core practice · system design prompt
Design exercise: Browser & Computer-use Agents
DOM and accessibility-tree control, screenshots, visual grounding, action planning, waits, recovery, and confirmation. Implement designOutline() returning non-empty values for: observation, boundedAction, stateVerification. Each value must name a concrete mechanism or decision.
The mechanism
Computer use is closed-loop control: observe current state, choose one bounded action, execute, verify the resulting state, and recover from drift.
Expected evidence
A design outline with observation, boundedAction, stateVerification plus an explicit failure mode or trade-off.
Try this drill in the practice workspace →
Hints when you need them
- Name the failure mode before selecting the mechanism.