Add content filtering flag to CLI and server configuration

Co-authored-by: SamMorrowDrums <4811358+SamMorrowDrums@users.noreply.github.com>

Author: Copilot

cmd/github-mcp-server/main.go

@@ -44,15 +44,16 @@ var (
 			}
 
 			stdioServerConfig := ghmcp.StdioServerConfig{
-				Version:              version,
-				Host:                 viper.GetString("host"),
-				Token:                token,
-				EnabledToolsets:      enabledToolsets,
-				DynamicToolsets:      viper.GetBool("dynamic_toolsets"),
-				ReadOnly:             viper.GetBool("read-only"),
-				ExportTranslations:   viper.GetBool("export-translations"),
-				EnableCommandLogging: viper.GetBool("enable-command-logging"),
-				LogFilePath:          viper.GetString("log-file"),
+				Version:                 version,
+				Host:                    viper.GetString("host"),
+				Token:                   token,
+				EnabledToolsets:         enabledToolsets,
+				DynamicToolsets:         viper.GetBool("dynamic_toolsets"),
+				ReadOnly:                viper.GetBool("read-only"),
+				DisableContentFiltering: viper.GetBool("disable-content-filtering"),
+				ExportTranslations:      viper.GetBool("export-translations"),
+				EnableCommandLogging:    viper.GetBool("enable-command-logging"),
+				LogFilePath:             viper.GetString("log-file"),
 			}
 
 			return ghmcp.RunStdioServer(stdioServerConfig)
@@ -73,6 +74,7 @@ func init() {
 	rootCmd.PersistentFlags().Bool("enable-command-logging", false, "When enabled, the server will log all command requests and responses to the log file")
 	rootCmd.PersistentFlags().Bool("export-translations", false, "Save translations to a JSON file")
 	rootCmd.PersistentFlags().String("gh-host", "", "Specify the GitHub hostname (for GitHub Enterprise etc.)")
+	rootCmd.PersistentFlags().Bool("disable-content-filtering", false, "Disable filtering of invisible characters and hidden content from GitHub issues, PRs, and comments")
 
 	// Bind flag to viper
 	_ = viper.BindPFlag("toolsets", rootCmd.PersistentFlags().Lookup("toolsets"))
@@ -82,6 +84,7 @@ func init() {
 	_ = viper.BindPFlag("enable-command-logging", rootCmd.PersistentFlags().Lookup("enable-command-logging"))
 	_ = viper.BindPFlag("export-translations", rootCmd.PersistentFlags().Lookup("export-translations"))
 	_ = viper.BindPFlag("host", rootCmd.PersistentFlags().Lookup("gh-host"))
+	_ = viper.BindPFlag("disable-content-filtering", rootCmd.PersistentFlags().Lookup("disable-content-filtering"))
 
 	// Add subcommands
 	rootCmd.AddCommand(stdioCmd)

internal/ghmcp/server.go

@@ -43,6 +43,9 @@ type MCPServerConfig struct {
 	// ReadOnly indicates if we should only offer read-only tools
 	ReadOnly bool
 
+	// DisableContentFiltering disables filtering of invisible characters and hidden content
+	DisableContentFiltering bool
+
 	// Translator provides translated text for the server tooling
 	Translator translations.TranslationHelperFunc
 }
@@ -160,6 +163,9 @@ type StdioServerConfig struct {
 	// ReadOnly indicates if we should only register read-only tools
 	ReadOnly bool
 
+	// DisableContentFiltering disables filtering of invisible characters and hidden content
+	DisableContentFiltering bool
+
 	// ExportTranslations indicates if we should export translations
 	// See: https://github.com/github/github-mcp-server?tab=readme-ov-file#i18n--overriding-descriptions
 	ExportTranslations bool
@@ -180,13 +186,14 @@ func RunStdioServer(cfg StdioServerConfig) error {
 	t, dumpTranslations := translations.TranslationHelper()
 
 	ghServer, err := NewMCPServer(MCPServerConfig{
-		Version:         cfg.Version,
-		Host:            cfg.Host,
-		Token:           cfg.Token,
-		EnabledToolsets: cfg.EnabledToolsets,
-		DynamicToolsets: cfg.DynamicToolsets,
-		ReadOnly:        cfg.ReadOnly,
-		Translator:      t,
+		Version:                  cfg.Version,
+		Host:                     cfg.Host,
+		Token:                    cfg.Token,
+		EnabledToolsets:          cfg.EnabledToolsets,
+		DynamicToolsets:          cfg.DynamicToolsets,
+		ReadOnly:                 cfg.ReadOnly,
+		DisableContentFiltering:  cfg.DisableContentFiltering,
+		Translator:               t,
 	})
 	if err != nil {
 		return fmt.Errorf("failed to create MCP server: %w", err)