Taiga MCP Bridge

Instructions

Implementation Reference

• src/server.py:850-868 (handler)

  The handler function implementing the 'list_epics' tool. It retrieves an authenticated Taiga client using the session_id, lists epics for the given project_id with optional filters, and returns the list of epics.

  @mcp.tool("list_epics", description="Lists epics within a specific project, optionally filtered.")
  def list_epics(session_id: str, project_id: int, **filters) -> List[Dict[str, Any]]:
      """Lists epics for a project. Optional filters like 'status', 'assigned_to' can be passed as keyword arguments."""
      logger.info(
          f"Executing list_epics 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_id=..., **filters)
          epics = taiga_client_wrapper.api.epics.list(project_id=project_id, **filters)
          # return [e.to_dict() for e in epics] # Remove .to_dict()
          return epics # Return directly
      except TaigaException as e:
          logger.error(
              f"Taiga API error listing epics for project {project_id}: {e}", exc_info=False)
          raise e
      except Exception as e:
          logger.error(
              f"Unexpected error listing epics for project {project_id}: {e}", exc_info=True)
          raise RuntimeError(f"Server error listing epics: {e}")

• src/server.py:39-52 (helper)

  Helper function used by 'list_epics' and other tools to retrieve the authenticated TaigaClientWrapper instance 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:850-850 (registration)

  The @mcp.tool decorator registers the 'list_epics' function as an MCP tool with the specified name and description.

  @mcp.tool("list_epics", description="Lists epics within a specific project, optionally filtered.")