[trissim]

2 choices, 1 saved preference

P1449 adds UI → Hint labels:

• Next letter (default): reveal the next untyped letter progressively.
• Full key: show the whole stable assigned sequence at once.

The choice is the actual Textual caption policy, composed through inheritance. ProfileKeys reads the saved preference and the native hint session retains it; no string switch, mode flag, target inventory or copied activation is added. Changing the setting affects the next hint session. Keys, prefix matching, focus, Escape and original click effects are unchanged.

Dependency

Merge OpenHCSDev/textual#293 first. The ordinary installer resolves both tracked mains; no hand-kept package pin is needed.

Settings ownership

App-bound settings callbacks now live in ToadApp.open_settings and ensure_settings_file, with their old SavedSettings entry points deleted. The persistence/schema module no longer imports its application through TYPE_CHECKING. NRA also proved and promoted widget_actions' guarded TextArea import against the repository graph.

Evidence

• 120 checks passed in the settings, keymap, sidebar and exit consumer batch. Its added UI test initially failed because the fixture used the conversation-block API for a generic widget; the fixture now mounts its targets through the native screen owner and enables notification rendering.
• The corrected UI integration check passed in 7.81s, exit 0: choose both modes in the real settings picker, activate a native hint, preserve the local draft, save and reload each choice.
• Native Textual checks passed separately; see Handle a lost transcript source in one place #293 for its exact final count and right-edge case.

Edits were simulated, reviewed and applied through NRA's revision-checked sequence. Installed physical two-sidebar qualification follows the paired merge. No user input was submitted or replayed.

[github-actions]

debt-src at 59f1ed9 blocks on 7 lines:

grew NoneAbsence:src/toad/app.py +1
grew TypeErrors:src/toad/hint_labels.py +1
grew TypeErrors:src/toad/widget_actions.py +1
found NoneAbsence:src/toad/app.py at src/toad/app.py:521 src/toad/app.py:344 src/toad/app.py:244 src/toad/app.py:140 src/toad/app.py:138
found TypeErrors:src/toad/hint_labels.py at src/toad/hint_labels.py:3 (Cannot find implementation or library stub for module named "textual.hint_labels"  [import-not-found])
found TypeErrors:src/toad/widget_actions.py at src/toad/widget_actions.py:26 (Cannot find implementation or library stub for module named "textual.hint_labels"  [import-not-found])
introduced NoneAbsence:src/toad/app.py at lines [344]

Warn-only, never blocks (6)

src/toad/app.py: LintFindings +1
src/toad/widget_actions.py: LintFindings +1
src/toad/hint_labels.py: Unformatted +1
found LintFindings:src/toad/app.py at src/toad/app.py:1 (I001 [*] Import block is un-sorted or un-formatted)
found LintFindings:src/toad/widget_actions.py at src/toad/widget_actions.py:2 (I001 [*] Import block is un-sorted or un-formatted)
found Unformatted:src/toad/hint_labels.py at src/toad/hint_labels.py:1 (Black would reformat this file)

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