yellowjacket/.planning/STATE.md

gsd_state_version, milestone, milestone_name, status, last_updated, progress

gsd_state_version	milestone	milestone_name	status	last_updated	progress
1.0	v1.1	Features & Extensibility	in_progress	2026-03-07	total_phases completed_phases total_plans completed_plans 6 0 5 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)

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State initialized: 2026-02-27 Last activity: 2026-03-07 - Completed 09-03 scan control UI Last updated: 2026-03-07