web-plugins

web-plugins is a skill for Claude Code, Codex from Generous-Corp/pulp. It costs 127 tokens per session (20,153 once invoked), scanned B, original, MIT.

A technical guide for running Pulp's audio tools and interface in web browsers. It explains WebAssembly, a way to run compiled code in the browser, and covers browser audio adapters, a WebGL2-rendered interface, and their build constraints.

In plain words
What is it for?
Use it when building or reviewing Pulp's browser targets, including WAM v2 and WebCLAP audio adapters, WebAssembly builds, browser UI hosting, and WebGPU audio work.
Why use it?
It prevents incorrect assumptions about what can run in a browser, which threads and APIs are available, and which graphics technology is used. It also separates the browser interface from the audio processing side.

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/web-plugins
Any agent
npx skills add Generous-Corp/pulp --skill web-plugins
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 web-plugins

README.md
[![agentmods](https://agentmods.dev/badge/skills/generous-corp/pulp/web-plugins.svg)](https://agentmods.dev/skills/generous-corp/pulp/web-plugins)
Your own site
<a href="https://agentmods.dev/skills/generous-corp/pulp/web-plugins"><img src="https://agentmods.dev/badge/skills/generous-corp/pulp/web-plugins.svg" alt="Measured on agentmods" height="20"></a>
Per session 127 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 20,153 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 1 finding. 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 $0.00127 $0.20153
Opus 5 $0.00063 $0.10077
Sonnet 5 $0.00025 $0.04031
Haiku 4.5 $0.00013 $0.02015

Measured today against content hash 914f1dfffb35, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade B, and why

web-plugins 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 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.

Asks for rootmediumPrivilege escalation

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

system GPU. One-time: `sudo safaridriver --enable` + Safari → Develop → "Allow Remote
.agents/skills/web-plugins/SKILL.md · 1,315 lines

How it starts

The opening of the file, as written. The whole thing — 1,315 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Pulp on the web (WAM v2 / WebCLAP / browser UI)

Pulp targets the browser through two audio ABIs and one UI host:

Piece Where What it is
WAM v2 adapter core/format/src/wasm/wam_adapter.cpp, wam-runtime.mjs The whole module lives inside one AudioWorklet
WebCLAP adapter core/format/src/wasm/ + examples/web-demos/wclap-build/ Real CLAP, wasm-hosted; needs COOP/COEP for threaded shared memory
Browser window host core/view/platform/web/ core/view's widget tree painted by Skia Ganesh on WebGL2

The audio side and the UI side are independent. The browser UI module is DSP-free and talks to audio only through the web player's HostAdapter seam, so the same wasm UI module mounts against both a WAM and a WebCLAP demo. Build it once; if it looks different across the two ABIs, that is a shared-player bug, not a per-demo tweak.

What is NOT in the browser

Be precise about this; it is easy to overclaim and the claims get quoted.

  • The UI is not Graphite/Dawn. The published Skia wasm slice is Ganesh on WebGL2 and ships zero wgpu symbols (see the skia-gpu-build skill's wasm section). WebGL2 has no compute shaders, so the UI's render path cannot carry GPU DSP — the two lanes are unrelated (see below).
  • File-backed loaders and native editors are compiled out (PULP_WASM / PULP_HEADLESS). A plugin that needs an asset on the web must carry it in the binary or fetch it on the main thread — an AudioWorkletGlobalScope cannot fetch, which is also why the WAM worklet build must be SINGLE_FILE (the wasm embedded in the .js).

GPU audio in the browser: it exists, and it is a THIRD lane

CI capacity isolation. The real-GPU macOS proof is advisory and must not consume a required merge-gate runner. .github/workflows/web-plugins.yml therefore reads PULP_ADVISORY_GPU_MACOS_RUNS_ON_JSON, not PULP_LOCAL_MACOS_RUNS_ON_JSON, and passes it through tools/scripts/resolve_advisory_macos_runner.py. The proof skips when the advisory selector is unset; configured selectors must be self-hosted and cannot contain pulp-build* or pulp-preamble*, and must carry a pulp-advisory-* identity. Give the proof its own governed tartci supervisor and pulp-advisory-gpu label. Do not add that advisory label to a required runner, and do not use Orchard.

Read the full file on GitHub · 1,315 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 Changed · +19 lines 914f1dfffb35
  2. today First seen · 1,296 lines · 127 tokens per session scan B cb02c9f21b8d

Subscribe to this mod's changes

web-plugins is a skill published in the GitHub repository Generous-Corp/pulp (16 stars, last pushed today), licensed MIT. It adds 127 tokens to every session and 20,153 once invoked, about $0.0006 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 2026-09-04.

Related

Other skills, from other repositories

v8-jit

V8 JIT optimization patterns for writing high-performance JavaScript in Next.js server internals. Use when writing or reviewing hot-path code in app-render, stream-utils, routing, caching, or any per-request code path. Covers hidden classes / shapes, monomorphic call sites, inline caches, megamorphic deopt, closure…

vercel/next.js · 88 tokens

use-agent-browser-for-airi

Test AIRI display-model imports with agent-browser across stage-tamagotchi Electron, stage-web, and stage-pocket mobile web layouts. Use when uploading and verifying contributor-supplied Live2D ZIP, VRM, or MMD ZIP/PMX/PMD files through AIRI's model selector, including onboarding bypass, format-specific import…

moeru-ai/airi · 87 tokens

opencli-sitemap-author

Use when creating or maintaining OpenCLI site sitemaps: agent-facing navigation, page-state, action, workflow, API-reference, pitfall, and fallback knowledge for a website. Use after browser exploration discovers durable site context, when a sitemap is stale, or when promoting local site knowledge into the repo.

jackwener/OpenCLI · 67 tokens

debug-optimize-lcp

Guides debugging and optimizing Largest Contentful Paint (LCP) using Chrome DevTools MCP tools. Use this skill whenever the user asks about LCP performance, slow page loads, Core Web Vitals optimization, or wants to understand why their page's main content takes too long to appear. Also use when the user mentions…

ChromeDevTools/chrome-devtools-mcp · 99 tokens

webapp-testing

Toolkit for interacting with and testing local web applications using Playwright. Supports verifying frontend functionality, debugging UI behavior, capturing browser screenshots, and viewing browser logs.

every-app/open-seo · 35 tokens

interactive-login

How to complete browser/interactive logins (aws / gh / glab / gcloud). The platform backgrounds the login poller so it survives the human's browser round-trip — and when that does NOT work.

yc-software/qm · 46 tokens