opencode
Open-source terminal coding agent (formerly `sst/opencode`; transferred to anomalyco). The **harness** is a multi-provider tool-call loop (Claude, OpenAI, Gemini, local) with strong plugin and MCP support; the TUI is the shell. 100% OSS, very actively shipped.
mcpprovider-agnosticclituitypescript
- Stars
- 224k
- Adoption surface
- slightly complex
- Autonomy
- headless
- Recovery
- resumable
- License
- ✅ open-source
Repository ↗ Example: Agent system page ↗
Related in Coding agent products (IDEs, CLIs, full suites)
Maintain opencode? Add the badge
Paste this into your README so readers can find the list and see how opencode compares:
[](https://github.com/RyanAlberts/best-of-Agent-Harnesses)