PLATFORM RC-98 (no-op) — Webhooks SDK packaging + versioning discipline (v1) (rc98)

Download OpenAPI specification:

RC-98 packages the RC-96 verification + envelope parsing stubs into versioned SDKs (Node + Python), and pins fixture-driven behavioral alignment across languages.

This OpenAPI file is contract-only:

it intentionally defines no HTTP endpoints (paths: {})
it exists so the API reference (Redoc) can document SDK-visible objects and error reasons

Canonical inputs:

signature contract + reasons: docs/contracts/v1/rc96/webhook_signature_verification.md
signature fixtures: docs/contracts/v1/rc96/fixtures/
envelope example: docs/contracts/v1/rc97/fixtures/event_envelope_example.json

SDK verification (consumer)

Signature verification and envelope parsing helpers for webhook consumers (no endpoints).