fix(llms): make debug logs removable by consumer bundles

packages/llms/src/utils.test.ts

@@ -1,7 +1,66 @@
+import { fileURLToPath } from 'node:url'
+import { build, minify } from 'vite'
 import { describe, expect, it } from 'vitest'
 
 import { modelPatch, normalizeModelName } from './utils'
 
+describe('modelPatch', () => {
+	it('remains executable when a consumer bundle drops console calls', async () => {
+		const entryId = 'virtual:drop-console-entry'
+		const resolvedEntryId = `\0${entryId}`
+		const resultKey = '__PAGE_AGENT_DROP_CONSOLE_TEST_RESULT__'
+		const utilsPath = fileURLToPath(new URL('./utils.ts', import.meta.url))
+
+		const buildResult = await build({
+			configFile: false,
+			logLevel: 'silent',
+			plugins: [
+				{
+					name: 'drop-console-test-entry',
+					resolveId(id) {
+						if (id === entryId) return resolvedEntryId
+					},
+					load(id) {
+						if (id !== resolvedEntryId) return
+						return `
+							import { modelPatch } from ${JSON.stringify(utilsPath)}
+							globalThis[${JSON.stringify(resultKey)}] = modelPatch({ model: 'qwen-plus' })
+						`
+					},
+				},
+			],
+			build: {
+				minify: false,
+				rollupOptions: { input: entryId },
+				write: false,
+			},
+		})
+
+		const buildOutputs = Array.isArray(buildResult) ? buildResult : [buildResult]
+		const chunk = buildOutputs
+			.flatMap((output) => ('output' in output ? output.output : []))
+			.find((output) => output.type === 'chunk')
+		expect(chunk).toBeDefined()
+		if (!chunk || chunk.type !== 'chunk') throw new Error('Vite did not produce an output chunk')
+
+		const optimizedBundle = await minify('drop-console-bundle.js', chunk.code, {
+			compress: { dropConsole: true },
+			mangle: false,
+		})
+		expect(optimizedBundle.code).not.toMatch(/\bconsole\b/)
+
+		const moduleUrl = `data:text/javascript;base64,${Buffer.from(optimizedBundle.code).toString('base64')}`
+		await import(/* @vite-ignore */ moduleUrl)
+
+		const testGlobals = globalThis as typeof globalThis & Record<string, unknown>
+		expect(testGlobals[resultKey]).toEqual({
+			model: 'qwen-plus',
+			enable_thinking: false,
+		})
+		delete testGlobals[resultKey]
+	})
+})
+
 describe('normalizeModelName', () => {
 	it.each([
 		['gpt-5.2', 'gpt-52'],

packages/llms/src/utils.ts

@@ -6,7 +6,11 @@ import * as z from 'zod/v4'
 
 import type { Tool } from './types'
 
-const debug = console.debug.bind(console, chalk.gray('[LLM]'))
+// Keep console access inside the wrapper so bundlers can drop it without
+// replacing the callable logger itself with `undefined`.
+function debug(...args: unknown[]) {
+	console.debug(chalk.gray('[LLM]'), ...args)
+}
 
 /**
  * Convert Zod schema to OpenAI tool format