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Agent skill

Music Master

by ruvnet in ruvnet/ruflo

Run a mastering pass (LUFS loudness normalization + peak limiting) on an existing production

MITAuto-check passedDatabases

Install Music Master

skills CLI
$ npx skills add ruvnet/ruflo --skill music-master -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install ruvnet/ruflo music-master --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/ruvnet/ruflo.git skills-src && mkdir -p .claude/skills && cp -r skills-src/plugins/ruflo-music/skills/music-master .claude/skills/music-master && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
music-master
GitHub stars
74k
Token cost
~270 tokens
SKILL.md length
103 words
Files
1
Skills in repo
264
Repo updated
First seen
Licence
MIT

At a glance

Run a mastering pass (LUFS loudness normalization + peak limiting) on an existing production

  • Works in 4 steps: Call mcpcogmusicmaster({ id: "" }). → The result includes lufs_before and… → Update the cached entry in… → …
  • Tasks that involve Database schema design
  • SKILL.md covers When to use and Steps
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Music Master is an agent skill from ruvnet/ruflo. Run a mastering pass (LUFS loudness normalization + peak limiting) on an existing production

Its SKILL.md is about 270 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Databases, covering Database schema design. The repository describes itself as: 🌊 The original agent harness. Deploy intelligent multi-player swarms, coordinate autonomous workflows, and build conversational AI systems. Features adaptive memory…. The licence is MIT.

When your agent uses it

  • Tasks that involve Database schema design

Example prompts

  • “/music-master”

Requirements

  • Pre-approved tools (allowed-tools): mcp__cogmusic__master, mcp__cogmusic__get_production, mcp__plugin_ruflo-core_ruflo__memory_store

Workflow steps

4 steps, taken from the first numbered list in SKILL.md.

  1. Call mcpcogmusicmaster({ id: "" }).
  2. The result includes lufs_before and lufs_after — report both so the user can see the actual loudness change, not just "done."
  3. Update the cached entry in music-productions (if one exists) with the new lufs_before/lufs_after/has_mastered: true fields so later…
  4. Mastered audio isn't returned inline over MCP — point the user at the dashboard. See ADR-0001.

What it can do on your machine

Read from SKILL.md and the folder at commit 58e0ae7. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves these tools, so the agent can use them without asking each time:

    • mcp__cogmusic__master
    • mcp__cogmusic__get_production
    • mcp__plugin_ruflo-core_ruflo__memory_store

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Music Master loads about 270 tokens when it runs. Until then it costs about 26 tokens; SKILL.md has 103 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~26
When it runs · the whole SKILL.md, loaded when a task matches
~270

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from ruvnet/ruflo at commit 58e0ae7, republished under its MIT licence (© ruvnet). 103 words, ~270 tokens.

Download SKILL.mdSave it as .claude/skills/music-master/SKILL.md (or your agent's skills folder).
name
music-master
description
Run a mastering pass (LUFS loudness normalization + peak limiting) on an existing production
allowed-tools
mcp__cogmusic__master, mcp__cogmusic__get_production, mcp__plugin_ruflo-core_ruflo__memory_store
argument-hint
<production-id>

Music Master

Applies loudness normalization (default target -14 LUFS, common streaming-platform standard) plus a peak limiter to an already-generated production.

When to use

The user wants a "radio-ready" or streaming-normalized version of a track they've already generated.

Steps

  1. Call mcp__cogmusic__master({ id: "<production-id>" }).
  2. The result includes lufs_before and lufs_after — report both so the user can see the actual loudness change, not just "done."
  3. Update the cached entry in music-productions (if one exists) with the new lufs_before/lufs_after/has_mastered: true fields so later lookups don't need a round-trip.
  4. Mastered audio isn't returned inline over MCP — point the user at the dashboard. See ADR-0001.

© ruvnet, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in plugins/ruflo-music/skills/music-master of ruvnet/ruflo.

Open the folder on GitHubat commit 58e0ae7

Compare with similar skills

Music Master next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Music Master compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Music Master this skillruvnet/ruflo74k—~270Automated safety check: PassMIT
SQL Optimization Patternsynulihao/AgentSkillOS61711 repos~3.3kAutomated safety check: PassNone
Datamodellmnimbalyst/nimbalyst1.9k—~713Automated safety check: PassMIT
Add Mpk Taskmirage-project/mirage2.5k—~4.5kAutomated safety check: PassApache-2.0
B200 Flash Attention4 Plannermirage-project/mirage2.5k—~1.9kAutomated safety check: PassApache-2.0
Experiment Auditwanshuiyin/Auto-claude-code-research-in-sleep17k1 repos~2.7kAutomated safety check: NotesMIT

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Categories

Questions about Music Master

What does Music Master do?

Run a mastering pass (LUFS loudness normalization + peak limiting) on an existing production. Music Master is an agent skill from ruvnet/ruflo.

When should I use Music Master?

Music Master fits situations like: tasks that involve Database schema design.

How do I install Music Master in Claude Code?

Run `npx skills add ruvnet/ruflo --skill music-master -a claude-code`. Or copy the skill folder (plugins/ruflo-music/skills/music-master in ruvnet/ruflo) into .claude/skills/music-master in your project. Claude Code loads it when a task matches its description.

How do I install Music Master in Codex?

Run `npx skills add ruvnet/ruflo --skill music-master -a codex`. Or copy the skill folder (plugins/ruflo-music/skills/music-master in ruvnet/ruflo) into .agents/skills/music-master in your project. Codex loads it when a task matches its description.

Can I use Music Master in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add ruvnet/ruflo --skill music-master -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/music-master, .gemini/skills/music-master, .github/skills/music-master and .opencode/skills/music-master in your project.

What does Music Master need to run?

SKILL.md names no scripts, command-line tools or credentials: Music Master is instructions for the agent only. Its frontmatter pre-approves these tools: mcp__cogmusic__master, mcp__cogmusic__get_production, mcp__plugin_ruflo-core_ruflo__memory_store.

Does Music Master access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Music Master safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Music Master use?

Music Master is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Music Master use?

About 270 tokens (SKILL.md is roughly 1.1k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Music Master?

Skills that share tags, products or a category with Music Master: SQL Optimization Patterns (ynulihao/AgentSkillOS, 617 stars), Datamodellm (nimbalyst/nimbalyst, 1.9k stars), Add Mpk Task (mirage-project/mirage, 2.5k stars) and B200 Flash Attention4 Planner (mirage-project/mirage, 2.5k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Music Master?

ruvnet (a GitHub user) maintains it in ruvnet/ruflo, which has 74,159 GitHub stars. The repository holds 264 skills in this directory. The repository was last updated on October 9, 2026.

Source: ruvnet/ruflo on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.