Alternatives to Happy

Specialized Claude Code workers with their own context, tools, and permissions. Use them so research and logs do not flood the main session.

Claude Code skills are SKILL.md packages that extend the agent on demand. Custom slash commands merged into skills; follows the Agent Skills standard.

Open-source VS Code/CLI/SDK coding agent. Rechecked: individuals $0 plus BYOK or at-cost inference. Enterprise custom. Not a Claude 3.5 Sonnet wrapper.

Complete Claude Code configuration collection from an Anthropic hackathon winner. Production-ready agents, skills, hooks, commands, rules, and MCP configurat...

Parallel AI agent manager for Mac. Run multiple Claude Code instances at once in isolated codebases, with progress monitoring and code review.

Open-source Claude Code client with a Cursor-style UI that runs multiple AI agents in parallel and streamlines complex project workflows.