The client indexes tool/code-dispatch events into
ConversationSnapshot.codeDispatches (parent callId -> ToolResultNode-shaped
sub-calls; live mux and history replay build the identical index). ChatView
renders each run_code parent as the new code variant (description summary,
program as the expanded monospace body) with its sub-dispatches as
always-visible indented rows — every sub-row dispatches through the SAME
keyed conversation.chat.toolview hole with the same GenericToolCard
fallback, so custom registrations (bash sample) take over sub-rows exactly
as top-level rows. The details panel resolves sub-callIds to full logged
args and complete output through the native path.
Evidence: fixture turn 64 + built-bundle jsdom snapshot, real-machinery
jsdom suites (nesting, error state, details, running parent, reference
stability), and a recorded code-mode browser e2e round (keyless replay +
aria golden). Scaffold gains a toolsMode patch knob.
Five browser e2e scenarios over the existing keyless lane, one recorded
base fixture per spec family:
- live-interactions: one tool-free recorded turn + per-run override
sidecars authored in the spec (content single-sourced from the fixture
via deriveReplayScript, minted into a spec-owned temp dir). Cancel uses
a hang patch with a readyFile marker — the marker proves the stream is
parked mid-turn before the Stop click, so mid-stream cancellation is
deterministic by construction (turn/end 'aborted', composer re-enabled).
AUTH pins the non-retryable path: turn/end 'error', zero llm/retry
events, composer recovers; FIXME(web-error-surface) marks the found
product gap (no error copy renders — the client consumes no agent/error
frames and a pre-chunk failure freezes no partial). SERVER retry appends
the fixture's own success after an injected throw and proves llm-retry
end-to-end in the browser via the durable llm/retry record.
- question-composer: the shipped ask_user_question takeover blocks the
turn mid-step on the real userInteraction seam; the test answers through
the composer (the one sanctioned model-content-reactive drive step: the
turn cannot complete without it) and the tool result carries the answer.
Adds the composer waiting-state aria golden.
- steering: steers mid-turn while the composer blocks the step (the
deterministic mid-turn window). The steer rides the real wire
(session.prompt mode:'steer' POSTed from the page; the locked composer
has no steering gesture yet — TODO(web-steer-composer)); downstream is
all product: gateway -> Agent.steer -> step-boundary drain -> durable
steering/message -> SSE -> badged interjection bubble. Record mode
rejects a fixture whose live reply ignored the steer.
Scaffold gains the replayOverride passthrough; specs register in both
tsconfig planes (client exclude, host include).
The shared test module was named harness.ts inside a repo whose product
IS a harness — hopelessly ambiguous. Renamed to scaffold.ts with
launchWebScaffold/WebScaffold; tsconfig plane-split entries, the seam
JSDoc/README mentions, and both Agent Note languages updated.
Both scenarios gain a Playwright interaction step over the settled
transcript (after the golden capture, so committed aria surfaces stay
untouched): replay-round-trip clicks the reasoning fold open/closed over
wire-delivered state; seeded-history expands a read tool row rebuilt from
the cold log and asserts the recorded result text appears (read rows are
expand-in-place — rowExpands routes the click to the inline fold, not the
details column). test:web 30 passed | 1 skipped.
