Advanced13 min

Project: Build a Code Review Agent

End-to-end walkthrough: build a code review agent with Deep Agents + sandbox for safe code analysis, project-specific skills, parallel file review, and GitHub integration.

Quick Reference

→Architecture: Deep Agent with sandbox backend + skills for project conventions
→File analysis: read diff → understand context → review for bugs, security, style
→Parallel review: subagents review different files concurrently
→Skills: project-specific coding standards, architecture patterns, security rules
→Integration: GitHub webhook triggers review on PR creation
→Output: inline review comments with severity levels and fix suggestions

Architecture

Code review agent with Deep Agents + sandbox

Project-Specific Skills

skills/python-standards/SKILL.md

Parallel File Review

For large PRs with many changed files, the agent delegates each file to a file_reviewer subagent. Each subagent reads the file, applies the relevant skills, and returns findings. The main agent synthesizes all findings into a cohesive review.

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