#guardrails

The post landed because it says plainly what many agent builders already feel. Once a model can call APIs, modify files, run scripts, control a browser, and touch MCP tools, the problem stops being output quality and turns into execution control.

A high-signal Hacker News discussion points to research arguing that LLM guardrails can behave very differently across languages, with reported score shifts of 36-53% when only policy language changes.