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// codegen.com

Find tools. Build agents.

The developer directory for Claude Code, Cursor, Windsurf, and every AI coding tool worth using.

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codegen — zsh
$ codegen search "summarize a PR"
# 3 results across the directory
→ diff-summarizer skill Claude Code, Cursor
→ code-review-agent agent ~20 min build
→ using-plan-mode guide 9 min read
$ claude skill add diff-summarizer
✓ installed diff-summarizer — ready in this session
$
CL Claude Code Anthropic terminal first autonomous coding agent with 72.5% SWE bench score, up to 1M token context, and native MCP integration. 1 skill · 6 guides CU Cursor AI native code editor built on VS Code with Composer for multi file editing, parallel agents, and the largest community in the category. GI GitHub Copilot GitHub AI coding assistant with inline suggestions, chat, and expanding agentic capabilities. The most widely adopted tool with the lowest entry price. WI Windsurf AI native IDE with Cascade agent mode and adaptive Memories that learn your coding style, now owned by Cognition AI. CO Codegen Enterprise orchestration platform for AI coding agents with full ClickUp task context, governance, and audit trails. DE Devin Autonomous AI software engineer that plans, codes, tests, and delivers pull requests in a sandboxed environment.
View all 18 tools → Browse 2 skills → Browse 4 best-of lists →
// comparisons
Claude Code vs Windsurf: Which AI Coding Agent Fits Your Workflow? Claude Code and Windsurf both run AI agents that read your codebase, plan changes, and edit across many files. GitHub Copilot vs Windsurf: Which AI Coding Tool Should You Pick in 2026? Copilot and Windsurf represent two fundamentally different approaches to AI-assisted coding. Antigravity CLI vs Claude Code: Which Terminal Coding Agent Wins in 2026? Both tools live in the terminal and drive an agent that reads your code, edits files, and runs commands.
All comparisons →
// learn
Putting It All Together: Your First Working Agent Claude Code · 15 min tutorial Connecting MCP Servers to Your Agent Claude Code · 10 min tutorial Adding Skills to Your Agent Claude Code · 8 min tutorial
All guides →
Course
Build Your First AI Coding Agent

This course walks through Claude Code's agent system from first concepts to a fully configured code review pipeline. Six lessons, each self-contained but building…

6 lessons · 6 lessons, ~1 hour total
Start learning →
code-review.yml
name: code-review
on: pull_request
skills:
  - diff-summarizer
  - security-lint
  - test-coverage
rules:
  - review-checklist
  - no-secrets
model: claude-sonnet-4.5
comment: on-failure
run: claude review --diff origin/main
// agent recipes

Build automated workflows

01Reads the PR diff
02Summarizes changes across files
03Runs security and secrets scan
04Checks test coverage
05Posts a review comment on failure
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Also automate standups, issue triage, and reporting →

Pick a tool

Every tool page links the skills, configs, and guides ready to copy.

Browse the directory →