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 skills add davidtoby/agent-skills --skill spotifygit clone --depth 1 https://github.com/davidtoby/agent-skillsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/davidtoby/agent-skills/spotify)<a href="https://agentmods.dev/skills/davidtoby/agent-skills/spotify"><img src="https://agentmods.dev/badge/skills/davidtoby/agent-skills/spotify/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/davidtoby/agent-skills/spotify"><img src="https://agentmods.dev/badge/skills/davidtoby/agent-skills/spotify.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What 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 5.1 | $0.00015 | $0.01652 |
| Opus 5 | $0.00008 | $0.00826 |
| Sonnet 5 | $0.00003 | $0.00330 |
| Haiku 4.5 | $0.00002 | $0.00165 |
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 5d 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.
This is a copy
100% identical to spotify — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 135 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Spotify
Control the user's Spotify account via the Hermes Spotify toolset (7 tools). Setup guide: https://hermes-agent.nousresearch.com/docs/user-guide/features/spotify
When to use this skill
The user says something like "play X", "pause", "skip", "queue up X", "what's playing", "search for X", "add to my X playlist", "make a playlist", "save this to my library", etc.
The 7 tools
spotify_playback— play, pause, next, previous, seek, set_repeat, set_shuffle, set_volume, get_state, get_currently_playing, recently_playedspotify_devices— list, transferspotify_queue— get, addspotify_search— search the catalogspotify_playlists— list, get, create, add_items, remove_items, update_detailsspotify_albums— get, tracksspotify_library— list/save/remove withkind: "tracks"|"albums"
Playback-mutating actions require Spotify Premium; search/library/playlist ops work on Free.
Canonical patterns (minimize tool calls)
"Play <artist/track/album>"
One search, then play by URI. Do NOT loop through search results describing them unless the user asked for options.
spotify_search({"query": "miles davis kind of blue", "types": ["album"], "limit": 1})
→ got album URI spotify:album:1weenld61qoidwYuZ1GESA
spotify_playback({"action": "play", "context_uri": "spotify:album:1weenld61qoidwYuZ1GESA"})
For "play some " (no specific song), prefer types: ["artist"] and play the artist context URI — Spotify handles smart shuffle. If the user says "the song" or "that track", search types: ["track"] and pass uris: [track_uri] to play.
"What's playing?" / "What am I listening to?"
Single call — don't chain get_state after get_currently_playing.
spotify_playback({"action": "get_currently_playing"})
If it returns 204/empty (is_playing: false), tell the user nothing is playing. Don't retry.
"Pause" / "Skip" / "Volume 50"
Direct action, no preflight inspection needed.
spotify_playback({"action": "pause"})
spotify_playback({"action": "next"})
spotify_playback({"action": "set_volume", "volume_percent": 50})
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.
- 5d ago First seen · 135 lines · 15 tokens per session scan A 43789e51e3ce
spotify is a skill published in the GitHub repository davidtoby/agent-skills (10 stars, last pushed 1mo ago), licensed MIT. It adds 15 tokens to every session and 1,652 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to spotify, differing in 0 lines, and is treated as a copy.
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