diff --git a/server/src/chat/transport/slack.rs b/server/src/chat/transport/slack.rs
index 262e7282..d6701088 100644
--- a/server/src/chat/transport/slack.rs
+++ b/server/src/chat/transport/slack.rs
@@ -863,6 +863,28 @@ async fn handle_incoming_message(
         return;
     }
 
+    if crate::chat::transport::matrix::reset::extract_reset_command(
+        message,
+        &ctx.bot_name,
+        &ctx.bot_user_id,
+    )
+    .is_some()
+    {
+        slog!("[slack] Handling reset command from {user} in {channel}");
+        {
+            let mut guard = ctx.history.lock().await;
+            let conv = guard.entry(channel.to_string()).or_insert_with(RoomConversation::default);
+            conv.session_id = None;
+            conv.entries.clear();
+            save_slack_history(&ctx.project_root, &guard);
+        }
+        let _ = ctx
+            .transport
+            .send_message(channel, "Session cleared.", "")
+            .await;
+        return;
+    }
+
     // No command matched — forward to LLM for conversational response.
     slog!("[slack] No command matched, forwarding to LLM for {user} in {channel}");
     handle_llm_message(ctx, channel, user, message).await;
@@ -1725,4 +1747,63 @@ mod tests {
         );
         assert!(result.is_none(), "'status' should not be recognised as rebuild");
     }
+
+    // ── reset command extraction ───────────────────────────────────────
+
+    #[test]
+    fn reset_command_extracted_from_slack_message() {
+        let result = crate::chat::transport::matrix::reset::extract_reset_command(
+            "Storkit reset",
+            "Storkit",
+            "slack-bot",
+        );
+        assert!(result.is_some(), "'Storkit reset' should be recognised");
+    }
+
+    #[test]
+    fn reset_command_extracted_plain_no_mention() {
+        let result = crate::chat::transport::matrix::reset::extract_reset_command(
+            "reset",
+            "Storkit",
+            "slack-bot",
+        );
+        assert!(result.is_some(), "plain 'reset' should be recognised");
+    }
+
+    #[tokio::test]
+    async fn reset_command_clears_slack_session() {
+        use std::sync::Arc;
+        use tokio::sync::Mutex as TokioMutex;
+
+        let channel = "C01ABCDEF";
+        let history: SlackConversationHistory = Arc::new(TokioMutex::new({
+            let mut m = HashMap::new();
+            m.insert(channel.to_string(), RoomConversation {
+                session_id: Some("old-session".to_string()),
+                entries: vec![ConversationEntry {
+                    role: ConversationRole::User,
+                    sender: "U01GHIJKL".to_string(),
+                    content: "previous message".to_string(),
+                }],
+            });
+            m
+        }));
+
+        let tmp = tempfile::tempdir().unwrap();
+        let sk = tmp.path().join(".storkit");
+        std::fs::create_dir_all(&sk).unwrap();
+
+        {
+            let mut guard = history.lock().await;
+            let conv = guard.entry(channel.to_string()).or_insert_with(RoomConversation::default);
+            conv.session_id = None;
+            conv.entries.clear();
+            save_slack_history(tmp.path(), &guard);
+        }
+
+        let guard = history.lock().await;
+        let conv = guard.get(channel).unwrap();
+        assert!(conv.session_id.is_none(), "session_id should be cleared");
+        assert!(conv.entries.is_empty(), "entries should be cleared");
+    }
 }
diff --git a/server/src/chat/transport/whatsapp.rs b/server/src/chat/transport/whatsapp.rs
index c1cea399..805654ea 100644
--- a/server/src/chat/transport/whatsapp.rs
+++ b/server/src/chat/transport/whatsapp.rs
@@ -1124,6 +1124,28 @@ async fn handle_incoming_message(ctx: &WhatsAppWebhookContext, sender: &str, mes
         return;
     }
 
+    if crate::chat::transport::matrix::reset::extract_reset_command(
+        message,
+        &ctx.bot_name,
+        &ctx.bot_user_id,
+    )
+    .is_some()
+    {
+        slog!("[whatsapp] Handling reset command from {sender}");
+        {
+            let mut guard = ctx.history.lock().await;
+            let conv = guard.entry(sender.to_string()).or_insert_with(RoomConversation::default);
+            conv.session_id = None;
+            conv.entries.clear();
+            save_whatsapp_history(&ctx.project_root, &guard);
+        }
+        let _ = ctx
+            .transport
+            .send_message(sender, "Session cleared.", "")
+            .await;
+        return;
+    }
+
     // No command matched — forward to LLM for conversational response.
     slog!("[whatsapp] No command matched, forwarding to LLM for {sender}");
     handle_llm_message(ctx, sender, message).await;
@@ -2127,4 +2149,63 @@ mod tests {
         assert!(loaded.contains_key("222"));
         assert_eq!(loaded["222"].session_id.as_deref(), Some("sess-222"));
     }
+
+    // ── reset command extraction ───────────────────────────────────────
+
+    #[test]
+    fn reset_command_extracted_from_plain_message() {
+        let result = crate::chat::transport::matrix::reset::extract_reset_command(
+            "reset",
+            "Timmy",
+            "@timmy:home.local",
+        );
+        assert!(result.is_some(), "plain 'reset' should be recognised");
+    }
+
+    #[test]
+    fn reset_command_extracted_with_bot_name_prefix() {
+        let result = crate::chat::transport::matrix::reset::extract_reset_command(
+            "Timmy reset",
+            "Timmy",
+            "@timmy:home.local",
+        );
+        assert!(result.is_some(), "'Timmy reset' should be recognised");
+    }
+
+    #[tokio::test]
+    async fn reset_command_clears_whatsapp_session() {
+        use std::sync::Arc;
+        use tokio::sync::Mutex as TokioMutex;
+
+        let sender = "+15555550100";
+        let history: WhatsAppConversationHistory = Arc::new(TokioMutex::new({
+            let mut m = HashMap::new();
+            m.insert(sender.to_string(), RoomConversation {
+                session_id: Some("old-session".to_string()),
+                entries: vec![ConversationEntry {
+                    role: ConversationRole::User,
+                    sender: sender.to_string(),
+                    content: "previous message".to_string(),
+                }],
+            });
+            m
+        }));
+
+        let tmp = tempfile::tempdir().unwrap();
+        let sk = tmp.path().join(".storkit");
+        std::fs::create_dir_all(&sk).unwrap();
+
+        {
+            let mut guard = history.lock().await;
+            let conv = guard.entry(sender.to_string()).or_insert_with(RoomConversation::default);
+            conv.session_id = None;
+            conv.entries.clear();
+            save_whatsapp_history(tmp.path(), &guard);
+        }
+
+        let guard = history.lock().await;
+        let conv = guard.get(sender).unwrap();
+        assert!(conv.session_id.is_none(), "session_id should be cleared");
+        assert!(conv.entries.is_empty(), "entries should be cleared");
+    }
 }