make a single agent

app/agents/task_agent.py

@@ -3,12 +3,21 @@
 from __future__ import annotations
 
 from datetime import datetime, timezone
+import re
 from typing import Any
 
 from langchain_core.tools import tool
 
 from app.core.ws_context import execute_on_client
 
+_UUID_RE = re.compile(
+    r"^[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-5][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}$"
+)
+
+
+def _is_uuid(value: str) -> bool:
+    return bool(_UUID_RE.match(value))
+
 TASK_SYSTEM_PROMPT = (
     "You are a task management assistant for a project workspace.\n"
     "You create, update, list, and track tasks and their comments.\n\n"
@@ -39,11 +48,12 @@ async def list_tasks(
 ) -> str:
     """List tasks, optionally filtered by project_id, status (todo|in_progress|done),
     a search string, or an order_by field name (dueDate|priority|createdAt)."""
+    normalized_project_id = project_id if (project_id and _is_uuid(project_id)) else ""
     result = await execute_on_client(
         action="select",
         table="tasks",
         filters={
-            "projectId": project_id or None,
+            "projectId": normalized_project_id or None,
             "status": status or None,
             "search": search or None,
             "orderBy": order_by or None,
@@ -205,8 +215,12 @@ async def add_task_comment(task_id: str, author: str, content: str) -> str:
         table="taskComments",
         data={"taskId": task_id, "author": author, "content": content},
     )
-    row = result["row"]
-    return f"Comment added by {row['author']} on task {row['taskId']} (comment id: {row['id']})."
+    row = result.get("row", {})
+    row_author = row.get("author", author)
+    # Electron payloads can vary (taskId vs task_id). Fall back to input task_id.
+    row_task_id = row.get("taskId") or row.get("task_id") or task_id
+    row_comment_id = row.get("id", "unknown")
+    return f"Comment added by {row_author} on task {row_task_id} (comment id: {row_comment_id})."
 
 
 @tool