- Added language-specific code formatters for JavaScript, Julia, Python, and Ruby to improve display rendering.
- Integrated display formatting into browser run and eval render tools while preserving verbatim execution.
- Added comprehensive test suites verifying formatting stability, lexical safety, and streaming behavior.
- Refactor status event display to show the most recent events as the live edge.
- Replace the bottom-trailing "more" indicator with a leading "earlier" marker when events exceed the display limit.
- Dynamically adjust the expanded display size based on the available preview window rows.
- Replaced commit-based stability checks with a unified `isTranscriptBlockFinalized` tracking mechanism.
- Removed deprecated provisional rendering configuration and flags across tool and renderer interfaces.
- Standardized native scrollback boundary logic to pin at the first unfinalized block using settled row verification.
- Updated and refactored test suites to validate block finalization and settled row boundaries instead of deprecated commit stability methods.
Added renderer metadata for pending and partial result paths that visibly consume spinner frames.
Stopped headerless bash pending previews from scheduling repaint ticks while preserving eval and shell header animation.
Started live partial tool spinner intervals for non-static tool blocks and forwarded spinner frames through eval and shell-style renderers.
Added regression coverage for live eval and shell preview spinner frames.
Fixes#4170
The eval tool's live agent()/parallel() subagent progress tree
(renderAgentProgressEvents) mutates on almost every progress tick: each
subagent's row inserts/removes a "current tool" line as it starts/stops a
tool call, and ticks its status icon/stats/duration in place. Meanwhile
options.isPartial holds true for the whole eval() cell — progress ticks
never carry an async completed/failed state, so the update handler keeps
passing isPartial: true throughout.
evalToolRenderer never opted out of the transcript's stable-prefix ratchet
for partial results, so ToolExecutionComponent.isTranscriptBlockCommitStable()
reported the block commit-stable during that churn. That let
deriveLiveCommitState promote still-mutating agent rows into native
scrollback (a "slow ticker"), and the renderer's committed-prefix resync
then repeatedly re-showed the frame tail under its "duplication, never
loss" contract — producing overlapping/duplicated subagent rows in the
TUI under heavy concurrent agent()/parallel() fan-out.
Set provisionalPartialResult: true on evalToolRenderer, the same opt-out
sshToolRenderer already uses for this class of bug (see the "pinned
expanded pending preview commit-unstable" fix). The block now stays
commit-unstable until the eval cell settles, keeping agent-progress rows
in the live, repaintable region for their whole lifetime.
Added eval-commit-stability.test.ts covering: partial → commit-unstable,
settled → commit-stable, non-opted-in tools (bash) unaffected, and
commit-unstable held across row-count/content churn between two partial
ticks.
Op: correct
Restores: spec:eval agent-progress rows must not be promoted into native scrollback while still mutating
- Removed deprecated eval prelude helpers `append`, `tree`, `diff`, `sort`, `uniq`, and `counter` from all supported runtimes.
- Cleaned up runtime implementations, protocol definitions, and UI rendering logic associated with the removed helpers.
- Updated project documentation, prompts, and test suites to reflect the reduced helper API surface.
- Recorded functional changes in the package changelog.
- Transitioned the eval tool from batch multi-cell execution to a single-step input structure with flat parameters.
- Updated core agent logic, UI components, and documentation to support state persistence across incremental eval calls.
- Restricted bash tool capabilities by requiring explicit use of `read` or `find` instead of `ls` or `find`.
- Added support for Ruby and Julia language runtimes to the eval tool and associated web renderers.
- Clamped tool output preview height to the available viewport rows to stop redundant banner commits.
- Added `outputBlockContentWidth` helper to accurately measure visual lines for scrollback budget calculations.
- Updated `bash` and `eval-render` output wrapping to account for block padding and inner content width.
- Added regression test confirming streaming tool output maintains a stable line count without duplicating headers.
- Implemented persistent execution backends for Ruby and Julia using dedicated kernel processes and NDJSON-based IPC.
- Integrated language-specific prelude environments, runtime path resolution, and security-focused environment variable filtering.
- Exposed configuration options, tool schema updates, and lifecycle management for seamless agent interaction with both languages.
- Added comprehensive integration tests and updated prompt documentation to support the new evaluation capabilities.
- Added session-domain modules and exports for session-entries, context, listing, loader, and migrations.
- Changed persistence to async append writes plus writeTextAtomic, removing sync line APIs.
- Added compaction-aware session context rebuild with dangling tool-call cleanup.
- Added resumable session resolution with status inference, id/stem/suffix matching, and backup recovery.
- Added `ToolRenderer.provisionalPendingPreview` in `renderers.ts` and consulted it from `ToolExecutionComponent.isTranscriptBlockCommitStable`, replacing the 15.11.6 blanket gate that marked every collapsed pending preview commit-unstable.
- Marked only the tail-window previews the result render re-anchors as provisional: the edit streamed-diff tail (`edit/renderer.ts`), bash/ssh command caps (`createShellRenderer`, `sshToolRenderer`), and eval cells with interleaved outputs (`evalToolRenderer`).
- Restored mid-stream scrollback commits for every other pending preview, so tool calls taller than the viewport (e.g. a task call's context/assignment markdown) no longer read as cut off until the result lands.
- Added a regression test in `tool-live-region-scrollback.test.ts` scroll-appending a tall collapsed streaming task call into native scrollback mid-stream.
- Replaced the fixed `CALL_PREVIEW_MAX_LINES` cap in `render-utils.ts` with a dynamic `previewWindowRows()` (terminal rows minus a chrome reserve); `capPreviewLines` now returns lines untouched when expanded and windows them otherwise.
- Applied the cap in every render state for bash and ssh command previews — streaming and final render identically instead of snapping fully open on completion — and included the preview window in bash's render cache key so terminal resizes invalidate it.
- Capped eval cell code previews via the same window; previously cell code was never capped at all, with `ctrl+o` remaining the only way to uncap.
- Added stream-vs-final parity coverage in `bash-sixel-render.test.ts`, `ssh-render.test.ts`, and the new `eval-code-preview.test.ts`, and a changelog entry.
- Added status.done and tool.* symbols to theme mappings and presets.
- Replaced generic success glyphs with contextual +/-, tool icons, and warnings.
- Mapped tool/task/job completions to status.done or status.enabled with icon overrides.
- Triggered runtime provider refresh after extension registration and warned on failure.
- Renamed eval oneshot helper from llm() to completion() across JS/Python APIs.
- Remapped eval bridge internals to completion semantics (__completion__, runEvalCompletion, completion status op).
- Updated docs, prompts, and timeout guidance to describe completion() usage and behavior.
- Adjusted completion defaults for active-session model preference, fallback parsing, and slow-tier effort handling.
- Computed live commit state from render diffs and drove native scrollback via safeLength.
- Fixed volatile live tool rows committing only after stream finalization in native scrollback.
- Stored append-only and volatile flags in FrozenRender snapshots for live-row tracking.
- Removed append-only streaming predicates from assistant and tool rendering paths.
- ToolExecutionComponent was updated to skip append-only treatment for finalized blocks and pass result state into `isStreamingPreviewAppendOnly`.
- Eval rendering was changed to render full code continuously and to report append-only status only once a result exists, avoiding commitment of stale pending previews.
- Live-region tests were added for expanded eval output overflow and for append-only transitions from pending to finalized streaming states.
- Stopped expanding the volatile tool block so a >100-line code arg no longer overflows the viewport.
- Kept streaming and resolved render shapes consistent at codeMaxLines.
- Extracted TUI rendering from `eval.ts` into a dependency-light `eval-render.ts` to break the circular initialization chain.
- `renderers.ts` now imports `evalToolRenderer` from `eval-render` directly, avoiding re-entry into the root barrel while `eval.ts` is still initializing.
- `eval.ts` re-exports `evalToolRenderer` and `EVAL_DEFAULT_PREVIEW_LINES` for backward compatibility.
- Increased first-event timeout test budget from 50ms to 5000ms to prevent CI scheduler jitter from tripping the watchdog on success cases.
can1357