Claude Code emits many progress lines during work, burying the last
assistant text. 5 lines was not enough to reach it.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Each session always occupies the same number of lines, preventing
visual jitter between watch refreshes.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
When Claude requests a tool permission approval, the last JSONL entry is
type=assistant with stop_reason=tool_use. Previously this was always
classified as Working. Now, if the tool_use entry is older than 10s with
no new activity, it's classified as NeedsInput.
Also fix vmux label to accept fuzzy match queries (not just session UUIDs).
- TailReadJSONL: reverse-read JSONL without loading entire file
- FindSessionForProcess: match PID to most recent JSONL via EncodePath
- DetectState: heuristic based on last message stop_reason + tool name
- ExtractPreview: extract first 3 lines of last assistant text
- All 17 tests pass (session_test.go + state_test.go)
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
