Simplify an interface

Remove obstacles between the user and the main task without removing necessary capability.

Find the excess

Identify the primary goal and the information required to complete it.
Remove repeated copy, duplicate actions, decorative noise, and containers that do not clarify grouping.
Reduce unnecessary variation in colors, type sizes, button styles, spacing, and surface treatments.
Prefer one obvious primary action and a small number of clearly subordinate actions.
Use progressive disclosure for advanced or infrequent controls, but keep essential information visible.

Do not hide required actions behind mystery interactions.
Do not remove labels, focus states, accessibility semantics, error messages, or recovery paths.
Do not flatten genuinely complex information until it becomes harder to understand.
Prefer spacing and alignment over nested cards; prefer plain language over explanatory copy.

Verify that the simplified result still supports the complete task, including its important states, at the relevant screen sizes.