pulp-web-demo

pulp-web-demo is a skill for Claude Code, Codex from Generous-Corp/pulp. It costs 189 tokens per session (3,778 once invoked), scanned A, original, MIT.

A build guide for creating browser demos of Pulp audio plugins from one configuration. It keeps the WAM and WCLAP web formats using the same audio player and behaviour.

In plain words
What is it for?
Use it to create or update plugin demos, add plugins to a web gallery, and publish demos for both supported web formats.
Why use it?
It removes the need to maintain separate demo implementations that can drift apart or behave differently.

Skill for Claude CodeCodex

Part of the pulp plugin — 63 skills, 30 commands, 3 hooks, 1 MCP server shipped together

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

Made for: Claude Code, Codex.

Or install pulp, the plugin that ships this one along with the rest of its 63 skills, 30 commands, 3 hooks, 1 MCP server.

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 pulp-web-demo

README.md
[![agentmods](https://agentmods.dev/badge/skills/generous-corp/pulp/pulp-web-demo.svg)](https://agentmods.dev/skills/generous-corp/pulp/pulp-web-demo)
Your own site
<a href="https://agentmods.dev/skills/generous-corp/pulp/pulp-web-demo"><img src="https://agentmods.dev/badge/skills/generous-corp/pulp/pulp-web-demo.svg" alt="Measured on agentmods" height="20"></a>
Per session 189 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,778 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 $0.00189 $0.03778
Opus 5 $0.00095 $0.01889
Sonnet 5 $0.00038 $0.00756
Haiku 4.5 $0.00019 $0.00378

Measured today against content hash 778075de7424, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

pulp-web-demo 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.

The scan reads SKILL.md. This mod also ships 3 executable files (generate.mjs, templates/hosting/coi/coi-serviceworker.js, validate.mjs), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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/pulp-web-demo/SKILL.md · 226 lines

How it starts

The opening of the file, as written. The whole thing — 226 lines — stays where its author put it; the contents beside it link to each section on GitHub.

pulp-web-demo — generative web-demo skill

The way Pulp plugin web demos are built so the two web ABIs behave identically: WAM (Emscripten → AudioWorklet, single-thread, plain static hosting) and WCLAP (threaded CLAP-compiled-to-wasm hosted by a worklet-resident CLAP host, needs cross-origin isolation). Apply by default when creating/updating a demo, adding a plugin to a gallery, or touching hosting.

The one rule

Both ABIs mount the SAME shared player. Every UX behavior — no-autoplay overlay, iOS/mobile touch hygiene, keyboard/polyphony, scope/meter/safety-limiter, PLST state round-trip, token theming — lives in @danielraffel/web-player (npm, pinned). The generated pages import that pinned player; they never vendor a copy (vendoring is the historical drift hazard). Fix any UX behavior once, in the player; both ABIs inherit it.

How it works

Customization is declarative data + at most two executable seams. The smarts are in the player; this skill is only the wiring + publish pipeline. Everything runs from the skill dir:

  1. Config<repo-root>/.pulp-web-demo/config.json, validated against the bundled config.schema.json (schemaVersion: 1, unknown keys rejected). Declares: the pinned player, theme token/font hrefs, per-ABI deploy profiles, the plugin catalog, gallery nav/cross-links, and OG/metadata policy. See examples/example.config.json and README.md.
  2. Generatenode generate.mjs --config <cfg> --out <siteDir>. Deterministic (no network, no clock/random): identical config ⇒ byte-identical output. Stamps versioned templates into a WAM+WCLAP site and writes a .pulp-web-demo.manifest.json of owned files (with hashes) for upgrade safety. Use --check for a dry run.
  3. Validate (blocking)node validate.mjs --config <cfg> --site <siteDir> --check-isolation --check-metadata --check-ownership. Fails CI on: schema/invariant violations, cross-origin-isolation not covering the deployed base path, missing OG tags, or locally-modified owned files.

Read the full file on GitHub · 226 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 · 226 lines · 189 tokens per session scan A 778075de7424

Subscribe to this mod's changes

pulp-web-demo is a skill published in the GitHub repository Generous-Corp/pulp (16 stars, last pushed today), licensed MIT. It adds 189 tokens to every session and 3,778 once invoked, about $0.0009 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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