Function supportsExperimentalFeature

supportsExperimentalFeature(
capabilities: AdcpCapabilities,
featureId: string,
): boolean
Check if the agent has opted into a specific experimental AdCP surface.

Experimental surfaces carry x-status: experimental in the spec and their fields may change between minor releases. Consumers should gate any reliance on experimental fields on a positive check here.
Parameters
- capabilities: AdcpCapabilities
  — normalized capabilities from parseCapabilitiesResponse
- featureId: string
  — dot-namespaced id (e.g. brand.rights_lifecycle)
Returns boolean
Example
```
if (supportsExperimentalFeature(caps, 'brand.rights_lifecycle')) {
  // safe to call acquire_rights / release_rights and read their responses
}
```
- Defined in src/lib/utils/capabilities.ts:649