Real use cases, experiments and field notes. Every post shows a pattern that also holds up at a client.
How a Claude agent finds the receipts for open bank transactions on its own – across several mailboxes and straight from online-shop customer accounts – and books them via the Lexware Office API. The agent collects and books, the human decides.
UniFi only accepts an IPv4 address as its external portal server, and CloudFront has no static IP. A stateless micro-redirector in front of a serverless backend closes the gap – a pattern for any vendor constraint of this kind.
A public LLM chatbot needs several independent safeguards: prompt hardening, a guardrail, rate limiting without WAF, a hard cost kill switch and EU-only routing. What I built, what I measured and what I learned.
How I cut the AWS bill of my one-person account by around 40 percent with invoice analysis, a review board, gated measures and a budget as code – and which line items did not go down.
How I used parallel Claude Code sessions, a coordinator and a review board of agent roles to build and run a domain portal from order to invoice, and which rules made the agent team safe to work with.
