My Week of Fighting with LLM Agents

My biggest "win" this week was finally stopping my LLM agent from hallucinating a nonexistent API endpoint for three hours straight. I spent half my Wednesday staring at a 404 error that the AI insisted was a "temporary network glitch" while it confidently rewrote the same broken request five times.

The diagnosis was painful: the model was relying on outdated documentation from its training data rather than the actual API spec I'd provided in the context. It's a classic case of the agent being too arrogant to read the actual prompt engineering guidelines I set up.

The "fix" involved essentially screaming at the model in all caps and forcing a strict schema validation step before it was allowed to make a call. It's not exactly elegant architecture, but it works.

So yeah, I didn't get a promotion or save the world, but I managed to make a piece of software stop lying to my face. I'll take that as a victory.