A
AgentStack
tools / cli

OpenCode

Open-source CLI alternative to Claude Code. Subagents, MCP, plugins — fully OSS.

Open source · MIT Free
Visit homepage → Docs GitHub

Features

  • ▸ Subagents (.opencode/agent/)
  • ▸ Slash commands (.opencode/command/)
  • ▸ Plugins/marketplace
  • ▸ MCP server support
  • ▸ Hooks & lifecycle events
  • ▸ Session persistence

Pros

  • + Closest OSS analog to Claude Code
  • + Compatible with Claude Code's .claude/agents/ format
  • + MIT licensed — full freedom

Cons

  • − Smaller community than Claude Code
  • − Some plugins still maturing

Best for

  • · Teams wanting Claude Code UX with OSS
  • · Self-hosters
  • · Plugin authors

Avoid if

  • · You want enterprise SLAs
  • · You prefer GUI-first

Recipes using OpenCode

Build a multi-agent team in OpenCode (or Claude Code) for your project
Architect → Developer → Tester → Reviewer chain. Same pattern works in both.