refactor(sdk): derive messaging/delivery types from @relaycast/types

CHANGELOG.md

@@ -13,10 +13,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Changed
 
+- `@agent-relay/sdk` messaging and delivery types now derive from the canonical `@relaycast/types` schemas: `Relay*` types index into the wire contract, `normalize.ts` validates payloads with canonical-derived zod schemas at the boundary instead of probing snake/camel field variants, and the inbox/delivery state unions (`InboxItemState`, `InjectionResult.status`) extend the canonical `DeliveryStatus` instead of redeclaring it — wire-contract changes now surface as compile errors instead of silent drift.
 - `codex-relay-skill` and `gemini-relay-extension` now default to `https://gateway.relaycast.dev`, matching the `agent-relay` CLI and SDK. Set `RELAY_BASE_URL` to keep using `https://api.relaycast.dev`.
 
 ### Fixed
 
+- `@agent-relay/sdk` messaging events map the canonical `message.reacted` WebSocket event onto `reactionAdded`/`reactionRemoved`; previously only the non-canonical `reaction.added`/`reaction.removed` names were handled, so reaction listeners never fired against current Relaycast engines.
 - `agent-relay-broker` persists pending deliveries on shutdown and on every queue change, redelivers them on restart, reports timeout-fallback verification explicitly, and emits `delivery_dropped` when the per-worker queue cap evicts a message.
 
 ## [8.5.0] - 2026-06-11

packages/sdk/package.json

@@ -59,6 +59,8 @@
     "@types/node": "^22.13.10"
   },
   "dependencies": {
-    "@relaycast/sdk": "^3.1.1"
+    "@relaycast/sdk": "^3.1.1",
+    "@relaycast/types": "^3.1.1",
+    "zod": "^4.3.6"
   }
 }

packages/sdk/src/delivery/types.ts

@@ -1,3 +1,5 @@
+import type { DeliveryStatus } from '@relaycast/types';
+
 import type { RelayMessage } from '../messaging/index.js';
 import type { Unsubscribe } from '../capabilities.js';
 import type {
@@ -27,7 +29,8 @@ export interface InjectionContext {
 }
 
 export interface InjectionResult {
-  status: 'accepted' | 'delivered' | 'deferred' | 'failed';
+  /** Canonical durable-delivery status reported by the adapter. */
+  status: DeliveryStatus;
   injectionId?: string;
   availableAt?: string;
   reason?: string;