fix(mobile): review dictated drafts without opening the keyboard

[Dwite]

Problem

The voice input guide says dictated text is inserted "ready for you to review and edit before sending". When dictation starts from the collapsed thread composer on iPhone, the transcript lands in a one-line field. Most of it cannot be read without tapping the field, which opens the keyboard.

Change

After a transcript lands in a collapsed thread composer, the composer opens to its full-height reading area without focusing the editor, so the keyboard stays down.

• Tapping the text focuses the editor as usual. Tapping the conversation collapses the composer. Sending clears the review state.
• The review state is scoped to the thread and only starts when the composer was not focused. Dictating into an open, focused composer behaves as before.
• The feed inset and the safe-area padding follow the taller composer, so the last message is not covered.

Two files: ThreadComposer.tsx holds the expanded-unfocused layout, and ThreadDetailScreen.tsx owns the review state and the feed spacing. The new-task composer already uses an expanded editor and is unchanged.

Scope and approval

This is a rebuild of #12917 on orchestrator V2, as asked in the closing comment. There is no prior issue or discussion. I am submitting it under the small, focused fix exception.

• Defect: the documented review step does not work for a collapsed composer, because the transcript is not readable there.
• Why it fits the exception: it reuses the existing expanded composer layout on the existing-thread screen. It adds no setting, default, contract, or provider change.

If you read this as a product behavior change and not a bug fix, tell me and I will take it to an Ideas discussion first.

Verification

Types and tests checked at 6fe0e0e08, merged with main at 9bd1d8009. The simulator captures are from c07523581, before that merge.

Main moved dictation into a shared session that keeps running after the composer leaves the screen (#15502). The transcript now lands through the callback captured when dictation started, so the review callback now reads composer focus from a ref that the focus events write, at the moment the transcript lands. The behavior on the thread screen is meant to be the same as in the captures.

Focused tests and types

• tsc --noEmit passes in apps/mobile.
• vp test run src/features/voice-input src/features/threads in apps/mobile: 342 tests pass in 41 files.
• Lint on the two changed files reports no errors.

iPhone simulator on V2

iPhone 17 Pro simulator, iOS 26.5, dev client built from this branch, connected to an isolated dev server. Simulators have no on-device transcription, so I used a temporary recorder and transcriber fixture that returns a fixed transcript after 1.5 seconds. The fixture was never committed. The before capture runs main's two composer files with the same fixture.

Before: transcript in one line	After: full reading area, keyboard down

Tap the text: editor takes focus	Tap the conversation: composer collapses

Before recording (9 s, 1.5x) · After recording (32 s, 2.5x)

1. Dictation from the collapsed composer: the composer opens to the full reading area, the editor is not focused, and the feed moves up with it.
2. Tap the text: the editor takes focus and the composer returns to its normal focused layout.
3. Tap the conversation: the composer collapses to one line.
4. Dictate again: the review opens again. Tap the conversation: it collapses directly.

One difference from #12917: the review starts only when the composer was not focused when the transcript landed. Dictating into a focused composer no longer leaves it tall after the keyboard is dismissed.

The environment name in the header is redacted in the screenshots and recordings.

Not checked: the simulator after the merge with #15502, a transcript that lands while another screen is in front, real microphone capture and speech recognition, a physical device, and sending from the review state (it would start a real agent run; handleSendMessage clears the review state). In step 2 the simulator had a hardware keyboard connected, so the software keyboard is not in the screenshot. Android is unaffected: voice input is iPhone-only.

Rebuilt from #12917 (GPT-6 in Codex). V2 rebuild and verification: Claude Opus 5.5 in Claude Code.

🤖 Generated with Claude Code

Fixes #16462

[macroscopeapp]

Approvability

Verdict: Approved at c075235

Macroscope's review found this PR approvable — This is a narrowly scoped mobile UI bug fix that keeps dictated drafts readable without opening the keyboard, while preserving existing focused editing and sending flows. It changes only composer state, sizing, and feed inset handling, with no schema, configuration, or sensitive-area impact.

^{You can add or adjust custom eligibility rules. Learn more.}

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• apps/mobile/src/features/threads/ThreadDetailScreen.tsx

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📝 Walkthrough

Walkthrough

The thread composer keeps a completed dictated draft expanded for review. The thread screen tracks review state for the selected thread and clears it when the composer is focused, collapsed, or the message is sent successfully.

Changes

Dictation Draft Review

Layer / File(s)	Summary
Composer dictation review behavior apps/mobile/src/features/threads/ThreadComposer.tsx	The composer calls a completion callback when dictated text updates the draft. During review, it stays expanded and sets the editor’s minimum height to its maximum height.
Thread review state and layout apps/mobile/src/features/threads/ThreadDetailScreen.tsx	The screen tracks review state for the selected thread when a nonempty draft is unfocused. It adjusts composer chrome and the iOS bottom inset during review, and clears review state on focus, successful send, or collapse.

Priority: ⬇️ Low

Estimated code review effort: 2 (Simple) | ~10 minutes

Change: Bug fix

Sequence Diagram(s)

sequenceDiagram
  participant VoiceInputController
  participant ThreadComposer
  participant ThreadDetailScreen
  VoiceInputController->>ThreadComposer: Update draft with transcript
  ThreadComposer->>ThreadDetailScreen: Call onDictationComplete
  ThreadDetailScreen->>ThreadComposer: Pass dictation review state

Loading

Suggested reviewers: juliusmarminge

Merge Risk: ⚪ Minimal · up to 6fe0e

Dictated drafts remain available for review until the user acts, with no actionable merge risk identified.

Security Architecture Review

Security architecture risk: ⚪ Minimal · up to 6fe0e

The change controls how an existing dictated draft is displayed. Dictation still writes to its original draft, and sending remains a separate, deliberate action. No material security risk was identified in the changed flow.

Retained concerns
No architecture-level concerns identified.

Security review details

Security Blast Radius

• inferred — The introduced effect is bounded to presentation of an existing mobile thread draft. The new callback changes local review state, not transcript destination or message-dispatch authority; the inspected flow therefore does not expand independently attackable service or data-store scope.

Trust Boundaries and Controls

• observed — Existing voice-input ownership controls remain in place: the commit callback retains its captured draft target, while editor-selection updates require a mounted composer with the matching owner key. The new screen callback records the captured thread key, and the current-thread equality check prevents another selected thread from entering review through that completion.

Resilience and Maintainability Implications

• inferred — A voice session can outlive the screen, and the new completion notification is not mounted-guarded. A late notification may therefore target discarded review state rather than restore review on remount. This affects transient presentation, not the captured draft destination or deliberate-send requirement, and is not retained as a security concern.

🚥 Pre-merge checks | ✅ 4

✅ Passed checks (4 passed)

Check name	Status	Explanation
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Title check	✅ Passed	The title clearly and concisely describes the main change: letting users review dictated drafts without opening the keyboard.
Description check	✅ Passed	The description covers the problem, change, scope rationale, verification, and UI evidence. It also states key testing limitations and explains why the focused-fix exception applies.

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Actionable comments posted: 1

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• 🪄 Fix CodeRabbit comments on this PR

🤖 Prompt to fix review comments

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Inline comments:
Review comments at @apps/mobile/src/features/threads/ThreadDetailScreen.tsx:
- Line 420: Update the focus-change callback in ThreadDetailScreen to assign
focused to composerFocusedRef.current immediately, before handling review state,
so handleDictationComplete uses the latest focus event even before the next
render.

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ℹ️ Review info

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📒 Files selected for processing (2)

• apps/mobile/src/features/threads/ThreadComposer.tsx
• apps/mobile/src/features/threads/ThreadDetailScreen.tsx

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