Timer-driven reveal and spinner ticks (streaming reveal, tool-args reveal,
tool-execution spinner, todo strike animation) now hand the changed
component to `TUI.requestComponentRender(component)` instead of forcing a
full-tree render at 30fps. Every other root subtree reuses its previous
frame rows, cutting the Box/Container tree walk out of the compose
pipeline while the transcript grows.
Shimmer:
- Intern the working-message palette per accent (WeakMap-keyed) so the
Symbol-slot compiled-ANSI cache in `shimmerSegments.compile` actually
hits between frames — the fresh palette literal in `renderWorkingMessage`
guaranteed a per-tick miss.
- Add an `activeBand` fast-path: outside the sweep window the intensity
is guaranteed zero, so those code points coalesce into a single low-tier
run without running `intensityFn` or `tierFor`. On the typical ~60-char
working message the classic band is 12 cells wide, so ~80% of the per-char
loop disappears.
Widen `ToolExecutionHandle` to extend `Component` (matches every
concrete impl — `ToolExecutionComponent`, `ReadToolGroupComponent` —
which already extend `Container`) so the reveal controller callback
sites are type-checked.
Fixes#4377
- Introduced JSON depth tracking to ensure string keys are only extracted at the top level.
- Prevented nested keys matching designated streaming keys from being prematurely or incorrectly captured.
- Added comprehensive unit tests validating nested key exclusion and correct top-level extraction order.
- 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.
Registered `edit.input` and `eval.code` alongside `write.content` so the reveal controller decodes those top-level string arguments incrementally between throttled full-JSON parses.
Added a regression test covering multi-key extraction so the wire-up survives future additions.
Refs #4043
Added incremental decoding for streamed write content so preview args update below the full JSON parse throttle.
Added a regression test covering sub-throttle content growth in ToolArgsRevealController.
Fixes#4043
ToolArgsRevealController.setTarget initialized new entries with revealed=0, so the first message_update returned { __partialJson: "" } even when the provider had already parsed a complete chunk. For renderers without exposeRawPartialJson (e.g. write), the throttled re-parse + cached displayArgs short-circuited every subsequent setTarget, leaving the preview body blank until tool_execution_end.
Seed revealed with the full incoming partialJson length on entry creation (clamped to a surrogate-safe boundary). The first frame now carries the parsed path/content immediately; subsequent message_updates extend target and the reveal ticks pace only the newly arrived bytes — no field is ever truncated because the seeded prefix is the longest the entry has seen so far.
Fixes#3881
- Optimized TUI tool argument previews by throttling JSON re-parsing to prevent frame starvation during high-frequency streaming.
- Suppressed redundant component updates for unchanged parsed fields while maintaining raw preview integrity for bash and patch renderers.
- Added adaptive parsing logic to `ToolArgsRevealController` that distinguishes between renderers requiring continuous raw JSON streams and those consuming parsed arguments.
- Updated `EventController` to dynamically determine exposure requirements based on tool type and wire-format metadata.
- Added smooth streaming reveal of streamed tool-call args and `{ input }` partial previews.
- Integrated ToolArgsRevealController in EventController to route partial and final args.
- Implemented UTF-16-safe slicing to prevent surrogate-pair splits during reveal boundaries.
- Implemented reveal lifecycle controls to flush or stop streamed arg frames at message boundaries.
- Added tests for monotonic reveal progression, non-smooth immediate output, and flush/stop behavior.
roboomp