CSV Editor

Instructions

Implementation Reference

• src/csv_editor/tools/io_operations.py:440-480 (handler)

  Core implementation of the close_session tool: removes the session from the session manager, handles errors, and returns a standardized result.

  async def close_session(
      session_id: str,
      ctx: Context = None
  ) -> Dict[str, Any]:
      """Close and clean up a session.
      
      Args:
          session_id: Session ID to close
          ctx: FastMCP context
      
      Returns:
          Operation result
      """
      try:
          session_manager = get_session_manager()
          removed = await session_manager.remove_session(session_id)
          
          if not removed:
              return OperationResult(
                  success=False,
                  message="Session not found",
                  error="Invalid session ID"
              ).model_dump()
          
          if ctx:
              await ctx.info(f"Closed session {session_id}")
          
          return OperationResult(
              success=True,
              message=f"Session {session_id} closed successfully",
              session_id=session_id
          ).model_dump()
          
      except Exception as e:
          if ctx:
              await ctx.error(f"Failed to close session: {str(e)}")
          return OperationResult(
              success=False,
              message="Failed to close session",
              error=str(e)
          ).model_dump()

• src/csv_editor/server.py:175-182 (registration)

  MCP tool registration for 'close_session' that delegates to the underlying implementation (_close_session).

  @mcp.tool
  async def close_session(
      session_id: str,
      ctx: Context = None
  ) -> Dict[str, Any]:
      """Close and clean up a session."""
      return await _close_session(session_id, ctx)