How to Build a Real-Time Slack Agent Using Bun, Hono, and Event-Driven Orchestration (opens in new tab)

Building Slack bots is fun until you try to integrate heavy AI pipelines. If you are building an AI agent that runs sequential steps (e.g., Planning -> Web Searching -> Code Execution -> Summarization), the process is going to take 10 to 20 seconds. Here is the problem: Slack slash commands MUST receive an HTTP response within 3,000 milliseconds. If your server takes 3.1 seconds to respond, the user gets a generic "operation_timeout" error. In this post, I will share the exact architecture we...