ogpu: Skill for Claude Code

.claude/skills/webgpu-utils-lookup/SKILL.md

webgpu-utils-lookup is a skill for Claude Code from oframe/ogpu. It costs 193 tokens per session (2,071 once invoked), scanned A, original, Unlicense.

A source-checking guide for the webgpu-utils JavaScript library, using the version installed in a project. It covers the library’s functions, classes, options, and actual behavior.

In plain words
What is it for?
Use it when writing, debugging, or reviewing code that calls webgpu-utils, especially shader data, buffers, attributes, textures, or texture views.
Why use it?
It avoids answers based on memory or outdated online documentation, which can lead to incorrect option names, signatures, or runtime results.

Skill for Claude Code

Written for Claude Code: installed under .claude/. Also seen: mentions AGENTS.md.

This is oframe/ogpu's own configuration. It tells Claude Code how to work on ogpu itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything ogpu configures →

Reuse

Borrowing it

Nothing to install: this file belongs to oframe/ogpu. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/oframe/ogpu/main/.claude/skills/webgpu-utils-lookup/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/oframe/ogpu

Made for: Claude Code.

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 webgpu-utils-lookup

README.md
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agentmods 80×15 button for webgpu-utils-lookup

Your own site · 80×15
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Per session 193 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,071 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00193 $0.02071
Opus 5.5 $0.00077 $0.00828
Sonnet 5.5 $0.00039 $0.00414
Haiku 4.5 $0.00019 $0.00207

Measured 12d ago against content hash 52b03b36ba72, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

webgpu-utils-lookup 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 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.

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.

.claude/skills/webgpu-utils-lookup/SKILL.md · 138 lines

How it starts

The opening of the file, as written. The whole thing — 138 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Answer webgpu-utils questions from the source, not from memory

webgpu-utils is small but full of non-obvious behavior: functions that mutate a passed-in view in place, reflection that keys uniforms by declared name, helpers that silently pick a texture view dimension for you, options whose defaults matter (mips, usage, viewDimension). Memory of "roughly how it works" is exactly where wrong answers come from — a misremembered option name or a stale signature compiles fine and then breaks at runtime with no error. The cost of checking is a few seconds; the cost of guessing is a silent garbage texture or a buffer written to the wrong offset. So check first.

This codebase pins webgpu-utils 2.1.1 exactly (dist/2.x; its parser, a bundled wgsl_reflect snapshot, is part of the contract). The installed copy is the ground truth for this project — prefer it over anything you recall or find online, because online docs track latest and may have drifted.

Lookup order

  1. Local types — authoritative for the installed version. The .d.ts files carry full signatures, option-object shapes, defaults, and the doc-comments (often with usage examples). Read these first:

    node_modules/webgpu-utils/dist/2.x/<module>.d.ts
    

    references/api-map.md maps every exported symbol to its .d.ts module so you can jump straight to the right file.

  2. Local implementation — when behavior isn't clear from the type alone. Questions like "does it mutate the argument or return a copy?", "what does it default the format to?", "how does it decide cube vs 2d-array?" are answered by reading the compiled source:

    node_modules/webgpu-utils/dist/2.x/webgpu-utils.module.js
    

    It's readable ES — grep -n 'function <name>' to find the definition.

  3. GitHub repo — for rationale, latest source, history, issues. Use when the local copy doesn't settle it, when the user asks about a version newer than 2.1.1, or when "why does it do this" needs the original TypeScript / commit context: https://github.com/greggman/webgpu-utils (source under src/, one file per module mirroring the .d.ts names). Fetch with WebFetch.

Read the full file on GitHub · 138 lines

Files

What ships with it

2 files 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 Changed · +41 lines · +15 tokens per session 52b03b36ba72
  2. 1mo ago First seen · 97 lines · 178 tokens per session scan A 35d1259b52dc

Subscribe to this mod's changes

webgpu-utils-lookup is a skill published in the GitHub repository oframe/ogpu (163 stars, last pushed 3d ago), licensed Unlicense. It adds 193 tokens to every session and 2,071 once invoked, about $0.0008 per session on Opus 5.5. 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 2026-08-30.

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