Highlights

This release adds a dedicated cowork-server binary/release track, expands OpenCode and Exa-backed tool/provider support, and hardens the download plus overflow paths that landed in this version. It also includes the test-isolation fix that unblocked the v0.1.20 desktop release validation run.

Added

• Added a dedicated cowork-server release workflow with Bun-built macOS and Windows binaries published from cowork-server-v* tags.
• Added OpenCode provider support for the harness, including the OpenCode Zen path, shared provider metadata, and saved-key aware auth wiring.
• Added spill-file handling for oversized tool output so long tool responses can be written to disk with a consistent 5,000-character preview across runtime, desktop UI, and docs.

Changed

• Reworked webFetch to save downloadable content into the workspace Downloads folder, while using Exa-backed extraction for non-download content.
• Updated provider and pricing metadata so usage-based OpenCode variants, model adapter wiring, and provider defaults surface more consistently across the harness and desktop settings.
• Expanded desktop developer/provider settings and websocket protocol coverage to expose the new provider and tool behaviors more clearly.

Fixed

• Fixed download path reservation and markdown-download handling so fetched files claim their destination safely and no longer trigger the default-reset regressions seen in this range.
• Fixed OpenCode routing, persistence edge cases, Exa credential preference, and overflow-default handling that were causing inconsistent runtime and desktop behavior.
• Fixed the observability health schema TypeScript regression and removed the leaked TUI AgentSocket module mock that was causing websocket/REPL CI flakes during release validation.

What's Changed

• Add cowork-server Bun binary build, runtime tweaks, and release workflow by @mweinbach in https://github.com/mweinbach/agent-coworker/pull/34
• Fix download reservation and default-reset behaviors by @mweinbach in https://github.com/mweinbach/agent-coworker/pull/35

Full Changelog: https://github.com/mweinbach/agent-coworker/compare/v0.1.19...v0.1.20