feat(core): add command, intent, and routing primitives

src/gateway/handlers/routing.ts

@@ -0,0 +1,31 @@
+import type { GatewayRequest, OutboundMessage } from '../protocol.js';
+import { makeError, makeResponse, ErrorCode } from '../protocol.js';
+import type { ComponentRegistry } from '../../intents/index.js';
+import type { RoutingPolicy } from '../../routing/index.js';
+
+export interface RoutingHandlerDeps {
+  intentRegistry?: ComponentRegistry;
+  routingPolicy?: RoutingPolicy;
+}
+
+export function createRoutingHandlers(deps: RoutingHandlerDeps) {
+  return {
+    'routing.decide': async (request: GatewayRequest): Promise<OutboundMessage> => {
+      const params = request.params as { input?: string } | undefined;
+      if (!params?.input) {
+        return makeError(request.id, ErrorCode.InvalidRequest, 'input is required');
+      }
+
+      const match = deps.intentRegistry?.match(params.input) ?? null;
+      const decision = deps.routingPolicy?.decide({ confidence: match?.score ?? null }) ?? {
+        path: 'llm',
+        reason: 'disabled',
+      };
+
+      return makeResponse(request.id, {
+        match,
+        decision,
+      });
+    },
+  };
+}