Webhooks Spec

Machine-readable webhook specification. Public, no auth, no credits.

Returns:

• events[]: canonical event type list with descriptions
• signing: HMAC scheme, header format, verification snippet
• retry_policy: attempts + backoff + auto-disable rules
• tier_gate: which tiers can use webhooks
• management: full CRUD endpoint URLs
• delivery: payload shape + headers we send

Customers building event-driven integrations get the full spec in one fetch instead of reading docs HTML.

Industry pattern: Stripe, Twilio, GitHub all publish their webhook spec at a discoverable URL. We follow the same shape.

sleep_iter_56 #553: emits ETag + supports If-None-Match.