feat: send session prompt once

src/config/config.ts

@@ -17,6 +17,8 @@ export type SessionConfig = {
 	sessionArgNew?: string[];
 	sessionArgResume?: string[];
 	sessionArgBeforeBody?: boolean;
+	sendSystemOnce?: boolean;
+	sessionIntro?: string;
 };
 
 export type LoggingConfig = {
@@ -73,6 +75,8 @@ const ReplySchema = z
 				sessionArgNew: z.array(z.string()).optional(),
 				sessionArgResume: z.array(z.string()).optional(),
 				sessionArgBeforeBody: z.boolean().optional(),
+				sendSystemOnce: z.boolean().optional(),
+				sessionIntro: z.string().optional(),
 			})
 			.optional(),
 		claudeOutputFormat: z

src/config/sessions.ts

@@ -8,7 +8,11 @@ import { CONFIG_DIR, normalizeE164 } from "../utils.js";
 
 export type SessionScope = "per-sender" | "global";
 
-export type SessionEntry = { sessionId: string; updatedAt: number };
+export type SessionEntry = {
+	sessionId: string;
+	updatedAt: number;
+	systemSent?: boolean;
+};
 
 export const SESSION_STORE_DEFAULT = path.join(CONFIG_DIR, "sessions.json");
 export const DEFAULT_RESET_TRIGGER = "/new";