| 56 | |
| 57 | @cl.step(type="tool") |
| 58 | async def call_tool(tool_use): |
| 59 | tool_name = tool_use.name |
| 60 | tool_input = tool_use.input |
| 61 | |
| 62 | current_step = cl.context.current_step |
| 63 | current_step.name = tool_name |
| 64 | |
| 65 | # Identify which mcp is used |
| 66 | mcp_tools = cl.user_session.get("mcp_tools", {}) |
| 67 | mcp_name = None |
| 68 | |
| 69 | for connection_name, tools in mcp_tools.items(): |
| 70 | if any(tool.get("name") == tool_name for tool in tools): |
| 71 | mcp_name = connection_name |
| 72 | break |
| 73 | |
| 74 | if not mcp_name: |
| 75 | current_step.output = json.dumps({"error": f"Tool {tool_name} not found in any MCP connection"}) |
| 76 | return current_step.output |
| 77 | |
| 78 | mcp_session, _ = cl.context.session.mcp_sessions.get(mcp_name) |
| 79 | |
| 80 | if not mcp_session: |
| 81 | current_step.output = json.dumps({"error": f"MCP {mcp_name} not found in any MCP connection"}) |
| 82 | return current_step.output |
| 83 | |
| 84 | try: |
| 85 | current_step.output = await mcp_session.call_tool(tool_name, tool_input) |
| 86 | except Exception as e: |
| 87 | current_step.output = json.dumps({"error": str(e)}) |
| 88 | |
| 89 | return current_step.output |
| 90 | |
| 91 | async def call_claude(chat_messages): |
| 92 | msg = cl.Message(content="") |