Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add skills/pwittchen/spotify-cli-macos/spotifynpx skills add pwittchen/spotify-cli-macos --skill spotifygit clone --depth 1 https://github.com/pwittchen/spotify-cli-macosWhat it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00084 | $0.00670 |
| Opus 5 | $0.00042 | $0.00335 |
| Sonnet 5 | $0.00017 | $0.00134 |
| Haiku 4.5 | $0.00008 | $0.00067 |
Grade A, and why
spotify scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 3d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 52 lines — stays where its author put it; the contents beside it link to each section on GitHub.
spotify
Wrapper skill for the spotifycli shell tool, which drives Spotify on macOS through AppleScript (osascript).
Prerequisites
- macOS with the Spotify desktop app installed.
spotifycliavailable on PATH. Ifcommand -v spotifyclireturns nothing, tell the user to runmake installin the spotify-cli-macos repo and stop — do not fall back to invoking AppleScript directly.
Commands
Invoke via Bash as spotifycli <command>:
| Command | Effect |
|---|---|
activate |
Bring Spotify to the foreground (launches it if not running). |
status |
Prints running or off. |
play |
Start playback. |
pause |
Pause playback. |
playpause |
Toggle play/pause. |
next |
Skip to next track. |
prev |
Go to previous track (the underlying script calls it twice so it actually moves back instead of restarting the current track). |
restart |
Seek current track to position 0. |
track |
Print <song> - <artist> for the current track. |
quit |
Quit the Spotify app. |
help |
Print usage. |
How to use
- Map natural-language requests to the matching command. Examples:
- "what's playing" / "what song is this" →
spotifycli track - "pause" / "stop the music" →
spotifycli pause - "skip" / "next song" →
spotifycli next - "go back" / "previous track" →
spotifycli prev - "restart this song" →
spotifycli restart - "is Spotify running" →
spotifycli status - "open Spotify" →
spotifycli activate - "close Spotify" →
spotifycli quit
- "what's playing" / "what song is this" →
- For ambiguous requests like "play X" where X is a song/artist/playlist name, this tool cannot search or queue — explain the limitation. It only controls the currently loaded track.
- Before
play,pause,next,prev,track, orrestart, runspotifycli statusif there's any chance Spotify isn't running; the AppleScript commands will launch Spotify implicitly buttrackagainst a stopped app returns nothing useful. quitcloses the user's music app — confirm with the user before running it unless they asked explicitly.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 3d ago First seen · 52 lines · 84 tokens per session scan A 86d88f786f90
spotify is a skill published in the GitHub repository pwittchen/spotify-cli-macos (24 stars, last pushed 3mo ago), licensed Apache-2.0. It adds 84 tokens to every session and 670 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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