated safety check: Pass | Custom licence |
Similar skills
Code Reviewer
alirezarezvani/claude-skills
Code review automation for TypeScript, JavaScript, Python, Go, Swift, Kotlin, C, .NET, Java, C, C++, Rust, Ruby, PHP, and Dart/Flutter.
Code Reviewer
LeoYeAI/openclaw-master-skills
Code review automation for TypeScript, JavaScript, Python, Go, Swift, Kotlin.
Cross-Language Coding Standards
zereight/gitlab-mcp
Shared reference for naming, function size, complexity and error handling rules that reviewer agents apply across TypeScript, Python, Go, Rust, Java, C# and Swift.
Coding Agent
mastra-ai/mastra
Authoring playbook for building agents that write, edit, review, or refactor code.
Code Review Skill
Rain-kl/OpenFlare
Provides comprehensive code review guidance for React 19, Vue 3, Angular 17+, Svelte 5, Rust, TypeScript, Java, PHP, Python, Django, Go, C/.NET, Kotlin, Swift, NestJS, C/C++, and more.
More from borghei/Claude-Skills
All 364 skills in this repoAgents In The Team
borghei/Claude-Skills
Run delivery when AI coding and ops agents take tickets. An agent skill from borghei/Claude-Skills.
AI Content Disclosure
borghei/Claude-Skills
Check AI-generated marketing content and reviews for required disclosures under the EU AI Act, FTC rules and platform AI-label policies.
AI Prototyping
borghei/Claude-Skills
Idea to AI-generated prototype to customer validation to engineering handoff.
Analytics Engineer
borghei/Claude-Skills
Analytics engineering across data modeling, dbt, transformation, and semantic layers.
Ansoff Matrix
borghei/Claude-Skills
Ansoff Matrix — 4-quadrant framework for growth options: market penetration, market/product development, and diversification.
Brainstorm Okrs
borghei/Claude-Skills
OKR brainstorming and validation using the Radical Focus framework — outcome objectives, measurable key results, counter-metrics.
Related
Works with
Categories
Questions about Code Reviewer
What does Code Reviewer do?
Code review automation for TypeScript, JavaScript, Python, Go, Swift, and Kotlin. Code Reviewer is an agent skill from borghei/Claude-Skills. Code review automation for TypeScript, JavaScript, Python, Go, Swift, and Kotlin.
When should I use Code Reviewer?
Code Reviewer fits situations like: analyzing code quality; generating review checklists.
How do I install Code Reviewer in Claude Code?
Run `npx skills add borghei/Claude-Skills --skill code-reviewer -a claude-code`. Or copy the skill folder (engineering/code-reviewer in borghei/Claude-Skills) into .claude/skills/code-reviewer in your project. Claude Code loads it when a task matches its description.
How do I install Code Reviewer in Codex?
Run `npx skills add borghei/Claude-Skills --skill code-reviewer -a codex`. Or copy the skill folder (engineering/code-reviewer in borghei/Claude-Skills) into .agents/skills/code-reviewer in your project. Codex loads it when a task matches its description.
Can I use Code Reviewer 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 borghei/Claude-Skills --skill code-reviewer -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-reviewer, .gemini/skills/code-reviewer, .github/skills/code-reviewer and .opencode/skills/code-reviewer in your project.
What does Code Reviewer need to run?
Going by SKILL.md and its folder, Code Reviewer needs Python for the scripts in its folder and the command-line tools its instructions call (python). Our summary lists: Python 3.
Does Code Reviewer 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 Reviewer 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. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.
What licence does Code Reviewer use?
Code Reviewer is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Code Reviewer use?
About 1.7k tokens (SKILL.md is roughly 6.8k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 12k tokens, read only when the agent opens those files.
What are the alternatives to Code Reviewer?
Skills that share tags, products or a category with Code Reviewer: Code Reviewer (jewbetcha/opentrace, 116 stars), Code Reviewer (alirezarezvani/claude-skills, 28k stars), Code Reviewer (LeoYeAI/openclaw-master-skills, 2.2k stars) and Cross-Language Coding Standards (zereight/gitlab-mcp, 2k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Code Reviewer?
borghei (a GitHub user) maintains it in borghei/Claude-Skills, which has 874 GitHub stars. The repository holds 364 skills in this directory. The repository was last updated on October 7, 2026.
Source: borghei/Claude-Skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.