diff --git a/apps/server/server/trpc-adapter.ts b/apps/server/server/trpc-adapter.ts
index 2a88b1c..f234bd9 100644
--- a/apps/server/server/trpc-adapter.ts
+++ b/apps/server/server/trpc-adapter.ts
@@ -20,6 +20,7 @@ import type { AccountRepository } from '../db/repositories/account-repository.js
 import type { ChangeSetRepository } from '../db/repositories/change-set-repository.js';
 import type { LogChunkRepository } from '../db/repositories/log-chunk-repository.js';
 import type { ConversationRepository } from '../db/repositories/conversation-repository.js';
+import type { ChatSessionRepository } from '../db/repositories/chat-session-repository.js';
 import type { AccountCredentialManager } from '../agent/credentials/types.js';
 import type { DispatchManager, PhaseDispatchManager } from '../dispatch/types.js';
 import type { CoordinationManager } from '../coordination/types.js';
@@ -73,6 +74,8 @@ export interface TrpcAdapterOptions {
   previewManager?: PreviewManager;
   /** Conversation repository for inter-agent communication */
   conversationRepository?: ConversationRepository;
+  /** Chat session repository for iterative phase/task chat */
+  chatSessionRepository?: ChatSessionRepository;
   /** Absolute path to the workspace root (.cwrc directory) */
   workspaceRoot?: string;
 }