- Extracted decodeStreamedToolArgs into tool-args-reveal.ts and used it from both the live event path and transcript rebuilds, so mid-write theme/settings/focus replays no longer show stale streamed write/edit/eval content.
- Fixed the smoothing-off live path returning stale provider-parsed args.
- Documented the mandatory shared decode in the AGENTS.md streaming-preview hazard note; added changelog entries for this batch.
Emitted partial write-tool updates before filesystem, archive, SQLite, internal URL, and conflict writes so the TUI can render execution-phase progress instead of waiting for the final result.
Updated the write renderer to keep partial results pending, show the progress snapshot, and suppress diagnostics until the final result.
Fixes#3960
- Updated write streaming content formatting to accept an expanded flag and show full output only when expansion is active.
- Passed the expanded state from the write renderer so in-flight write previews now lift the 12-line cap on Ctrl+O.
- Added streaming write preview tests to verify collapsed tail capping, expansion growth, and short-write behavior.
can1357