March 2026
Engineering articles from the Sandbox0 team, grouped by publication date.
View all of 2026AI Hallucinated Links: Building a Semantic 404 Resolver for AI Agents
AI agents often request plausible-but-wrong URLs like /docs/self-hosting or /docs/deploy/single-cluster and land on a 404 page. This post explains why static redirect tables do not scale, and how to build a local semantic 404 resolver that maps hallucinated links to the most likely canonical page without creating soft 404s.
API Key Security for AI Agents: How to Keep Secrets Out of the Sandbox
The standard advice for AI agent API key security is to use a local proxy that swaps fake tokens for real ones. Sandbox0 goes further: credentials are injected at the kernel network layer, so the agent process never holds a token — real or phantom.