## QA PASSED See QA report document: 54f7de5f-1a4f-44a8-8fb9-e94112506eb2 All filter toggle tests pass: - 17/17 TestFilterHotkeys tests pass - 316/316 total TUI tests pass The fix correctly implements toggle behavior: - Pressing 'f' with active filter clears it - Pressing 'f' with no filter opens filter pane Fix verified working. **Note:** tests/test_tui.py has a pre-existing import error unrelated to this fix. The equivalent tests in tests/tui_tests/ provide full coverage.

## Fix Applied **Problem**: The action_filter_by_project() method in tui/app.py always opened the filter pane modal without checking if a filter was already active. **Changes Made**: 1. **tui/app.py (lines 1765-1773)**: - Added check at start of action_filter_by_project() to call _has_active_filter() - If filter is active: clear all filters, refresh, update indicator, notify, and return early - If no filter active: proceed to open filter pane (existing behavior) 2. **tests/tui_tests/test_navigation.py (lines 807-823)**: - Fixed test_f_opens_filter_pane test which incorrectly set a filter before pressing 'f' - Updated to verify filter pane opens only when no filter is active **Verification**: - test_f_toggles_filter now passes (was failing before) - test_f_opens_filter_pane now passes (tests the 'open pane' path) - All 495 TUI tests pass - All 17 filter-related tests pass

## Bug Triage Complete **Reproduction:** CONFIRMED **Summary:** The `action_filter_by_project()` method always opens the filter pane without checking if a filter is already active. The fix is to add a conditional check at the start of the method to clear filters if any are active, mirroring the Escape key behavior. **TDD Approach:** 1. Run failing test: `uv run pytest tests/test_tui.py -k test_f_toggles_filter -v` 2. Add check for `_has_active_filter()` at start of `action_filter_by_project()` 3. If filter active, call `_clear_all_filters()`, refresh, and return 4. Otherwise proceed to open filter pane **Complexity:** Low - All helper methods already exist See attached triage report for full details.