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/mood)<a href="https://agentmods.dev/skills/kennethleungty/claude-music/mood"><img src="https://agentmods.dev/badge/skills/kennethleungty/claude-music/mood/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/mood"><img src="https://agentmods.dev/badge/skills/kennethleungty/claude-music/mood.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 | $0.00017 | $0.00454 |
| Opus 5 | $0.00009 | $0.00227 |
| Sonnet 5 | $0.00003 | $0.00091 |
| Haiku 4.5 | $0.00002 | $0.00045 |
Grade A, and why
mood scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 11d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
This skill is part of the claude-music plugin. Only invoke when the user explicitly uses the slash command.
Mood
The user describes their mood, feeling, or what kind of music they want in their own words. The DJ interprets it and picks the best genre.
Instructions
The user said: "$ARGUMENTS"
Based on this, pick the best genre and station, then play it immediately. Do NOT spawn an agent or delegate.
Step 1: Read genres and match mood
Read the genre metadata from sources.yml:
python3 -c "
import sys
try:
import yaml
with open('${CLAUDE_PLUGIN_ROOT}/config/sources.yml') as f:
data = yaml.safe_load(f)
except ImportError:
sys.exit(1)
for genre, info in data.items():
print(f'{genre}:')
for s in info.get('stations', []):
tags = ', '.join(s.get('tags', []))
print(f' - {s[\"name\"]}: {s.get(\"description\", \"\")}')
print(f' tags: {tags}')
print()
"
Using the tags and descriptions, match the user's mood to the best genre.
Step 2: Play it
Pick a specific station name from the matched genre, then:
"${CLAUDE_PLUGIN_ROOT}/scripts/music-controller.sh" play "<station name>"
Step 3: Respond
Return a message in EXACTLY this format:
♪ Now playing {genre} — {station name}. {one-liner reason tied to the mood} ♪
- If
takeoveristruein the JSON output: prefix with Switched over from another session — - If error about no audio player: run the
install_command(ifhas_sudois true) ornosudo_hint(if false) from the JSON, then retry play automatically.
Keep it to one line. Do not explain your reasoning.
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 · 63 lines · 17 tokens per session scan A 7486de95038d
mood is a skill published in the GitHub repository kennethleungty/claude-music (21 stars, last pushed 5mo ago), licensed MIT. It adds 17 tokens to every session and 454 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.
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