Answer-engine manifest with crawler policy, preferred citation targets, bounded APIs, and structured-data guidance.

Answer-engine manifest with crawler policy, preferred citation targets, bounded APIs, and structured-data guidance.

Inputs. No path or query fields are required. No request body is required.

Outputs. See each status below for its media type, schema and headers. A missing record or unavailable capability is not a successful empty result.

Errors. Read the status and Content-Type before decoding. Document, image, redirect and file routes need not return JSON errors.

Rate limits. Public read budgets apply by client IP and route group. This operation can have a smaller route-specific budget. Read Retry-After on 429 or retryable 503 responses.