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Control local Mac apps through Waku Computer
Passed 3 of 9 test cases with the skill, and 3 of 9 without it.
3 fixed5 passed either way15 still failing2 broke
Tokens, turns and time describe resource use, not a dollar price.
One of 3 test cases the skill fixed. Same model, same prompt, with and without the skill.
If the JavaScript REPL kernel is reset via `js_reset`, what mandatory step must occur before any `cua` API methods can be executed again?
| Checked | Without skill | With skill |
|---|---|---|
| Re-runs setupComputerUseRuntime before invoking cua methods. | Missed | Passed |
The instructions your model reads when the skill loads.
Use the js tool from waku_js_repl for computer interactions. It runs a
persistent QuickJS kernel. Use the direct cua methods documented here;
all methods are available immediately after bootstrap. Waku shows Cua's native
virtual cursor automatically while actions run; no cursor setup is needed.
Run once per fresh JavaScript session:
if (!globalThis.cua) {
await setupComputerUseRuntime({ globals: globalThis });
}
After js_reset, bootstrap again before using cua. Module imports and Node
subprocess APIs are unavailable. The native runtime is managed by Waku.
Use jsRepl.write(value) for text or structured output and
await jsRepl.emitImage(image) to show a returned image. Prefer top-level var
for names reused across calls. Calls default to 30 seconds; set timeout_ms
when an observation needs longer.
Call these methods directly. Arguments use the native names shown below; conditional constraints are validated by the runtime.
type CuaResult = {
content: Array<{ type: 'text'; text: string } | { type: 'image'; data: string; mimeType: string }>;
structuredContent?: any;
isError?: boolean;
};
declare const cua: {
readonly platform: "macos";
list_apps(args?: Record<string, never>): Promise<CuaResult>;
test cases passed, vs 3 / 9 without
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