fix(cron): add optional name parameter to separate job label from message (#2680)

nanobot/agent/tools/cron.py

@@ -13,6 +13,10 @@ from nanobot.cron.types import CronJob, CronJobState, CronSchedule
 @tool_parameters(
     tool_parameters_schema(
         action=StringSchema("Action to perform", enum=["add", "list", "remove"]),
+        name=StringSchema(
+            "Optional short human-readable label for the job "
+            "(e.g., 'weather-monitor', 'daily-standup'). Defaults to first 30 chars of message."
+        ),
         message=StringSchema(
             "Instruction for the agent to execute when the job triggers "
             "(e.g., 'Send a reminder to WeChat: xxx' or 'Check system status and report')"
@@ -93,6 +97,7 @@ class CronTool(Tool):
     async def execute(
         self,
         action: str,
+        name: str | None = None,
         message: str = "",
         every_seconds: int | None = None,
         cron_expr: str | None = None,
@@ -105,7 +110,7 @@ class CronTool(Tool):
         if action == "add":
             if self._in_cron_context.get():
                 return "Error: cannot schedule new jobs from within a cron job execution"
-            return self._add_job(message, every_seconds, cron_expr, tz, at, deliver)
+            return self._add_job(name, message, every_seconds, cron_expr, tz, at, deliver)
         elif action == "list":
             return self._list_jobs()
         elif action == "remove":
@@ -114,6 +119,7 @@ class CronTool(Tool):
 
     def _add_job(
         self,
+        name: str | None,
         message: str,
         every_seconds: int | None,
         cron_expr: str | None,
@@ -158,7 +164,7 @@ class CronTool(Tool):
             return "Error: either every_seconds, cron_expr, or at is required"
 
         job = self._cron.add_job(
-            name=message[:30],
+            name=name or message[:30],
             schedule=schedule,
             message=message,
             deliver=deliver,