perf(build): bundle dist with esbuild so installs fetch only native dependencies

package.json

@@ -19,7 +19,7 @@
 		"skills"
 	],
 	"scripts": {
-		"build": "tsc -p tsconfig.build.json",
+		"build": "node scripts/build.mjs && tsc -p tsconfig.build.json",
 		"bench": "node scripts/bench.mjs",
 		"typecheck": "tsc --noEmit",
 		"test": "tsx --test test/*.test.ts",
@@ -48,18 +48,18 @@
 		"access": "public"
 	},
 	"dependencies": {
-		"@inquirer/checkbox": "^5.2.2",
-		"@jridgewell/trace-mapping": "^0.3.31",
-		"@modelcontextprotocol/client": "2.0.0",
 		"@napi-rs/keyring": "^2.1.0",
-		"add-mcp": "^2.4.0",
-		"chokidar": "^4.0.3",
-		"es-module-lexer": "^3.0.3",
 		"esbuild": "^0.25.12",
 		"ps-list": "^9.0.0"
 	},
 	"devDependencies": {
+		"@inquirer/checkbox": "^5.2.2",
+		"@jridgewell/trace-mapping": "^0.3.31",
+		"@modelcontextprotocol/client": "2.0.0",
 		"@types/node": "^24.5.2",
+		"add-mcp": "^2.4.0",
+		"chokidar": "^4.0.3",
+		"es-module-lexer": "^3.0.3",
 		"msw": "3.0.3",
 		"tsx": "^4.20.5",
 		"typescript": "^5.9.2"

scripts/build.mjs

@@ -0,0 +1,38 @@
+#!/usr/bin/env node
+// Builds dist/ as an esbuild bundle instead of one file per module.
+//
+// Every pure-JS dependency is bundled, so `npm install @kodycodes/cli` only
+// has to fetch the packages that ship native code or platform binaries (the
+// `dependencies` in package.json): fewer tarballs and a fraction of the bytes,
+// which is most of what a cold `npx @kodycodes/cli` waits on. Code splitting
+// keeps every `await import()` in src a separate chunk, so a command still
+// loads only what it uses. `kody:*` is resolved by workerd at run time and msw
+// is installed into the Kody cache on demand, so both stay unbundled.
+//
+// CommonJS dependencies call `require()` for Node builtins; an ESM bundle has
+// no `require`, so each output file gets one from `createRequire`.
+import { rmSync } from 'node:fs'
+import { createRequire } from 'node:module'
+import { build } from 'esbuild'
+
+const pkg = createRequire(import.meta.url)('../package.json')
+
+rmSync('dist', { recursive: true, force: true })
+
+await build({
+	entryPoints: ['src/bin.ts', 'src/cli.ts'],
+	outdir: 'dist',
+	bundle: true,
+	splitting: true,
+	format: 'esm',
+	platform: 'node',
+	target: 'node22',
+	mainFields: ['module', 'main'],
+	external: [...Object.keys(pkg.dependencies), 'msw', 'kody:*'],
+	banner: {
+		js: "import { createRequire as __createRequire } from 'node:module'; const require = __createRequire(import.meta.url);",
+	},
+	sourcemap: true,
+	sourcesContent: false,
+	logLevel: 'warning',
+})

tsconfig.build.json

@@ -2,10 +2,10 @@
 	"extends": "./tsconfig.json",
 	"compilerOptions": {
 		"noEmit": false,
-		"outDir": "dist",
-		"rootDir": "src",
+		"emitDeclarationOnly": true,
 		"declaration": true,
-		"sourceMap": true
+		"outDir": "dist",
+		"rootDir": "src"
 	},
 	"include": ["src/**/*.ts"]
 }