Editing Marketplace Research Quality Manual (section)

== Lessons generalized from orange kids task ==
Case study: the 2026-08-07 orange kids products task requested products in an orange color range for children aged 3-5. Those parameters are examples of user criteria, not the scope of this manual.

Observed results:
* 139 rows were checked.
* 77 rows were excluded as critical.
* The cleaned table retained 62 rows while preserving 12/12 category coverage.
* Nodus and Isaac each had 36/36 critical rows, mainly because search pages were submitted as product cards.
* Rin had 12/37 critical rows and many warnings for missing age/price evidence.
* Arkhivolt had 8/35 critical rows.
* Murr had 0/12 critical rows, but many warnings for missing required fields.

Generalized lessons:
* A search URL is never a product position, regardless of how relevant the query is.
* User criteria must be checked as data fields. In that task the criteria were age and orange color; in another task they may be size, material, brand, country, delivery, certification, price ceiling, or seller constraints.
* Missing price/availability/criterion evidence must produce candidate_unverified or needs_review, not a silently confirmed final row.
* Coordinators must run an automatic URL/title/status gate before merging agent contributions.
* It is better to return fewer confirmed products plus a separate candidate list than to inflate the final table with unverifiable placeholders.