Design a computer-use agent that operates a browser to complete tasks (book travel, fill forms) reliably.
An agent that clicks through a real website is slow, brittle, and a single wrong click away from a costly mistake. The architecture comes down to perception, action, and guardrails around irreversible steps. Here is how to build it.
Updated Sep 2026 · Grounded in real GenAI, LLM, and AI/ML engineering interview loops and written to a senior-engineer editorial bar.
An agent that clicks through a real website is slow, brittle, and a single wrong click away from a costly mistake. The architecture comes down to perception, action, and guardrails around irreversible steps. Here is how to build it.
Lead with where the obvious approach breaks, because that is the judgment they are screening for — most candidates jump straight to the happy path and lose the room.
Then walk the failure back through the pipeline in order, naming the one metric the customer's exec sponsor actually cares about before you propose the fix.
