import { mkdir, writeFile, access } from "node:fs/promises";
import { join } from "node:path";
import pc from "picocolors";
const CONFIG_TEMPLATE = `import { defineConfig } from "@mcx/core";
export default defineConfig({
// Sandbox configuration
sandbox: {
timeout: 30000,
maxMemory: 256,
},
// Available adapters
adapters: {
// Add your adapters here
// example: "./adapters/example.ts",
},
// Skill directories
skills: ["./skills"],
});
`;
const EXAMPLE_SKILL = `import { defineSkill } from "@mcx/core";
export default defineSkill({
name: "hello",
description: "A simple hello world skill",
inputs: {
name: {
type: "string",
description: "Name to greet",
default: "World",
},
},
async run({ inputs }) {
return \`Hello, \${inputs.name}!\`;
},
});
`;
const EXAMPLE_ADAPTER = `import { defineAdapter } from "@mcx/core";
export default defineAdapter({
name: "example",
description: "An example adapter",
tools: {
greet: {
description: "Greet someone",
parameters: {
name: { type: "string", description: "Name to greet" },
},
async execute({ name }) {
return \`Hello, \${name}!\`;
},
},
},
});
`;
async function exists(path: string): Promise<boolean> {
try {
await access(path);
return true;
} catch {
return false;
}
}
export async function initCommand(): Promise<void> {
const cwd = process.cwd();
console.log(pc.cyan("Initializing MCX project...\n"));
// Create mcx.config.ts
const configPath = join(cwd, "mcx.config.ts");
if (await exists(configPath)) {
console.log(pc.yellow(" mcx.config.ts already exists, skipping"));
} else {
await writeFile(configPath, CONFIG_TEMPLATE);
console.log(pc.green(" Created mcx.config.ts"));
}
// Create skills directory
const skillsDir = join(cwd, "skills");
if (await exists(skillsDir)) {
console.log(pc.yellow(" skills/ already exists, skipping"));
} else {
await mkdir(skillsDir, { recursive: true });
await writeFile(join(skillsDir, "hello.ts"), EXAMPLE_SKILL);
console.log(pc.green(" Created skills/ with example skill"));
}
// Create adapters directory
const adaptersDir = join(cwd, "adapters");
if (await exists(adaptersDir)) {
console.log(pc.yellow(" adapters/ already exists, skipping"));
} else {
await mkdir(adaptersDir, { recursive: true });
await writeFile(join(adaptersDir, "example.ts"), EXAMPLE_ADAPTER);
console.log(pc.green(" Created adapters/ with example adapter"));
}
console.log(pc.cyan("\nMCX project initialized!"));
console.log(pc.dim("\nNext steps:"));
console.log(pc.dim(" 1. Edit mcx.config.ts to configure your project"));
console.log(pc.dim(" 2. Add skills in the skills/ directory"));
console.log(pc.dim(" 3. Run 'mcx serve' to start the MCP server"));
}
