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Technical appendix

Category system appendix

The public demo and 1.0 storefront now share one governed 13-category launch taxonomy. These screens show category-specific evidence and handoff needs; a connected partner catalog remains authoritative for category IDs, hierarchy, availability, counts, and media.

Launch set13 governed top-level categories
Buyer cuesCondition, evidence, price, and handoff clarity
Seller cuesCategory-specific fields and photos
Partner controlConnected catalog replaces preview IDs and counts
Gaming category previewGaming

Consoles, games, controllers, handhelds, accessories, test state, and included-parts evidence.

 Trading cards category previewTrading cards

Graded cards, sealed products, singles, sets, label details, surface photos, and seal evidence.

 Electronics and PC category previewElectronics & PC

Computers, components, audio, cameras, devices, serial handling, tests, ports, and accessories.

 Collectibles category previewCollectibles

Figures, memorabilia, limited editions, display pieces, provenance, completeness, and condition evidence.

 Sneakers and fashion category previewSneakers & fashion

Size, measurements, wear, materials, box or tag evidence, and pickup-or-shipment choices.

 Books and comics category previewBooks & comics

Books, comics, manga, guides, sets, edition details, volume count, spines, and page condition.

 Home and garden category previewHome & garden

Furniture, decor, appliances, lighting, garden, measurements, power checks, and pickup readiness.

 Automotive category previewAutomotive

Parts, accessories, detailing supplies, tools, fitment, part numbers, measurements, and kit contents.

 Sports and outdoors category previewSports & outdoors

Sporting goods, fitness equipment, outdoor gear, memorabilia, safety, size, and provenance details.

 Toys and hobbies category previewToys & hobbies

Toys, models, tabletop games, hobby equipment, creative kits, completeness, age, and condition.

 Art and antiques category previewArt & antiques

Original art, prints, vintage pieces, maker marks, restoration notes, dimensions, and provenance.

 Watches and jewelry category previewWatches & jewelry

Watches, jewelry, vintage accessories, measurements, materials, service records, and insured handoff.

 Tools and equipment category previewTools & equipment

Hand tools, power tools, shop equipment, model details, safety notes, tests, and freight or pickup fit.
Saved category searches Save a category search

Keep category, condition, evidence, price, fulfillment, and location choices together for another visit.

 Compare category listings Compare similar items

Review condition, evidence, price, seller, and handoff details across listings in a governed category.

 Checkout preview for a category item Checkout preview

Preview shipping, pickup, store-assisted handoff, totals, and protection before an eligible purchase.

 Category issue evidence preview Report preview

Preview category-aware issue intake, evidence requests, deadlines, and support routing.

Buyer Experience

  • Each category needs buyer-visible proof rules before price, offer, bid, or cart review actions.
  • Listings should show whether shipment, hub pickup, local pickup, freight, or appointment handoff fits the item.
  • Saved searches and alerts should carry category-specific filters instead of generic keyword-only matches.

Seller Experience

  • Listing forms should change fields by category so sellers do not miss serials, measurements, proof photos, fitment, or certificates.
  • Bulk import should flag missing attributes before publish review.
  • Categories with higher support risk should show return, packing, pickup, and evidence expectations early.

Owner Review

  • Approve which categories appear in public browsing, which require hub checks, and which need staff review before activation.
  • Track category readiness through catalog quality, trust rules, support evidence, and launch-wave controls.
  • Keep restricted goods out of buyer-facing discovery until policy, support, and seller guidance are ready.
Catalog quality Catalog quality

Attribute rules, duplicate checks, media proof, and listing repair.

 Condition guide Condition guide

Category-specific proof standards for buyer confidence.

 Prohibited items Prohibited items

Restricted goods, seller education, and hub rejection rules.

 Launch wave planner Launch waves

Category sequencing, seller cohorts, support staffing, and rollback rules.

Current demo state

All 13 launch categories use one shared preview taxonomy.

The appendix shows category-specific evidence and handoff needs while the interactive storefront uses the same names, order, descriptions, and neutral category photography.

Future platform state

The connected partner catalog remains authoritative.

Production category IDs, hierarchy, counts, media, attributes, eligibility, and launch state come from the partner catalog. Employee category tools govern changes without hardcoding a new storefront release.