Tier 4 · Open-source coding agents Coding agents · fetched 2026-07-02
opencode (sst)
A polished terminal coding agent (from the SST team) demonstrating terminal-native agent UX: streaming TUI, session management, and provider-agnostic model routing.
View source on GitHubKey takeaways
- 01
Terminal agents live or die on streaming and session UX
- 02
Provider-agnostic routing future-proofs the harness
Flows built on this research
Agent Architecture
Streaming and Partial-Result UX
Stream model output and tool progress so users see the agent think and act - the UX baseline every serious terminal agent has set.
4 steps · 60-90 minutes
Agent Architecture
From CLI Harness to Product
Grow a working agent loop into a product: sessions, config, resumability, and the packaging polish the successful terminal agents share.
5 steps · 90-150 minutes