music-analyzer: Skill for Claude Code

.claude/skills/music-tonality/SKILL.md

music-tonality is a skill for Claude Code from BENZEMA216/music-analyzer. It costs 16 tokens per session (318 once invoked), scanned A, original, no licence file.

A music-analysis tool that identifies a piece's key, chord sequence, and the shape of its melody. Tonality describes how a piece is organised around a musical key.

In plain words
What is it for?
Use it to detect keys, analyse chord progressions, and study how melodies rise and fall.
Why use it?
It helps turn musical audio or notation into information that can be examined instead of relying only on listening.

Skill for Claude Code

Written for Claude Code: user-invocable in frontmatter.

This is BENZEMA216/music-analyzer's own configuration. It tells Claude Code how to work on music-analyzer itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything music-analyzer configures →

Part of the music-analyzer plugin — 9 skills shipped together

Reuse

Borrowing it

Nothing to install: this file belongs to BENZEMA216/music-analyzer. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/BENZEMA216/music-analyzer/main/.claude/skills/music-tonality/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/BENZEMA216/music-analyzer

Made for: Claude Code.

Or install music-analyzer, the plugin that ships this one along with the rest of its 9 skills.

Wrote 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.

agentmods badge for music-tonality

README.md
[![agentmods](https://agentmods.dev/badge/skills/benzema216/music-analyzer/music-tonality/github.svg)](https://agentmods.dev/skills/benzema216/music-analyzer/music-tonality)
Your own site
<a href="https://agentmods.dev/skills/benzema216/music-analyzer/music-tonality"><img src="https://agentmods.dev/badge/skills/benzema216/music-analyzer/music-tonality/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.

agentmods 80×15 button for music-tonality

Your own site · 80×15
<a href="https://agentmods.dev/skills/benzema216/music-analyzer/music-tonality"><img src="https://agentmods.dev/badge/skills/benzema216/music-analyzer/music-tonality.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 16 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 318 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00016 $0.00318
Opus 5 $0.00008 $0.00159
Sonnet 5 $0.00003 $0.00064
Haiku 4.5 $0.00002 $0.00032

Measured 12d ago against content hash 0473c81246eb, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

music-tonality 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.

.claude/skills/music-tonality/SKILL.md · 46 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

Changes

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.

  1. 12d ago First seen · 46 lines · 16 tokens per session scan A 0473c81246eb

Subscribe to this mod's changes

music-tonality is a skill published in the GitHub repository BENZEMA216/music-analyzer (7 stars, last pushed 5mo ago), with no licence file. It adds 16 tokens to every session and 318 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 2026-08-31.