Add tool-name-prefix feature flag and Server.Prefix field (#192)

* Update feature command to support tool-name-prefix

Added tool-name-prefix to the docker mcp feature command:

- Added to available features list in 'feature enable' help text
- Added validation in isKnownFeature() function
- Added usage hints when enabling the feature
- Added to 'feature ls' command output with description
- Added description in feature list display

Usage:
  docker mcp feature enable tool-name-prefix
  docker mcp feature disable tool-name-prefix
  docker mcp feature ls

When enabled, the feature automatically prefixes all tool names
with their server name (e.g., 'search' becomes 'github:search'),
preventing name conflicts when multiple servers provide tools with
the same name.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

* update docs

---------

Co-authored-by: Claude <noreply@anthropic.com>

Author: slimslenderslacks

cmd/docker-mcp/commands/feature.go

@@ -39,14 +39,15 @@ func featureEnableCommand(dockerCli command.Cli) *cobra.Command {
 Available features:
   oauth-interceptor      Enable GitHub OAuth flow interception for automatic authentication
   mcp-oauth-dcr          Enable Dynamic Client Registration (DCR) for automatic OAuth client setup
-  dynamic-tools          Enable internal MCP management tools (mcp-find, mcp-add, mcp-remove)`,
+  dynamic-tools          Enable internal MCP management tools (mcp-find, mcp-add, mcp-remove)
+  tool-name-prefix       Prefix all tool names with server name to avoid conflicts`,
 		Args: cobra.ExactArgs(1),
 		RunE: func(_ *cobra.Command, args []string) error {
 			featureName := args[0]
 
 			// Validate feature name
 			if !isKnownFeature(featureName) {
-				return fmt.Errorf("unknown feature: %s\n\nAvailable features:\n  oauth-interceptor      Enable GitHub OAuth flow interception\n  mcp-oauth-dcr          Enable Dynamic Client Registration for automatic OAuth setup\n  dynamic-tools          Enable internal MCP management tools", featureName)
+				return fmt.Errorf("unknown feature: %s\n\nAvailable features:\n  oauth-interceptor      Enable GitHub OAuth flow interception\n  mcp-oauth-dcr          Enable Dynamic Client Registration for automatic OAuth setup\n  dynamic-tools          Enable internal MCP management tools\n  tool-name-prefix       Prefix all tool names with server name", featureName)
 			}
 
 			// Enable the feature
@@ -83,6 +84,13 @@ Available features:
 				fmt.Println("  - mcp-add: add MCP servers to the registry and reload configuration")
 				fmt.Println("  - mcp-remove: remove MCP servers from the registry and reload configuration")
 				fmt.Println("\nNo additional flags are needed - this applies to all gateway runs.")
+			case "tool-name-prefix":
+				fmt.Println("\nThis feature enables automatic prefixing of tool names with server names.")
+				fmt.Println("When enabled, all tools are automatically prefixed with their server name:")
+				fmt.Println("  - Example: 'search' becomes 'github:search'")
+				fmt.Println("  - Prevents name conflicts when multiple servers provide tools with the same name")
+				fmt.Println("  - Individual servers can override this with the 'prefix' field in their configuration")
+				fmt.Println("\nNo additional flags are needed - this applies to all gateway runs.")
 			}
 
 			return nil
@@ -137,7 +145,7 @@ func featureListCommand(dockerCli command.Cli) *cobra.Command {
 			fmt.Println()
 
 			// Show all known features
-			knownFeatures := []string{"oauth-interceptor", "mcp-oauth-dcr", "dynamic-tools"}
+			knownFeatures := []string{"oauth-interceptor", "mcp-oauth-dcr", "dynamic-tools", "tool-name-prefix"}
 			for _, feature := range knownFeatures {
 				status := "disabled"
 				if isFeatureEnabledFromCli(dockerCli, feature) {
@@ -154,6 +162,8 @@ func featureListCommand(dockerCli command.Cli) *cobra.Command {
 					fmt.Printf("  %-20s %s\n", "", "Enable Dynamic Client Registration (DCR) for automatic OAuth client setup")
 				case "dynamic-tools":
 					fmt.Printf("  %-20s %s\n", "", "Enable internal MCP management tools (mcp-find, mcp-add, mcp-remove)")
+				case "tool-name-prefix":
+					fmt.Printf("  %-20s %s\n", "", "Prefix all tool names with server name to avoid conflicts")
 				}
 				fmt.Println()
 			}
@@ -217,6 +227,7 @@ func isKnownFeature(feature string) bool {
 		"oauth-interceptor",
 		"mcp-oauth-dcr",
 		"dynamic-tools",
+		"tool-name-prefix",
 	}
 
 	for _, known := range knownFeatures {

docs/generator/reference/docker_mcp_feature_enable.yaml

@@ -7,6 +7,7 @@ long: |-
       oauth-interceptor      Enable GitHub OAuth flow interception for automatic authentication
       mcp-oauth-dcr          Enable Dynamic Client Registration (DCR) for automatic OAuth client setup
       dynamic-tools          Enable internal MCP management tools (mcp-find, mcp-add, mcp-remove)
+      tool-name-prefix       Prefix all tool names with server name to avoid conflicts
 usage: docker mcp feature enable <feature-name>
 pname: docker mcp feature
 plink: docker_mcp_feature.yaml

docs/generator/reference/mcp_feature_enable.md

@@ -7,6 +7,7 @@ Available features:
   oauth-interceptor      Enable GitHub OAuth flow interception for automatic authentication
   mcp-oauth-dcr          Enable Dynamic Client Registration (DCR) for automatic OAuth client setup
   dynamic-tools          Enable internal MCP management tools (mcp-find, mcp-add, mcp-remove)
+  tool-name-prefix       Prefix all tool names with server name to avoid conflicts
 
 
 <!---MARKER_GEN_END-->