Prism MCP

Instructions

Implementation Reference

• src/tools/handlers.ts:204-216 (handler)

  The handler function that processes the 'brave_answers' tool, validates its arguments, and performs the search.

  export async function braveAnswersHandler(args: unknown) {
    if (!isBraveAnswersArgs(args)) {
      throw new Error("Invalid arguments for brave_answers");
    }
  
    const { query, model = "brave" } = args;
    const answer = await performBraveAnswers(query, model);
  
    return {
      content: [{ type: "text", text: answer }],
      isError: false,
    };
  }

• src/tools/definitions.ts:221-241 (schema)

  The definition of the 'brave_answers' tool including its schema and description.

  export const BRAVE_ANSWERS_TOOL: Tool = {
    name: "brave_answers",
    description:
      "Returns direct AI answers grounded in Brave Search using Brave AI Grounding. " +
      "Uses an OpenAI-compatible chat completions endpoint and is best for concise answer generation with live web grounding.",
    inputSchema: {
      type: "object",
      properties: {
        query: {
          type: "string",
          description: "Question or prompt to answer",
        },
        model: {
          type: "string",
          description: "Model name for Brave AI Grounding (default: brave)",
          default: "brave",
        },
      },
      required: ["query"],
    },
  };

• src/tools/definitions.ts:308-317 (helper)

  The type guard function used to validate the input arguments for the 'brave_answers' tool.

  export function isBraveAnswersArgs(
    args: unknown
  ): args is { query: string; model?: string } {
    return (
      typeof args === "object" &&
      args !== null &&
      "query" in args &&
      typeof (args as { query: string }).query === "string"
    );
  }