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What makes browser and computer-use agents unreliable, and how do you make them robust?

Agents that drive a browser or screen fail in ways chat agents never do: stale DOM, dynamic pages, wrong clicks. The signal is the grounding and reliability techniques that turn a flaky demo into something usable.

Updated Aug 2026 · Grounded in real Applied AI Engineer interview loops and written to a senior-engineer editorial bar.

Agents that drive a browser or screen fail in ways chat agents never do: stale DOM, dynamic pages, wrong clicks. The signal is the grounding and reliability techniques that turn a flaky demo into something usable.

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