Sohail Khan is a Senior Full Stack Developer working with AI agents and automation. Tech Lead at LoopxCorp. He writes about backend engineering, AI integration and practical system design.
A founder asked for an autonomous AI agent to watch reviews around the clock. I shipped a cron job, one LLM call and a Slack webhook. Here is the code and the framework for knowing when a script beats an agent.
A support agent that worked perfectly in the demo broke three ways in production. Here is what went wrong and the exact fixes: retries, guardrails and cost aware model routing.
A user tapped Pay twice and got charged twice. The fix is not disabling the button. It is idempotency keys, and here is the exact server code.