McpBuilder class

Declarative MCP capability builder.

Use inside McpController.configure to register tools, resources, prompts, resource templates, and custom method handlers — all in one place, without boilerplate.

@override
void configure(McpBuilder mcp) {
  mcp.tool(
    name: 'search',
    description: 'Search the documentation',
    handler: (req) async {
      final query = req.params.arguments?['query'] as String? ?? '';
      return CallToolResult(content: [TextContent(text: '...')]);
    },
  );

  mcp.resource(
    name: 'readme',
    uri: rq.url(''),
    handler: (req) async => ReadResourceResult(contents: [...]),
  );
}

Constructors

McpBuilder()

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

buildPromptsResult() → ListPromptsResult

buildResourcesResult() → ListResourcesResult

buildResourceTemplatesResult() → ListResourceTemplatesResult

buildToolsResult() → ListToolsResult

method(String name, MethodHandler handler) → void

Register a custom MCP method handler.

methodHandler(String name) → MethodHandler?

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

prompt({required String name, String? title, String? description, List<PromptArgument>? arguments, required PromptHandler handler}) → void

Register an MCP prompt.

promptHandler(String name) → PromptHandler?

resource({required String name, required String uri, String? title, String? description, String? mimeType, required ResourceHandler handler}) → void

Register a readable MCP resource.

resourceHandlerByUri(String uri) → ResourceHandler?

Look up a resource handler for an incoming resources/read URI.

resourceTemplate({required String name, required String uriTemplate, String? title, String? description, String? mimeType}) → void

Register a resource URI template.

tool({required String name, String? title, String? description, ToolSchema? inputSchema, ToolSchema? outputSchema, ToolAnnotations? annotations, required ToolHandler handler}) → void

Register an MCP tool.

toolHandler(String name) → ToolHandler?

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited