JUCE Plugin Starter

JUCE Plugin Starter is a skill for Claude Code from danielraffel/generous-corp-marketplace. It costs 140 tokens per session (3,116 once invoked), scanned B, original, MIT.

A starter template for creating cross-platform audio plug-ins with JUCE, a C++ framework for audio software.

In plain words
What is it for?
Use it to create AU, AUv3, VST3, CLAP, or standalone plug-ins, configure project names and identifiers, build with CMake, generate Xcode projects, and optionally add the Visage user interface library.
Why use it?
It provides the project setup and build scripts needed to begin a plug-in project without configuring every platform manually.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is ./scripts/generate_and_open_xcode.sh.

Part of the juce-dev plugin — 3 skills, 10 commands shipped together

Good fit Use it to create AU, AUv3, VST3, CLAP, or standalone plug-ins, configure project names and identifiers, build with CMake, generate Xcode projects, and optionally add the Visage user interface library.

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/danielraffel/generous-corp-marketplace
agentmods
npx agentmods add skills/danielraffel/generous-corp-marketplace/juce-starter

Made for: Claude Code.

Or install juce-dev, the plugin that ships this one along with the rest of its 3 skills, 10 commands.

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 JUCE Plugin Starter

README.md
[![agentmods](https://agentmods.dev/badge/skills/danielraffel/generous-corp-marketplace/juce-starter/github.svg)](https://agentmods.dev/skills/danielraffel/generous-corp-marketplace/juce-starter)
Your own site
<a href="https://agentmods.dev/skills/danielraffel/generous-corp-marketplace/juce-starter"><img src="https://agentmods.dev/badge/skills/danielraffel/generous-corp-marketplace/juce-starter/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 JUCE Plugin Starter

Your own site · 80×15
<a href="https://agentmods.dev/skills/danielraffel/generous-corp-marketplace/juce-starter"><img src="https://agentmods.dev/badge/skills/danielraffel/generous-corp-marketplace/juce-starter.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 140 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,116 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin original 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 $0.00140 $0.03116
Opus 5 $0.00070 $0.01558
Sonnet 5 $0.00028 $0.00623
Haiku 4.5 $0.00014 $0.00312

Measured 12d ago against content hash c926617dd56a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade B, and why

JUCE Plugin Starter scanned grade B with 1 finding 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.

Asks for rootmediumPrivilege escalation

A mod that escalates privileges can change anything on the machine, not only the project.

# Install deps: sudo apt install cmake ninja-build clang libasound2-dev libx11-dev libxinerama-dev libxext-dev libxrandr-dev libxcursor-dev libfreetype6-dev libwebkit2gtk-4.1-dev libglu1-mesa-dev libcurl4-openssl-dev pkg
plugins/juce-dev/skills/juce-starter/SKILL.md · 275 lines

How it starts

The opening of the file, as written. The whole thing — 275 lines — stays where its author put it; the contents beside it link to each section on GitHub.

JUCE-Plugin-Starter Template Reference

Overview

JUCE-Plugin-Starter is a cross-platform template for creating audio plugin projects (AU, AUv3, VST3, CLAP, Standalone). It provides a CMake-based build system, automatic versioning, code signing, and optional Visage GPU UI integration.

Supported platforms:

  • macOS: AU, AUv3, VST3, CLAP, Standalone (Xcode or Ninja)
  • Windows: VST3, CLAP, Standalone (MSVC + Ninja)
  • Linux: VST3, CLAP, Standalone (Clang + Ninja)

Template Structure

JUCE-Plugin-Starter/
├── Source/
│   ├── PluginProcessor.h/cpp    # Audio processing (CLASS_NAME_PLACEHOLDERAudioProcessor)
│   └── PluginEditor.h/cpp       # UI (CLASS_NAME_PLACEHOLDERAudioProcessorEditor)
├── templates/
│   └── visage/
│       ├── PluginEditor.h       # Visage-enabled editor template
│       └── PluginEditor.cpp     # Uses visage::ApplicationWindow + juce::Timer
├── scripts/
│   ├── init_plugin_project.sh   # Interactive project creation
│   ├── generate_and_open_xcode.sh  # CMake → Xcode build
│   ├── build.sh                 # Command-line build (au/auv3/vst3/clap/standalone)
│   ├── setup_visage.sh          # Clone Visage + apply patches
│   ├── post_build.sh            # Info.plist version updates
│   ├── sign_and_package_plugin.sh  # Code signing + notarization
│   └── patches/visage/          # Visage patch files
├── tests/
│   ├── Catch2Main.cpp           # Custom main with JUCE MessageManager init
│   ├── PluginBasics.cpp         # Example plugin tests
│   └── helpers/test_helpers.h   # Helper for editor-context testing
├── CMakeLists.txt               # Build configuration
├── .clang-format                # JUCE-style code formatting (Allman, 4-space, C++17)
├── .env                         # Developer + project settings
└── .env.example                 # Settings reference with defaults

Placeholder System

The template uses 9 placeholders that get replaced during project creation:

Placeholder Derived From Example
PLUGIN_NAME_PLACEHOLDER User input "My Cool Synth"
CLASS_NAME_PLACEHOLDER Plugin name, non-alphanumeric removed "MyCoolSynth"
PROJECT_FOLDER_PLACEHOLDER Plugin name, lowercased with hyphens "my-cool-synth"
BUNDLE_ID_PLACEHOLDER com.{namespace}.{project-folder} "com.generouscorp.my-cool-synth"
DEVELOPER_NAME_PLACEHOLDER User input "Generous Corp"
PLUGIN_MANUFACTURER_PLACEHOLDER Same as developer name "Generous Corp"
NAMESPACE_PLACEHOLDER Developer name, lowercase alphanumeric "generouscorp"
PLUGIN_CODE_PLACEHOLDER 4-letter code from plugin name "MYCO"
PLUGIN_MANUFACTURER_CODE_PLACEHOLDER 4-letter code from developer name "GECO"

Read the full file on GitHub · 275 lines

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. 12d ago First seen · 275 lines · 140 tokens per session scan B c926617dd56a

Subscribe to this mod's changes

JUCE Plugin Starter is a skill published in the GitHub repository danielraffel/generous-corp-marketplace (11 stars, last pushed 13d ago), licensed MIT. It adds 140 tokens to every session and 3,116 once invoked, about $0.0007 per session on Opus 5. A static security scan graded it B with 1 finding (asks for root). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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