Tools
Enable LLMs to perform actions through your server
With xsSchema, the parameters here can support multiple libraries such as Zod, Valibot, ArkType, Effect Schema, Sury... at the same time.
server.addTool
import { createServer } from '@xsmcp/server-shared'
import { description, number, object, pipe } from 'valibot'
const server = createServer({ ...options })
server.addTool({
description: 'Adds two numbers',
execute: ({ a, b }) => [{ text: `The sum of ${a} and ${b} is ${a + b}.`, type: 'text' }],
name: 'add',
parameters: object({
a: pipe(
number(),
description('First number'),
),
b: pipe(
number(),
description('Second number'),
),
}),
})defineTool
import { createServer, defineTool } from '@xsmcp/server-shared'
import { description, number, object, pipe } from 'valibot'
const tool = defineTool({
description: 'Adds two numbers',
execute: ({ a, b }) => [{ text: `The sum of ${a} and ${b} is ${a + b}.`, type: 'text' }],
name: 'add',
parameters: object({
a: pipe(
number(),
description('First number'),
),
b: pipe(
number(),
description('Second number'),
),
}),
})
const server = createServer({ ...options })
server.addTool(tool)