Use when: designing C ABI APIs with opaque types and function pointer tables, creating header-only C++ wrappers over C APIs, adding new API surface area to the SDK, reviewing ABI stability, implementing vtable-based versioned interfaces, wrapping opaque handles with RAII C++ classes.
Use when: writing or modifying JavaScript or TypeScript code in the Foundry Local SDK, implementing or maintaining the Node-API C addon for the JS SDK, porting C# or Python SDK functionality to JS/TS, wrapping native handles in idiomatic JS classes, implementing async iterables for streaming, packaging with…
Use to PROVE motion works at runtime, not just statically — drive a running app in a real browser to confirm a 3D scene renders (non-blank canvas), interactions respond, motion holds its frame budget, and reduced motion is honored. Reaches for playwright-cli + MotionScore when available and degrades gracefully to…
Use for three.js, React Three Fiber, Drei, WebGL, GLB, shaders, PBR materials, lighting, camera choreography, postprocessing, particles, scroll-driven 3D, and performance-safe 3D implementation.
Agent "index" from pivanov/agents-wire, covering agents, model selection by agent, live model list (cursor and opencode), detect what's available and install table.
Use when testing in browser, verifying UI works, checking end-user functionality, visual verification, cross-browser checks, or need automated browser testing.