Cos 1.0.2
Cos 1.0.2 fixes browser tool execution and cleans up the expandable work trace.
Fixes
- Recovers a valid first Cos tool call when a model omits the closing
</cos-tool>tag or tries to batch several calls in one response. - Never renders internal
<cos-tool>protocol in the visible assistant reply, including in tasks saved by 1.0.1. - Retries malformed tool protocol privately instead of exposing it to the user.
- Formats streamed reasoning summaries as readable plain-text lines instead of joined Markdown markers.
- Restores BetterWright navigation for GPT-5.6 Luna and other lightweight models that use Cos's text-tool harness.
- Keeps the Browser pane attached to the task session while tools navigate it.
- Replaces the shallow Computer Use scan with a Codex-compatible control contract and complete, breadth-first app state.
- Adds focused typing, coordinates, multi-click, drag, text selection, secondary actions, and large-chat composer discovery.
- Removes the redundant “Continuing after tool result” rows from expandable work traces, including older saved tasks.
- Keeps successful browser navigation alive when a later BetterWright step fails, returns the real error to the agent for retry, and avoids a fatal alert.
- Restores BetterWright's branded live-view bar and adds an animated orange agent cursor that follows human-style browser clicks and typing.
Assets
Cos-1.0.2.dmg— drag-and-drop app image for Apple silicon.Cos-1.0.2-macOS-arm64.zip— updater-compatible app archive.Cos-Source.zip— source snapshot for this tag.SHA256SUMS.txt— release checksums.