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yellowjacket/.planning/STATE.md
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yonlu 0706f804a4 docs(09-03): complete scan control UI plan
- SUMMARY.md with scan control UI outcomes and deviations
- STATE.md updated to plan 4 of 5 (60% progress)
- ROADMAP.md updated with 3/5 plan progress
2026-03-06 21:57:47 -05:00

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---
gsd_state_version: 1.0
milestone: v1.1
milestone_name: Features & Extensibility
status: in_progress
last_updated: "2026-03-07"
progress:
total_phases: 6
completed_phases: 0
total_plans: 5
completed_plans: 3
---
# YellowJacket — Project State
## Project Reference
See: .planning/PROJECT.md (updated 2026-03-06)
**Core value:** The music player works reliably and feels solid — every interaction is correct, responsive, and trustworthy.
**Current focus:** v1.1 Features & Extensibility — Phase 9 in progress
## Current Position
Phase: 9 — Scan Cancellation & Keyboard Shortcuts
Plan: 4 of 5
Status: In progress
Progress: ████████████░░░░░░░░ 3/5 plans (60%)
Last activity: 2026-03-07 — Completed 09-03 (scan control UI)
### Phase Overview
| Phase | Status |
|-------|--------|
| 9. Scan Cancellation & Keyboard Shortcuts | In Progress (3/5 plans) |
| 10. Tag Editing | Not started |
| 11. Smart Playlists | Not started |
| 12. Gapless Playback & Crossfade | Not started |
| 13. MusicBrainz Browser | Not started |
| 14. Layout Customization & Plugin Foundation | Not started |
## Performance Metrics
**v1.0 baseline:** 8 phases, 17 plans, 34 tasks in 6 days (107 commits)
**v1.1 scope:** 6 phases, 43 requirements, 5 plans (Phase 9)
| Phase | Plan | Duration | Tasks | Files |
|-------|------|----------|-------|-------|
| 09-01 | scan control backend | 16 min | 2 | 5 |
| 09-02 | keyboard shortcuts config & service | 35 min | 2 | 12 |
| 09-03 | scan control UI | 2 min | 1 | 3 |
## Accumulated Context
### Key Decisions
Decisions from v1.0 are archived in PROJECT.md Key Decisions table. Key patterns to carry forward:
- Mutex-protected setter pattern (lock → write → release → callbacks)
- SAFETY comment convention for hand-crafted SQL
- AST-based codegen for cross-language constant sync
- Design tokens via `:host` scoped CSS custom properties
- queueMicrotask coalescing for store notifications
- `.renderItem` + `.keyFunction` (not `repeat()` children) for lit-virtualizer
### v1.1 Roadmap Decisions
| Decision | Rationale |
|----------|-----------|
| Phase 9 = Scan Cancel + Shortcuts | Quick wins, validate context cancellation and config extension patterns |
| Phase 10 = Tag Editing after shortcuts | Introduces 3 new deps, file-write-DB-event pipeline; benefits from validated patterns |
| Phase 11 = Smart Playlists after tags | DB patterns, benefits from validated DB update pipeline |
| Phase 12 = Gapless mid-sequence | Highest risk isolated after foundations proven, before meta-features |
| Phase 13 = MusicBrainz after gapless | First network feature, orthogonal to audio work |
| Phase 14 = Layout + Plugins last | Meta-features that wrap all others, need stable API surface |
| Layout + Plugins combined into one phase | Both are extensibility foundations; layout provides component registry that plugins register into |
### Warnings (carry forward)
- Player lock ordering (`p.mu` before `speaker.Lock()`, goroutine dispatch in beep callback) — CRITICAL for Phase 12 gapless work
- modernc.org/libc version must match exactly when updating modernc.org/sqlite
- `@lit-labs/signals` is experimental (v0.2.0) — not blocking but noted
- Tag writing: block edits on currently-playing files (beep holds `*os.File` handle) — Phase 10
- Scan cancellation: skip orphan cleanup on cancelled scans — Phase 9 ✅ (implemented in 09-01)
- MusicBrainz: strict 1 req/s rate limit, proper User-Agent, SQLite cache — Phase 13
- Plugin system: JS-only for v1.1, recover() wrappers, read-only DB access — Phase 14
- FLAC tag writes load entire file into memory (go-flac) — acceptable for v1.1 — Phase 10
### Research Flags
- **Phase 12 (Gapless + Crossfade):** Needs deeper research — beep Mixer/Seq composition for real-time crossfade not well-documented. Prototype persistent-mixer architecture before committing to implementation.
- **Phase 14 (Plugin System):** Needs deeper research — plugin API surface design, error containment, security boundaries. Consider spike/prototype.
## Session Continuity
### Last Session
**Date:** 2026-03-07
**What happened:** Executed 09-03-PLAN.md — scan control UI. Added Pause/Resume/Cancel buttons and confirmation dialog to config page, wired to backend scan control Wails bindings.
**Where we stopped:** Completed 09-03-PLAN.md
**Next action:** `/gsd-execute-phase 9` — Execute Plan 04 (keyboard shortcut UI)
---
*State initialized: 2026-02-27*
Last activity: 2026-03-07 - Completed 09-03 scan control UI
*Last updated: 2026-03-07*