ACP-MCP-Server

Instructions

Implementation Reference

• acp_mcp_server/interactive_manager.py:283-296 (handler)

  MCP tool handler for 'cancel_interaction' decorated with @mcp.tool(). Calls the InteractiveManager's cancel_interaction method and returns success message.

  @mcp.tool()
  async def cancel_interaction(run_id: str) -> str:
      """Cancel a pending interactive agent"""
      
      try:
          success = await manager.cancel_interaction(run_id)
          
          if success:
              return f"Successfully cancelled interaction: {run_id}"
          else:
              return f"No pending interaction found with ID: {run_id}"
              
      except Exception as e:
          return f"Error: {e}"

• acp_mcp_server/interactive_manager.py:223-229 (helper)

  Core implementation in InteractiveManager class: removes the run_id from pending_interactions if present and returns True/False.

  async def cancel_interaction(self, run_id: str) -> bool:
      """Cancel a pending interaction"""
      
      if run_id in self.pending_interactions:
          del self.pending_interactions[run_id]
          return True
      return False

• acp_mcp_server/server.py:89-89 (registration)

  Registers the interactive tools including 'cancel_interaction' by calling register_interactive_tools on the MCP instance.

  register_interactive_tools(self.mcp, self.interactive_manager)