菜单
Build a Xenolith wasm test, serve it with COOP/COEP, and open it in the browser. Use when someone wants to run/see a wasm test (libc, threads, WebGPU) locally without manual build+serve steps.
默认使用会先检查来源的 Prompt；你也可以切换为直接命令，或下载本地副本。
决定是否安装前，请先阅读 SKILL.md，以及 SkillsMP 当前展示的配套文件。
用 Codex 或 Claude 帮你安装 复制这段 Prompt，粘贴到 Codex、Claude 或其他助手里，让它检查 Skill 页面并帮你完成安装。
直接命令不会经过审查 Prompt；运行前请先检查来源。
npx skills add https://github.com/XenolithEngine/xenolith-engine --skill wasm-test命令会保持在同一行。复制前请横向滚动并检查完整内容。
想先保存到本地？可下载 SkillsMP 当前能够提供的文件。
Write C/C++ in the Xenolith/Stappler monorepo the way the codebase is written. Use BEFORE creating or editing sources in runtime/, stappler/, xenolith/, tests/ or utils/ — new file, new header, new class, new platform branch, new allocation. Covers .cpp SCU vs .cc subunits, license/include-guard/namespace layout, SP_PUBLIC and SPRT_API, naming (_member, handleXxx, Rc<T>::create), #if SPRT_WINDOWS platform guards, pool vs malloc ownership rules (AllocPool, sprt::__delete, new (pool) T), independent pools that move between threads (PoolRef, SharedRef<T>, PoolObject), threads and dispatch (Looper, Task, Handle), the scene graph (Node geometry, and using System/Component instead of subclassing Node), strings (StringView lifetime, mem_std vs mem_pool, CallbackStream, reader API), Unicode text (compareCodepoints vs compareFolded vs collate, case mapping strings not characters, IDN, and the rules for generated Unicode tables), error handling with no exceptions (Status, Result<T>, slog(), asserts), weakly-typed data
Write CSS for the Xenolith/Stappler engine's CSS engine (stappler_document + xenolith_renderer_ui StyleSystem) CORRECTLY — it is a CSS subset, NOT web CSS. Use before writing or debugging any .css in this repo (resources/style.css, pug templates, ui:: atoms). Covers what flex/position/measure/selectors/units properties are really supported, and — critically — what web CSS features are silently ignored (:not(), ::before, [attr], min/max on a flex item's CROSS axis, position:relative offsets, prefers-color-scheme, transform/box-shadow).
Debug and drive a Xenolith app over its inspector socket — headless by default (`--headless`, no window system), so a GUI can be inspected, screenshotted and driven with no display, no compositor and no mouse. MCP tools: `inspect_scene` (the node tree), `get_logs` (the log ring buffer), `screenshot`, `list_commands`/`invoke_command` (scene-registered actions), `send_input`, `send_text`, `step_frame`, `window_control`, `quit_app`. Use when a Xenolith GUI app (installer, scaffolded app, tests/window) is misbehaving visually — missing elements, wrong layout, invisible nodes, overlap, wrong stacking, an element you can't find, "why is this hidden", "where did this node go"; when verifying business logic (catalogue load, install progress, errors, crashes) works BEFORE or independently of the UI; or when you need a screenshot of an app on a machine with no session at all. Complements source-level debugging (lldb/wine-debug).
基于 SOC 职业分类
正在显示 SKILL.md
| name | wasm-test |
| description | Build a Xenolith wasm test, serve it with COOP/COEP, and open it in the browser. Use when someone wants to run/see a wasm test (libc, threads, WebGPU) locally without manual build+serve steps. |
Everything is wrapped in runtime/wasm-js/xwasm.sh. It builds the target for wasm32 with the
host toolchain, copies the .wasm next to the loader, starts a COOP/COEP dev server
(required for SharedArrayBuffer / threads), and opens the page in the browser.
runtime/wasm-js/xwasm.sh <test> # build + serve + open
runtime/wasm-js/xwasm.sh <test> --no-open # build + serve, just print the URL
runtime/wasm-js/xwasm.sh --list # list tests
Tests:
libc — the full tests/libc suite (files, threads 4/4, strftime, STL). 53 sections.thread — minimal pthread create/join smoke test.bundled — reads an external file the browser fetches (LocationCategory::Bundled).gpu — animated WebGPU triangle via a minimal host ABI.gpuc — WebGPU triangle through the real webgpu.h C ABI (the engine's binding).Auto-detected for the stock installer layout. Override if needed:
XENOLITH_HOST — installed host toolchain dir (contains bin/make and host.mk)XENOLITH_TARGET — path to the wasm32 target.mkXENOLITH_PORT — server port (default 8080)coop-server.py) is what makes threads work; a plain static server
won't set crossOriginIsolated and threads will degrade.--no-open and drive the printed URL via CDP; a plain
--dump-dom won't wait for the worker's async fetch, so poll document.title.