faust

faust is a skill for Claude Code, Codex from Generous-Corp/pulp. It costs 29 tokens per session (1,513 once invoked), scanned A, original, MIT.

Create FAUST DSP plugins in Pulp using offline codegen, pre-generated C++ headers, and the FaustProcessor template wrapper.

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/generous-corp/pulp/faust
Any agent
npx skills add Generous-Corp/pulp --skill faust
Clone the repo
git clone --depth 1 https://github.com/Generous-Corp/pulp

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 faust

README.md
[![agentmods](https://agentmods.dev/badge/skills/generous-corp/pulp/faust.svg)](https://agentmods.dev/skills/generous-corp/pulp/faust)
Your own site
<a href="https://agentmods.dev/skills/generous-corp/pulp/faust"><img src="https://agentmods.dev/badge/skills/generous-corp/pulp/faust.svg" alt="Measured on agentmods" height="20"></a>
Per session 29 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,513 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00029 $0.01513
Opus 5 $0.00015 $0.00757
Sonnet 5 $0.00006 $0.00303
Haiku 4.5 $0.00003 $0.00151

Measured today against content hash 357b597c0582, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

faust 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 today.

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.

.agents/skills/faust/SKILL.md · 166 lines

How it starts

The opening of the file, as written. The whole thing — 166 lines — stays where its author put it; the contents beside it link to each section on GitHub.

FAUST DSL

Use this skill when a task involves writing, generating, or testing FAUST-based processors in Pulp.

Truthful Position

Pulp supports FAUST as an offline codegen DSL. The FAUST compiler is an optional external tool; pre-generated C++ is checked into the source tree so builds work without a FAUST installation.

Supported now:

  • .dsp source files with offline codegen to C++ headers
  • FaustProcessor<T> template that bridges any FAUST-generated dsp subclass into Pulp's Processor model
  • automatic parameter reflection from FAUST buildUserInterface() into StateStore
  • bus layout detection from getNumInputs() / getNumOutputs()
  • metadata extraction (name, author, version) into PluginDescriptor
  • CMake integration via PulpFaust.cmake (pulp_faust_generate, pulp_add_faust_test)
  • three working examples: gain, filter, tremolo

Not supported by this skill:

  • FAUST MIDI mapping
  • FAUST polyphony / declare options "[midi:on][nvoices:N]"
  • runtime JIT compilation
  • @gfx / FAUST GUI — FaustProcessor reports has_editor() = false
  • soundfile support

Core Files

File Purpose
core/dsl/include/pulp/dsl/faust_base.hpp Self-contained FAUST base classes (dsp, UI, Meta)
core/dsl/include/pulp/dsl/faust_processor.hpp FaustProcessor<T> template and PulpFaustUI
core/dsl/include/pulp/dsl/dsl_processor.hpp DslProcessor base class shared across DSL lanes
tools/cmake/PulpFaust.cmake CMake module: pulp_faust_generate(), pulp_add_faust_test()
examples/faust-gain/ Stereo gain — simplest FAUST example
examples/faust-filter/ Parametric filter example
examples/faust-tremolo/ Tremolo with rate/depth

How It Works

FAUST offline codegen produces a C++ class derived from ::dsp. Pulp provides self-contained base classes in faust_base.hpp so the generated code compiles without the FAUST architecture headers. FaustProcessor<T> wraps the generated class:

Read the full file on GitHub · 166 lines

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. today First seen · 166 lines · 29 tokens per session scan A 357b597c0582

Subscribe to this mod's changes

faust is a skill published in the GitHub repository Generous-Corp/pulp (16 stars, last pushed today), licensed MIT. It adds 29 tokens to every session and 1,513 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 2026-09-04.

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