Music Player

Library, queue and playback that behaves when the network or the file does not.

18 capabilities 2 sections reference specification

Build against it

# give your agent the catalog — no account, no install
claude mcp add provespec -- npx -y provespec-mcp

# then, from any agent session
spec_get(slug: "music-player")                → the capability tree
spec_checklist(slug: "music-player")          → the questions to answer
spec_grade(slug: "music-player", grades: [...])  → parity % + the gap list

# or just fetch it
curl https://provespec.com/catalog/music-player/spec.json

Grade every capability below as yes · partial · no · na, with a file reference as evidence. Whatever you leave ungraded counts as missing — the gap list is the work queue.

Or just paste this to your agent

Use the ProveSpec MCP server. Fetch the "music-player" spec with
spec_get, then walk spec_checklist and grade this repository against it —
one verdict per capability, each with a file reference as the note.
Call spec_grade with the results and give me the gap list as the plan.

If the server is not registered, add it first:
  claude mcp add provespec -- npx -y provespec-mcp

The specification

AI 14

Library

✓ Scan and index files with metadata ID3, Vorbis comments
✓ Album, artist, album-artist and compilation handling the compilation problem
✓ Artwork extracted or fetched
✓ Detect moved, renamed and deleted files

Playback

✓ Gapless playback between tracks
✓ Crossfade and replay gain
✓ Seek, speed and format support FLAC, MP3, AAC, Opus
✓ Output device selection and change without stopping

Queue

✓ Play next, add to queue, and a visible up-next list
✓ Shuffle that does not repeat until exhausted true shuffle, not random
✓ Repeat one, repeat all

Playlists

✓ Create, reorder, and smart playlists from rules

State

✓ Resume where playback stopped, after restart
✓ Play counts and last-played recorded

UI 4

Now playing

✓ Artwork, position, remaining time, waveform or scrubber

Controls

✓ Media keys and OS-level integration

Browse

✓ Search across library with instant results
✓ Keyboard navigation throughout

Download spec.json All 85 specs