updated to not drop threads without mentions

Author: rossja

src/channels/slack.ts

@@ -288,6 +288,10 @@ export class SlackChannel implements Channel {
 		}
 	}
 
+	trackThreadParticipation(channelId: string, threadTs: string): void {
+		this.participatedThreads.add(`${channelId}:${threadTs}`);
+	}
+
 	private registerEventHandlers(): void {
 		this.app.event("app_mention", async ({ event, client: _client }) => {
 			if (!this.messageHandler) return;

src/index.ts

@@ -450,12 +450,16 @@ async function main(): Promise<void> {
 		if (progressStream) {
 			// Slack: update the progress message with the final response + feedback buttons
 			await progressStream.finish(response.text);
+			if (slackChannel && slackChannelId && slackThreadTs) {
+				slackChannel.trackThreadParticipation(slackChannelId, slackThreadTs);
+			}
 		} else if (isSlack && slackChannel && slackChannelId && slackThreadTs) {
 			// Slack fallback: send direct reply with feedback
 			const thinkingTs = await slackChannel.postThinking(slackChannelId, slackThreadTs);
 			if (thinkingTs) {
 				await slackChannel.updateWithFeedback(slackChannelId, thinkingTs, response.text);
 			}
+			slackChannel.trackThreadParticipation(slackChannelId, slackThreadTs);
 		} else {
 			// All other channels: send via router
 			await router.send(msg.channelId, msg.conversationId, {