Durable chat sessions guide fails with workflow-node-module-error

[mrestrepoj10]

Following the "Durable chat sessions with Next.js, Workflow, and Redis" guide as written causes pnpm dev to fail during workflow bundling.

Versions:

• chat: 4.20.1
• @chat-adapter/slack: 4.20.1
• @chat-adapter/state-redis: 4.20.1
• workflow: 4.2.0-beta.70
• next: 16.1.6

The guide imports bot into workflows/durable-chat-session.ts and uses bot.reviver() inside the workflow. With the versions above, that pulls @chat-adapter/slack into the workflow bundle and fails with:

✘ [ERROR] You are attempting to use "@chat-adapter/slack" which depends on Node.js modules. Packages that depend on Node.js modules are not available in workflow functions.

lib/bot.ts:5:9:
  5 │   slack: createSlackAdapter(),
    │          ~~~~~~~~~~~~~~~~~~
    ╵          Move this function into a step function.

Expected:

• The docs example should work as written, or
• The guide should mention that bot cannot be imported into the workflow module and should only be used inside "use step" functions.

Workaround:
Keep the workflow on serialized thread/message data and only import @/lib/bot inside step functions.

[rayhanadev]

can confirm this error also appears with the @chat-adapter/discord lib as well. same workaround for now

async function loadBot() {
  const { bot } = await import("../../lib/bot");
  await bot.initialize();
  return bot;
}