Technical buyers don't evaluate demos; they interrogate them. The API behavior, the rate limits, the permission edge case, the failure mode, and the demo that stalls on those questions loses the evaluation regardless of how polished its happy path looked. A live demo agent wins or dies on exactly this: hard questions, answered precisely, in the moment.
Why do technical evaluations break standard demos?
Because the questions are unpredictable and the honest answers live three layers deep. A recorded tour can't hear the question at all. A generalist human without SE support says "great question, let me find out," and the evaluation goes to sleep for a week per question. Technical buyers read both as the same signal: this vendor's depth is thin at the surface. Meanwhile their checklist is long, security posture, data flows, integration patterns, edge-case handling, and their patience for scheduling multiple calls to work through it is short.
What does "grounded to technical depth" require?
The agent's answers are only as deep as its corpus, so the grounding work is the whole game: product docs, API references, architecture notes that are public-safe, security documentation, and the honest FAQ your engineers answer weekly. Just as important are the boundaries: what the agent must not claim, which questions route to solution engineering, and the discipline to say "that's one for our architects, let me book them with your question attached." Technical buyers forgive routed questions and never forgive confident wrong answers, one hallucinated API behavior costs the whole evaluation's trust.
How does the session handle interrogation?
Three behaviors matter. Precision under interruption: the buyer cuts in constantly, and each answer has to land specifically, sourced from docs, shown on the live product where possible, rather than sliding into marketing paraphrase. Depth on demand: when the buyer wants twenty minutes on the permission model, the agenda bends there and returns later. Stamina: serious technical evaluations run thirty or forty minutes, which is precisely the session-versus-quick-hit divide, an agent that can hold a long, agenda-tracked interrogation is a different machine from a narrated tour. Test any vendor with your own hardest questions before believing the category label.
What still routes to humans?
Custom architecture reviews, POC scoping, anything where the honest answer is "it depends on your environment," and pricing structure. The agent's job is to clear the documented ninety percent so your scarce specialist hours start at the hard part, with the full technical transcript attached. (Disclosure: this is how we built Skippr's demo agent for technical evaluations; the grounding-plus-boundaries pattern is portable to any serious implementation.)
Questions buyers actually ask
Can an AI really satisfy a security reviewer?
On documented posture, yes, with sourced answers. The formal review still happens; the agent gets the committee to it faster by clearing the question backlog.
What if the agent gets something wrong?
Grounding, boundaries, and logged sessions make errors rare, findable, and fixable. Ask vendors how corrections propagate, an agent that rescans docs fixes once, everywhere.
Do technical buyers actually talk to it?
They're the most willing audience: they have specific questions and no interest in waiting for a scheduled human to answer them.
See it rather than read about it
The difference between a recording and a live agent is hard to argue and easy to watch. Fifteen minutes is enough to judge whether it fits your motion.