Octopus Code Review
Expert code review skill leveraging the code-reviewer persona. Use when you need comprehensive code quality assessment, security vulnerability detection, or architecture review.
- Type
- Subagent
- Repository
- nyldn/claude-octopus
- GitHub stars
- 4.1k
- License
- MIT
- Repo last updated
- Sep 26, 2026
- Source file
- agents/skills/code-review.md
What Octopus Code Review is
Octopus Code Review is a subagent published in the nyldn/claude-octopus repository on GitHub, which has about 4.1k stars. The repository describes itself as: “Run multiple AI models against the same research, design, or coding task. Surface disagreements before you ship.”
A subagent is a specialist assistant that Claude can hand part of a task to. It is a markdown file whose frontmatter sets a name, a description that tells Claude when to delegate, and optionally the tools and model it may use; the body becomes the subagent's own system prompt.
Because a subagent works in its own context, it keeps the main conversation focused: Claude can send a narrow job, such as a review or a specialised analysis, to Octopus Code Review and get back a compact result.
How to install Octopus Code Review
Claude Code
- Download code-review.md from the repository.
- Save it to ~/.claude/agents/ to use it in every project, or to .claude/agents/ inside one project to share it through version control.
- Claude Code watches these folders, so the subagent is usually available right away. Ask Claude to use it by name, or @-mention it to make sure it runs.
Claude Cowork
- Cowork loads subagents through plugins. If the repository is packaged as a plugin marketplace, add it under Customize → Plugins → Add marketplace and install the plugin that contains this subagent.
- Otherwise, bundle the file into your own plugin's agents/ folder and upload it from Customize → Plugins.
New to extending Cowork? Our plugins guide and Customize guide explain how skills, plugins, and connectors fit together.
Inside the source file
An excerpt from agents/skills/code-review.md, shared under the repository's MIT license. Read the full file on GitHub.
Invokes the code-reviewer persona for thorough code analysis during the ink (deliver) phase.
Usage
# Via orchestrate.sh
./scripts/orchestrate.sh spawn code-reviewer "Review this pull request for security issues"
# Via auto-routing (detects review intent)
./scripts/orchestrate.sh auto "review the authentication implementation"Capabilities
- AI-powered code quality analysis
- Security vulnerability detection
- Performance optimization suggestions
- Architecture and design pattern review
- Best practices enforcement
Persona Reference
This skill wraps the code-reviewer persona defined in:
- agents/personas/code-reviewer.md
- CLI: codex-review
- Model: gpt-5.2-codex
- Phases: ink
Example Prompts
"Review this PR for OWASP Top 10 vulnerabilities"
"Analyze the error handling in src/api/"
"Check for memory leaks in the connection pool"
"Review the test coverage for the auth module"Before you install
- Read the whole file first. Skills, commands, and subagents are instructions Claude will follow, so make sure they match what you want.
- Check which tools, scripts, or MCP servers it uses. Local servers and scripts run with your permissions.
- Try it in a test project or a copy of your files before pointing it at real work.
- Pin the version you tested, and review changes before updating.
- Watch for instructions that fetch web content or run shell commands; those are where prompt injection risks start. See our prompt injection guide.
FAQ
What is Octopus Code Review?
Octopus Code Review is a subagent for Claude Code and Claude Cowork from the nyldn/claude-octopus repository on GitHub. Expert code review skill leveraging the code-reviewer persona. Use when you need comprehensive code quality assessment, security vulnerability detection, or architecture review.
How do I install Octopus Code Review in Claude Code?
Download code-review.md from the repository. Save it to ~/.claude/agents/ to use it in every project, or to .claude/agents/ inside one project to share it through version control. Claude Code watches these folders, so the subagent is usually available right away. Ask Claude to use it by name, or @-mention it to make sure it runs.
Can I use Octopus Code Review in Claude Cowork?
Cowork loads subagents through plugins. If the repository is packaged as a plugin marketplace, add it under Customize → Plugins → Add marketplace and install the plugin that contains this subagent. Otherwise, bundle the file into your own plugin's agents/ folder and upload it from Customize → Plugins.
Is Octopus Code Review safe to install?
It is a third-party community resource, not reviewed by Anthropic or this site. Read the source file first, check which tools and connectors it uses, and install only from sources you trust.
Similar resources
- Devops Troubleshooter Expert DevOps troubleshooter specializing in rapid incident response, advanced debugging, and modern observability. Masters log analysis, distributed tracing, Kubernetes debugging, performance optimization, and root cause analysis. Handles production outages, system reliability, and preventive monitoring. Use PROACTIVELY for debugging, incident response, or system troubleshooting. Subagent · nyldn/claude-octopus
- Exec Communicator Expert executive communicator specializing in board presentations, stakeholder reports, and C-suite communication. Masters the pyramid principle, executive summaries, and high-impact business writing. Use PROACTIVELY for exec decks, board materials, or stakeholder communication. Subagent · nyldn/claude-octopus
- Frontend Developer Frontend developer. Delegate only when the user explicitly starts an Octopus workflow. Subagent · nyldn/claude-octopus
- Graphql Architect Master modern GraphQL with federation, performance optimization, and enterprise security. Build scalable schemas, implement advanced caching, and design real-time systems. Use PROACTIVELY for GraphQL architecture or performance optimization. Subagent · nyldn/claude-octopus
- Octopus Security Audit Comprehensive security auditing skill leveraging the security-auditor persona. Use for vulnerability scanning, OWASP compliance checks, and security reviews. Subagent · nyldn/claude-octopus
- Octopus Architecture System architecture and design skill leveraging the backend-architect persona. Use for API design, microservices patterns, and distributed systems planning. Subagent · nyldn/claude-octopus
- Openclaw Admin Expert sysadmin for OpenClaw instance management across macOS, Ubuntu/Debian, Docker, OCI, and Proxmox. Masters service lifecycle… Subagent · nyldn/claude-octopus
- Mermaid Expert Create Mermaid diagrams for flowcharts, sequences, ERDs, and architectures. Masters syntax for all diagram types and styling. Use PROACTIVELY for visual documentation, system diagrams, or process flows. Subagent · nyldn/claude-octopus