Regular case · derived from the record · Platform

Meta: a catalog for ads, not Marketplace, and the preflight that refuses it

2 merges over one day on the ads surface, #2427 to #2433. Arc 139 of 139 by length.

The arc, on its own days

2026-09-21#2427#2433
1 feature1 bugfix

The surface's whole history, this arc's weeks in indigo

2026-08-292026-09-21

8 merges on ads in the corpus; this arc is 2 of them.

The merges, verbatim

  1. Meta: a catalog for ads, not Marketplace, and the preflight that refuses it

    #2427 · 2026-09-21 · feature

  2. Stress both ads engines at report scale, and fix what that found

    #2433 · 2026-09-21 · bugfix

What this page is

No one has written this case yet. Everything on this page is derived from the pull-request record by the same deterministic rules as the corpus: a feature or infrastructure merge opens an arc, and bug fixes, refactors, tests, and docs on the same surface within forty-five days follow it. Titles are verbatim from GitHub. Nothing here is a claim beyond the record.

walkthrough

An arc page derived from the record, read top to bottom, then the ops case's before and after dragged across the same viewport.

The same film plays on every regular page: it reads arc #212, then one premier case's before and after, not this arc in particular.

2026-09-21 · The studio recorder against production (www.jakelawrence.xyz): headless Chromium, 390 by 844 at 2x, the site's own bumpers and music, nothing staged · in the studio

Written up

No premier case cites this arc yet. It is a candidate.

www.jakelawrence.xyz/research/case-study-library/arc/2427

Derived at build from the corpus snapshot of 2026-09-21; re-derives on every build. Base /research/case-study-library/arc.

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