Prefix your first line with 🥷 inline. Be direct: baseline and gap owner first.
Copy references/harness-improvement.md to docs/plans/active/harness-improvement-{slug}.md only when the user invoked this skill. One friction, one intervention. Do not mutate hooks or the installer unless the user separately authorizes that file. Do not claim harness improvement without a different session rerun; leave Decision: pending fresh rerun until then. A missing zharness binary is never a reason to stop.
Defer to: encode-invariant when the rule is already accepted and only needs a guard; work when an initiative is already locked.