Interaction INP Matrix

Use this when a plan claims responsiveness from means, startup time, or one happy-path benchmark.

Rule

Track interaction-level p50/p75/p95/p99 latency by cohort and mode.

Editor Interactions

• type
• select
• select then type
• select-all
• copy
• paste
• drag selection
• scroll to far group
• click far group then type
• open menu
• expand/collapse boundary
• materialize hidden content
• remote update

Lab Proxies

When real INP is unavailable, record event-to-update and event-to-paint timings with the same interaction names.

Reject

• average-only tables
• startup-only wins as proof of editor responsiveness
• shell/virtualized wins without copy/paste/selection follow-up rows