MCP Apps Kit - v0.5.0
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    Type Alias MiddlewareWithResult<TResult>

    MiddlewareWithResult: (
        context: MiddlewareContext,
        next: () => Promise<TResult>,
    ) => Promise<TResult>

    Middleware function with result passing

    Allows middleware to inspect and transform results from downstream handlers. The generic type TResult represents the result type that flows through the chain.

    Type Parameters

    • TResult = unknown

      The type of result returned by the handler and middleware chain

    Type Declaration

    const logResult: MiddlewareWithResult<{ data: string }> = async (context, next) => {
      const result = await next();
      console.log("Result:", result.data);
      return result;
    };

    const addTimestamp: MiddlewareWithResult<ToolResult> = async (context, next) => {
      const result = await next();
      return {
        ...result,
        _meta: { ...result._meta, timestamp: Date.now() }
      };
    };

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