Getting it into your agent
This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.
/plugin marketplace add kennethleungty/claude-music/plugin install claude-musicWrote 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/kennethleungty/claude-music/prev)<a href="https://agentmods.dev/skills/kennethleungty/claude-music/prev"><img src="https://agentmods.dev/badge/skills/kennethleungty/claude-music/prev/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/kennethleungty/claude-music/prev"><img src="https://agentmods.dev/badge/skills/kennethleungty/claude-music/prev.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 | $0.00013 | $0.00186 |
| Opus 5 | $0.00006 | $0.00093 |
| Sonnet 5 | $0.00003 | $0.00037 |
| Haiku 4.5 | $0.00001 | $0.00019 |
Grade A, and why
prev scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 11d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
This skill is part of the claude-music plugin. Only invoke when the user explicitly uses the slash command.
Previous Station
Go back to the previous radio station.
Run "${CLAUDE_PLUGIN_ROOT}/scripts/music-controller.sh" prev.
The JSON response includes genre and station fields. Use both in your reply:
- If
"status": "playing": ♪ Now playing {genre} — {station} ♪ - If
"status": "error": ♪ No previous station — try/nextfirst, then/prevto go back. ♪ - If nothing playing: ♪ Nothing playing — try
/playto start. ♪
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.
- 11d ago First seen · 23 lines · 13 tokens per session scan A ed02de24b80d
prev is a skill published in the GitHub repository kennethleungty/claude-music (21 stars, last pushed 5mo ago), licensed MIT. It adds 13 tokens to every session and 186 once invoked, about $0.0001 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.
Other skills, from other repositories
metaschedule
MetaBot's persistent server-side scheduler (cron + one-shot). Optional skill — not installed by default. Use when the user wants tasks that survive Claude session restarts, are visible to other bots, or need to run in MetaBot's PM2 process rather than this Claude session.
metabot-team
Use for the MetaBot Agent Teams CLI: create and inspect durable Teams, spawn teammates, exchange messages, and manage Tasks and Runs across Sessions.
metabot
Unified MetaBot CLI for personal Memory, Skill Hub, durable Agent Bus messaging, agent registry, Agent Teams, T5T, scheduling, and bridge runtime operations.
metaskill
The meta-skill: create AI agent teams, individual agents, or custom skills for any project. Use when the user wants to generate a complete agent team, create a single agent, or create a single skill for Claude Code, Kimi, or Codex.
test-writer
Generate comprehensive tests including unit, integration, and property-based tests.
error-diagnosis
Debug errors, analyze logs, identify root causes, and suggest fixes.