# Weekly log One entry per week. The hypothesis and the metric are written **before** the change ships; the measurement is filled in by the following week's run. A week without a measurement is an unfinished week. | Week | Date | Change | Hypothesis | Metric watched | Expected | Measured | Verdict | |---|---|---|---|---|---|---|---| | 0 | 2026-10-24 | Instrumentation: Plausible tag on 1,206 pages, `Affiliate Click` / `Outbound Click` custom events, UTM on 479 outbound links, CTA blocks on 6 homepages + 6 hosting hubs, weekly loop installed | Without measurement every change is a guess | all | baseline established | n/a (setup) | keep | | 1 | 2026-10-24 | `.agents/product-marketing.md` (d82af02): ICP, pains, objections, proof policy, positioning — the source of truth every later week reads | Copy decisions were being re-litigated weekly; without fixed positioning each change invents its own | none (enabler); guardrail = no ranking loss | no regression | pending (week 2 run) | keep | --- ## Entry template ```markdown ### Week N — YYYY-MM-DD **Shipped:** **Hypothesis:** **Metric:** **Expected:** **Measured (week N+1):** **Verdict:** keep / revert / adjust — and why **Next:** ```