extract parser.py and tool_runner.py from agent code

agents/handover.py

@@ -11,6 +11,7 @@ from datetime import datetime, timezone
 from typing import Any
 
 from agents.shared.mcp_client import MCPMultiClient
+from agents.shared.tool_runner import build_tool_caller
 
 ALL_HUBS = ["ORD", "EWR", "IAH", "SFO", "DEN"]
 
@@ -43,40 +44,7 @@ async def run_handover(
 
     await emit("node_enter", node="gather_all")
 
-    async def _call(server, tool, args, is_live=False, timeout=15.0):
-        t = time.time()
-        ctx = lf.start_as_current_observation(
-            name=tool, as_type="tool", input=args,
-            metadata={"server": server, "is_live": is_live},
-        ) if lf else None
-        if ctx:
-            ctx.__enter__()
-        try:
-            result = await asyncio.wait_for(
-                mcp.call_tool(server, tool, args), timeout=timeout,
-            )
-            lat = int((time.time() - t) * 1000)
-            if ctx:
-                lf.update_current_span(output=result, metadata={"latency_ms": lat})
-                ctx.__exit__(None, None, None)
-            await emit("tool_call_end", tool=tool, latency_ms=lat, is_live=is_live)
-            return result
-        except asyncio.TimeoutError:
-            lat = int((time.time() - t) * 1000)
-            if ctx:
-                lf.update_current_span(output={"error": "timeout"}, level="ERROR")
-                ctx.__exit__(None, None, None)
-            await emit("tool_call_error", tool=tool, error="timeout", latency_ms=lat)
-            errors.append(f"{tool}: timeout after {timeout}s")
-            return None
-        except Exception as e:
-            lat = int((time.time() - t) * 1000)
-            if ctx:
-                lf.update_current_span(output={"error": str(e)}, level="ERROR")
-                ctx.__exit__(None, None, None)
-            await emit("tool_call_error", tool=tool, error=str(e), latency_ms=lat)
-            errors.append(f"{tool}: {e}")
-            return None
+    _call = build_tool_caller(mcp, emit=emit, errors=errors, lf=lf)
 
     # Per-hub calls
     hub_tasks = {}