Duck.ai Contextual: Page Context attachment

[malmstein]

Task/Issue URL: https://app.asana.com/1/137249556945/project/1157893581871903/task/1213010969250403?focus=true

Description

This PR adds the changes agreed in the Ship Review for the context attachment feature

Steps to test this PR

Make sure you enable contextualMode and automaticContextAttachment FF
Turn Automatic Context Attachment in Settings / AI Features

New context UI

• Open Contextual Mode
• Verify “Attach Page Context” is visible
• Tap on “Attach Page Context”
• Verify context has been attached
• Remove the context
• Tap on “Summarise Page Content"
• Verify that the context has been attached and the prompt has been added
• Tap on Send
• Verify Duck.ai opens with prompt and context

Automatic context attachment - Setting ON

• Open Contextual Mode
• Enter a prompt
• Verify Duck.ai opens without context attached
• Verify that the context has been added to the web input
• Enter any prompt
• Verify context is added

Automatic context attachment - Setting OFF

• Turn Automatic Context Attachment iOFF n Settings / AI Features
• Open Contextual Mode
• Verify context is not attached
• Enter a prompt
• Verify Duck.ai opens without context attached
• Verify that the context has not been added to the web input
• Enter any prompt
• Verify context is not added

Sheet fully expands

• Open the app and start a contextual chat
• Verify sheet is in half expanded state when opened
• Focus on the input field
• Sheet should now be full expanded (over the toolbar)
• Hide the keyboard (back gesture or hide keyboard)
• Sheet should now be in half expanded state
• Enter a prompt and focus the web input
• Sheet should be in expanded state
• Hide the keyboard
• Sheet should still be in expanded state

---

Note

Medium Risk
Changes core Duck.ai contextual bottom-sheet UX/state (keyboard-driven expansion, context attach/detach rules, and lifecycle listener management), which can introduce regressions in sheet behavior and context sending. No auth/payment or sensitive data handling changes, but it alters how/when page context is attached and persisted.

Overview
Improves Duck.ai contextual mode page-context attachment flow and UI: adds a dedicated “Attach Page Content” control, clear-text handling, updated summarize prompt text, and refines when context is shown/attached (including tracking when the user explicitly removed context).

Tightens automatic context attachment behind a new DuckChatFeature.automaticContextAttachment() remote toggle and updates JS handling so getAIChatPageContext only returns context for explicit reason=userAction requests (not init).

Refactors bottom-sheet behavior to better match browser/keyboard state: the contextual sheet now opens half-expanded, expands when the keyboard is visible, syncs container height to browser layout changes, restores omnibar state when hiding, and cleans up layout/bottom-sheet/keyboard listeners on view destruction; tests updated accordingly.

^{Written by Cursor Bugbot for commit 93607ad. This will update automatically on new commits. Configure here.}

[malmstein]

• Duck.ai Contextual: fit screen #7653
• Duck.ai Contextual: Page Context attachment #7635 👈 (View in Graphite)
• develop

This stack of pull requests is managed by Graphite. Learn more about stacking.

[cursor]

Cursor Bugbot has reviewed your changes and found 1 potential issue.

[cursor]

userRemovedContext flag not reset on new chat

Medium Severity

The onNewChatRequested function resets sheetMode, showFullscreen, and prompt but fails to reset userRemovedContext to false. When a user removes page context and later starts a new chat, the stale userRemovedContext = true flag persists, preventing automatic context attachment from working for the new conversation even though the user expects fresh context behavior.

 

[joshliebe]

LGTM, working well! 🚀