Taiga MCP Bridge

Instructions

Implementation Reference

• src/server.py:274-292 (handler)

  The handler function implementing the list_user_stories MCP tool. It retrieves user stories from a Taiga project using the authenticated client and supports optional filters.

  @mcp.tool("list_user_stories", description="Lists user stories within a specific project, optionally filtered.")
  def list_user_stories(session_id: str, project_id: int, **filters) -> List[Dict[str, Any]]:
      """Lists user stories for a project. Optional filters like 'milestone', 'status', 'assigned_to' can be passed as keyword arguments."""
      logger.info(
          f"Executing list_user_stories for project {project_id}, session {session_id[:8]}, filters: {filters}")
      taiga_client_wrapper = _get_authenticated_client(session_id) # Use wrapper variable name
      try:
          # Use pytaigaclient syntax: client.resource.list(project=..., **filters)
          stories = taiga_client_wrapper.api.user_stories.list(project=project_id, **filters)
          # return [s.to_dict() for s in stories] # Remove .to_dict()
          return stories # Return directly
      except TaigaException as e:
          logger.error(
              f"Taiga API error listing user stories for project {project_id}: {e}", exc_info=False)
          raise e
      except Exception as e:
          logger.error(
              f"Unexpected error listing user stories for project {project_id}: {e}", exc_info=True)
          raise RuntimeError(f"Server error listing user stories: {e}")

• src/server.py:39-52 (helper)

  Helper function used by list_user_stories (and other tools) to get the authenticated Taiga client from the session store.

  def _get_authenticated_client(session_id: str) -> TaigaClientWrapper:
      """
      Retrieves the authenticated TaigaClientWrapper for a given session ID.
      Raises PermissionError if the session is invalid or not found.
      """
      client = active_sessions.get(session_id)
      # Also check if the client object itself exists and is authenticated
      if not client or not client.is_authenticated:
          logger.warning(f"Invalid or expired session ID provided: {session_id}")
          # Raise PermissionError - FastMCP will map this to an appropriate error response
          raise PermissionError(
              f"Invalid or expired session ID: '{session_id}'. Please login again.")
      logger.debug(f"Retrieved valid client for session ID: {session_id}")
      return client

• src/server.py:274-274 (registration)

  The @mcp.tool decorator registers the list_user_stories function as an MCP tool.

  @mcp.tool("list_user_stories", description="Lists user stories within a specific project, optionally filtered.")