leadsheet

leadsheet is a skill for Claude Code, Codex from Niraj-Kamdar/leadsheet. It costs 77 tokens per session (6,103 once invoked), scanned A, original, AGPL-3.0.

A skill for composing playable music, including chord progressions, bass lines, melodies, and drum patterns. It saves the result as an audio output using the available local music service.

In plain words
What is it for?
Use it to create songs, chord progressions, backing tracks, melodies, drum beats, jingles, or other original musical arrangements.
Why use it?
It turns a musical idea into an arranged piece that can be listened to, rather than only describing notes or harmony in text.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/niraj-kamdar/leadsheet/skill
Any agent
npx skills add Niraj-Kamdar/leadsheet --skill skill
Clone the repo
git clone --depth 1 https://github.com/Niraj-Kamdar/leadsheet

Made for: Claude Code, Codex.

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 leadsheet

README.md
[![agentmods](https://agentmods.dev/badge/skills/niraj-kamdar/leadsheet/skill.svg)](https://agentmods.dev/skills/niraj-kamdar/leadsheet/skill)
Your own site
<a href="https://agentmods.dev/skills/niraj-kamdar/leadsheet/skill"><img src="https://agentmods.dev/badge/skills/niraj-kamdar/leadsheet/skill.svg" alt="Measured on agentmods" height="20"></a>
Per session 77 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 6,103 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00077 $0.06103
Opus 5 $0.00039 $0.03052
Sonnet 5 $0.00015 $0.01221
Haiku 4.5 $0.00008 $0.00610

Measured 5d ago against content hash 63ed0f2b7e36, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

leadsheet 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 5d 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.

src/leadsheet/skill/SKILL.md · 386 lines

The source is not reproduced here

Licensed AGPL-3.0

The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 5d ago First seen · 386 lines · 77 tokens per session scan A 63ed0f2b7e36

Subscribe to this mod's changes

leadsheet is a skill published in the GitHub repository Niraj-Kamdar/leadsheet (1 stars, last pushed 1mo ago), licensed AGPL-3.0. It adds 77 tokens to every session and 6,103 once invoked, about $0.0004 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.

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