Contribute A New API Surface

Companion Guidance

Use karpathy-guidelines alongside this skill for implementation or review work. Keep changes scoped, surface assumptions, and define focused validation before editing.

Use this skill when contributing a public API addition or behavior change to the runtime or bindings.

Default Guidance

• Start from the shared core behavior first
• Decide which bindings must expose the new surface
• Follow the parity checklist in add-binding-feature
• Update docs and examples in the same branch