end

src/langbot/pkg/workflow/nodes/send_message.py

@@ -5,11 +5,14 @@ Node metadata is loaded from: ../../templates/metadata/nodes/send_message.yaml
 
 from __future__ import annotations
 
+import logging
 from typing import Any
 
 from langbot_plugin.api.entities.builtin.workflow import ExecutionContext
 from ..node import WorkflowNode, workflow_node
 
+logger = logging.getLogger(__name__)
+
 @workflow_node('send_message')
 class SendMessageNode(WorkflowNode):
     """Send message node - send message to a target"""
@@ -17,4 +20,52 @@ class SendMessageNode(WorkflowNode):
     category = 'action'
 
     async def execute(self, inputs: dict[str, Any], context: ExecutionContext) -> dict[str, Any]:
-        return {'status': 'sent', 'message_id': f'msg_{context.execution_id}'}
+        # Get message content from inputs
+        message = inputs.get('message') or inputs.get('content') or inputs.get('input') or ''
+        message = str(message) if message is not None else ''
+
+        # Get target configuration
+        target_type = self.get_config('target_type', 'person')
+        target_id = self.get_config('target_id', '')
+        
+        # If no target_id configured, use session_id from context
+        if not target_id:
+            target_id = f'{context.session_id or "unknown"}'
+
+        if not message.strip():
+            logger.warning('SendMessageNode has empty message')
+            return {
+                'status': 'failed',
+                'error': 'Empty message',
+                'message_preview': '',
+            }
+
+        # Send message if application instance is available
+        send_success = False
+        send_error = None
+        if self.ap:
+            try:
+                from langbot_plugin.api.entities.builtin.platform.message import MessageChain, Plain
+
+                message_chain = MessageChain([Plain(text=message)])
+                await self.ap.platform_mgr.websocket_proxy_bot.adapter.send_message(
+                    target_type=target_type,
+                    target_id=target_id,
+                    message=message_chain,
+                )
+                send_success = True
+                logger.info('SendMessageNode sent message to %s:%s', target_type, target_id)
+            except Exception as e:
+                send_error = str(e)
+                logger.error('SendMessageNode send failed: %s', e, exc_info=True)
+        else:
+            send_error = 'Missing application instance'
+            logger.warning('SendMessageNode missing application instance')
+
+        return {
+            'status': 'sent' if send_success else 'failed',
+            'message_preview': message[:200],
+            'target_type': target_type,
+            'target_id': target_id,
+            'error': send_error,
+        }