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Validate visualizer behavior and product-facing runtime changes. Use when running targeted tests, integration or compatibility coverage, or the full repo quality gate.
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Based on SOC occupation classification
Auto-guardrail for agent-authored changes. Use at the start of any coding session to prevent the most common agent mistakes in this repo.
Iterate on visualizer UI, workspace chrome, and CSS with fast feedback loops. Use when changing frontend components, styling, layout, or animation without needing the full MilkDrop runtime.
Modify the flagship visualizer runtime safely. Use when changing the shared runtime, loader, renderer, shell, controls, audio flows, capability checks, or canonical-route behavior.
Review changes to module loading, bootstrap, toy manifest, library resolution, or gamepad polling. Use when a PR touches src/js/bootstrap/, src/js/loader.ts, src/js/router.ts, src/js/toy-view.ts, src/data/toys.json, or gamepad polling code.
Review changes to renderer capability probing, fallback chains, timeout logic, or audio worklet initialization. Use when a PR touches src/js/core/renderer-*, src/js/core/audio-handler.ts, or src/js/milkdrop/runtime/backend-fallback.ts.
Review changes to WebGPU/WebGL dual-backend parity. Use when a PR touches feedback managers, renderer adapters, shader lowering, or any code that affects both WebGPU and WebGL rendering paths.
| name | test-visualizer |
| description | Validate visualizer behavior and product-facing runtime changes. Use when running targeted tests, integration or compatibility coverage, or the full repo quality gate. |
Use this skill when the main task is validation rather than implementation.
Run a targeted spec while iterating:
bun run test tests/path/to/spec.test.ts
Run browser-backed integration coverage when loader, shell, audio, or real-page behavior changed:
bun run test:integration
Run compatibility coverage when preset parsing or support guarantees changed:
bun run test:compat
Use the full quality gate before sign-off:
bun run check
bun run test, not raw bun test.play-visualizer when you need manual browser evidence.