github/github-mcp-server · error

invalid %s %q: must be YYYY-MM-DD format

Error message

invalid %s %q: must be YYYY-MM-DD format

What it means

Error "invalid %s %q: must be YYYY-MM-DD format" thrown in github/github-mcp-server.

Source

Thrown at pkg/github/projects.go:1698

	if fullDatabaseID := mutation.AddProjectV2ItemByID.Item.FullDatabaseID; fullDatabaseID != "" {
		result["full_database_id"] = fullDatabaseID
		if itemID, err := strconv.ParseInt(fullDatabaseID, 10, 64); err == nil {
			result["item_id"] = itemID
		}
	}

	r, err := json.Marshal(result)
	if err != nil {
		return nil, nil, fmt.Errorf("failed to marshal response: %w", err)
	}

	return utils.NewToolResultText(string(r)), nil, nil
}

// validateDateFormat checks that a date string is in YYYY-MM-DD format.
func validateDateFormat(value, fieldName string) error {
	if _, err := time.Parse("2006-01-02", value); err != nil {
		return fmt.Errorf("invalid %s %q: must be YYYY-MM-DD format", fieldName, value)
	}
	return nil
}

// createProjectStatusUpdate creates a new status update for a project via GraphQL.
func createProjectStatusUpdate(ctx context.Context, gqlClient *githubv4.Client, owner, ownerType string, projectNumber int, body, status, startDate, targetDate string) (*mcp.CallToolResult, any, error) {
	// Validate inputs
	if ownerType != "user" && ownerType != "org" {
		return utils.NewToolResultError(fmt.Sprintf("invalid owner_type %q: must be \"user\" or \"org\"", ownerType)), nil, nil
	}
	if status != "" && !validProjectV2StatusUpdateStatuses[status] {
		return utils.NewToolResultError(fmt.Sprintf("invalid status %q: must be one of INACTIVE, ON_TRACK, AT_RISK, OFF_TRACK, COMPLETE", status)), nil, nil
	}
	if startDate != "" {
		if err := validateDateFormat(startDate, "start_date"); err != nil {
			return utils.NewToolResultError(err.Error()), nil, nil
		}
	}

View on GitHub (pinned to 0ea1f775a7)

When it happens

Trigger: Thrown at pkg/github/projects.go:1698 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of github/github-mcp-server@0ea1f775a7 (2026-08-15). Data as JSON: /api/errors/084e02e214781a24. Report an issue: GitHub.