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/volume)<a href="https://agentmods.dev/skills/kennethleungty/claude-music/volume"><img src="https://agentmods.dev/badge/skills/kennethleungty/claude-music/volume/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/volume"><img src="https://agentmods.dev/badge/skills/kennethleungty/claude-music/volume.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 | $0.00016 | $0.00186 |
| Opus 5 | $0.00008 | $0.00093 |
| Sonnet 5 | $0.00003 | $0.00037 |
| Haiku 4.5 | $0.00002 | $0.00019 |
Grade A, and why
volume 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 12d 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.
Volume
Adjust music volume (0-100), or up/down to adjust by 10.
- If
$ARGUMENTSis empty: run"${CLAUDE_PLUGIN_ROOT}/scripts/music-controller.sh" status→ ♪ Volume: {volume}/100 ♪ - If
up,down, or a number: run"${CLAUDE_PLUGIN_ROOT}/scripts/music-controller.sh" volume-adjust $ARGUMENTS→ use themessagefield from the JSON output verbatim: ♪ {message} ♪
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.
- 12d ago First seen · 18 lines · 16 tokens per session scan A 958c63d7b0bb
volume is a skill published in the GitHub repository kennethleungty/claude-music (22 stars, last pushed 5mo ago), licensed MIT. It adds 16 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
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Use for the MetaBot Agent Teams CLI: create and inspect durable Teams, spawn teammates, exchange messages, and manage Tasks and Runs across Sessions.
metabot
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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.