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src/apps/officer-web/state/useSlashCommands.ts

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+import { useSessions } from './useSessions';
+
+export type SlashCommandResult = { handled: true; feedback: string } | { handled: false };
+
+type UseSlashCommandsParams = {
+  sessionId: string | null;
+};
+
+export const useSlashCommands = ({ sessionId }: UseSlashCommandsParams) => {
+  const { renameSession } = useSessions();
+
+  const execute = async (input: string): Promise<SlashCommandResult> => {
+    const trimmed = input.trim();
+    if (!trimmed.startsWith('/')) return { handled: false };
+
+    const spaceIndex = trimmed.indexOf(' ');
+    const command = spaceIndex === -1 ? trimmed.slice(1) : trimmed.slice(1, spaceIndex);
+    const args = spaceIndex === -1 ? '' : trimmed.slice(spaceIndex + 1).trim();
+
+    switch (command) {
+      case 'rename':
+        return renameSession(sessionId, args);
+      default:
+        return { handled: false };
+    }
+  };
+
+  return { execute };
+};