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.
npx skills add TheBeardedBearSAS/claude-craft --skill wasmgit clone --depth 1 https://github.com/TheBeardedBearSAS/claude-craftWrote 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.
[](https://agentmods.dev/skills/thebeardedbearsas/claude-craft/wasm)<a href="https://agentmods.dev/skills/thebeardedbearsas/claude-craft/wasm"><img src="https://agentmods.dev/badge/skills/thebeardedbearsas/claude-craft/wasm/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.
<a href="https://agentmods.dev/skills/thebeardedbearsas/claude-craft/wasm"><img src="https://agentmods.dev/badge/skills/thebeardedbearsas/claude-craft/wasm.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium Agent Snooping · line 77 Skill enumerates or reads other installed skills. Access to other skills' SKILL.md files or the skills directory reveals prompt instructions, capabilities, and secrets that should be invisible to peer skills.Fix: Remove all code or instructions that list or read other skills' files or directories. Skills should operate independently; cross-skill access is a privilege escalation.
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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00043 | $0.00479 |
| Opus 5 | $0.00022 | $0.00239 |
| Sonnet 5 | $0.00009 | $0.00096 |
| Haiku 4.5 | $0.00004 | $0.00048 |
Grade A, and why
wasm scanned grade A 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 5d 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
async fetch(req) { What it actually says
WebAssembly (WASM) — Component Model, WASI
WASM pour performance critique, polyglot runtime, edge computing.
Use Cases
Browser — Crypto, image (Figma, Google Earth)
Edge — Cloudflare Workers, Fastly
Server — Plugins sandboxés (Envoy)
Embedded — IoT, automotive
Compilation
Rust — wasm-pack (~50KB, perf)
Go — GOOS=js GOARCH=wasm (~2MB)
C/C++ — Emscripten (legacy)
AssemblyScript — TypeScript-like
Rust to WASM
use wasm_bindgen::prelude::*;
#[wasm_bindgen] pub fn add(a: i32, b: i32) -> i32 { a + b }
wasm-pack build --target web
import init, { add } from './pkg/wasm.js';
await init(); add(2, 3);
WASI (System Interface)
rustc --target wasm32-wasi main.rs -o app.wasm
wasmtime app.wasm
Component Model
interface math { add: func(a: s32, b: s32) -> s32 }
Compose Rust/Go/C++ modules typés.
Edge (Cloudflare)
import wasm from './processor.wasm';
export default {
async fetch(req) {
const inst = await WebAssembly.instantiate(wasm);
return new Response(inst.exports.process(req.body));
}
};
Runtimes
Wasmtime — Fast, WASI
Wasmer — Universal
WasmEdge — Edge, K8s
Voir @.claude/skills/edge-computing/SKILL.md
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.
- 5d ago First seen · 78 lines · 0 tokens per session scan A 460ebb891d09
wasm is a skill published in the GitHub repository TheBeardedBearSAS/claude-craft (105 stars, last pushed 6d ago), licensed MIT. It adds 43 tokens to every session and 479 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.
Other skills, from other repositories
language-rust
Rust idioms — ownership, lifetimes, and iterators. Auto-load when working with .rs files, Cargo.toml, or when the user mentions Rust, cargo, ownership, borrow checker, lifetime, or async Rust.
azure-eventhub-rust
Azure Event Hubs library for Rust. Send and receive events for streaming data ingestion and batch processing. Triggers: "event hubs rust", "ProducerClient rust", "ConsumerClient rust", "send event rust", "streaming rust", "eventhub rust".
azure-keyvault-secrets-rust
Azure Key Vault Secrets library for Rust. Store and retrieve secrets, passwords, and API keys. Triggers: "keyvault secrets rust", "SecretClient rust", "get secret rust", "set secret rust", "list secrets rust".
android-development
Android development with Kotlin, Jetpack Compose, and modern Android architecture. Use when building Android apps, implementing Material Design, or following Android best practices.
rust-development
Idiomatisk Rust-utvikling med cargo, clippy, error handling, async/tokio, unsafe og testing.
go-ci-workflow
Use when creating or refactoring GitHub Actions CI workflows for Go repositories. Covers repository-shape detection, Make-driven delegation with formal fallbacks, Go setup, caching, tool pinning, permissions, reusable workflows, and quality gate design.