github/github-mcp-server · error

failed to create GitHub MCP server: %w

Error message

failed to create GitHub MCP server: %w

What it means

Error "failed to create GitHub MCP server: %w" thrown in github/github-mcp-server.

Source

Thrown at internal/ghmcp/server.go:194

		WithToolsets(github.ResolvedEnabledToolsets(cfg.EnabledToolsets, cfg.EnabledTools)).
		WithTools(github.CleanTools(cfg.EnabledTools)).
		WithExcludeTools(cfg.ExcludeTools).
		WithServerInstructions().
		WithFeatureChecker(featureChecker)

	// Apply token scope filtering if scopes are known (for PAT filtering)
	if cfg.TokenScopes != nil {
		inventoryBuilder = inventoryBuilder.WithFilter(github.CreateToolScopeFilter(cfg.TokenScopes))
	}

	inventory, err := inventoryBuilder.Build()
	if err != nil {
		return nil, fmt.Errorf("failed to build inventory: %w", err)
	}

	ghServer, err := github.NewMCPServer(ctx, &cfg, deps, inventory)
	if err != nil {
		return nil, fmt.Errorf("failed to create GitHub MCP server: %w", err)
	}

	ghServer.AddReceivingMiddleware(addUserAgentsMiddleware(cfg, clients.restUATransp, clients.gqlHTTP))

	return ghServer, nil
}

type StdioServerConfig struct {
	// Version of the server
	Version string

	// GitHub Host to target for API requests (e.g. github.com or github.enterprise.com)
	Host string

	// GitHub Token to authenticate with the GitHub API
	Token string

	// EnabledToolsets is a list of toolsets to enable

View on GitHub (pinned to 0ea1f775a7)

When it happens

Trigger: Thrown at internal/ghmcp/server.go:194 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/fd357374de62299c. Report an issue: GitHub.