strudel SKILL.md skillA

strudel from ahgraber/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add ahgraber/skills/strudel@git:20260515.0eea0e4

Pins git:20260515.0eea0e4 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
ahgraber/skills
Path
skills/strudel/SKILL.md
Versions recorded
1
Latest version
git:20260515.0eea0e4, committed May 15, 2026
Size
4,952 bytes
Repository stars
6
License
CC0-1.0

Use when writing, debugging, or explaining Strudel live-coding music patterns — mini-notation syntax, pattern functions (fast/slow/every/off/stack), synth/sample selection, audio effects, scale/chord/voicing API, or EDM production recipes. Triggers: "write a Strudel pattern", "how do I make a bassline in Strudel", "what does .every() do", "strudel drum beat", "strudel chord voicing", any Strudel code question.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Strudel

Reference skill for programming music with [Strudel](https://strudel.cc) — a JavaScript live-coding environment based on TidalCycles patterns, running in-browser.

## Core Concepts

**Cycle** — the fundamental time unit (~2 seconds at the default 30 cpm).
All events fit within cycles; adding events makes each shorter, not the total longer.
One cycle = one bar of 4/4 at the default tempo.

**Pattern** — a pure function from time to events.
Everything is a pattern.
Transforming a pattern wraps it; the original is unchanged.

**Mini-notation** — a DSL written inside `"double quotes"` (single-line) or `` `backticks` `` (multi-line).
Single quotes `'...'` are plain JS strings and are NOT parsed as patterns.

**Chaining** — methods chain left-to-right: `note("c e g").s("piano").lpf(800).room(0.4)`.

**`$:` tracks** — the REPL syntax for parallel patterns.
Each `$:` line is an independent stream.
`_$:` mutes a track.
Outside the REPL, use `stack(...)`.

## Quick Start

```js
// First sound
s("bd sd hh cp")

// First note
note("c3 e3 g3 a3").s("piano")

// Stack drum + melody
stack(
  s("bd*4, ~ cp ~ cp, hh*8"),
  note("<c3 eb3 g3 bb3>/4").s("piano").room(0.4)
)
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add ahgraber/skills/strudel@sha256:b90d74733084039f

The line at the top of this page pins the label git:20260515.0eea0e4, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_a3tambmwfucsej44.svg)](https://markdownregistry.com/a/art_a3tambmwfucsej44)

3 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 1 version of this file, committed on May 15, 2026.

versioncommittedcommitsizeaudit
git:20260515.0eea0e4 latest2026-05-15 0eea0e4 4,952 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (4952 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

ahgraber/skills · 6 stars · license CC0-1.0 · pushed 2026-10-29 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_a3tambmwfucsej44
GET https://markdownregistry.com/api/v1/resolve?ref=ahgraber/skills/strudel
GET https://markdownregistry.com/api/v1/blob/b90d74733084039ffbf2957f34d9cb365743b98f016979a491c71cc78ced4586

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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