When building an autonomous agent to conduct technical engineering interviews, the margin for error is zero. If an AI customer service bot hallucinates a return policy, it is an inconvenience. If an AI interviewer hallucinates a candidate's technical score or gets tricked by prompt injection into discussing philosophical hypotheticals instead of system design, it destroys the integrity of the hiring pipeline. Standard conversational AI wrappers—where a massive system prompt is fed into a...