Scope: Laundry Baskets — portable containers for collecting/carrying clean or dirty clothes between wash loads: single baskets/hampers, lidded hampers, multi-compartment sorters, rolling laundry carts, collapsible pop-up hampers. Excludes mesh delicate-wash bags/frames (sibling: laundry-wash-bag-frames), general multi-purpose bins/caddies (sibling: storage-containers), and drying racks/valets (sibling: rack-valets).

Seed:
1) Plastic resin code / exact shell material — rarely stated on listings, needs a label or spec-page read, decides recyclability and UV/damp aging: the laundry-baskets equivalent of harvest_date.
2) A watchmaker-type persona would notice the engineered tolerance of the vent/weave gaps and whether a "seat-top" lid is actually load-bearing, not the color or price most buyers shop on.

Sources:
[wikipedia_laundry_basket] https://en.wikipedia.org/wiki/Laundry_basket — materials/ventilation/handles/seat-top/base shape — fetched excerpt: "Clothes baskets can be made of various materials such as wood, plastic, metal, rope, ratten, braided willow or textile... designed so that air can circulate... carrying handles or edges on two of the short sides... Some clothes baskets have a seat on top, which makes them multifunctional furniture."
[wikipedia_resin_identification_code] https://en.wikipedia.org/wiki/Resin_identification_code — resin codes 1-7, ASTM D7611 — fetched excerpt: infobox fields "version: ASTM D7611/D7611M-26", "organization: Society of the Plastics Industry (1988-2008), ASTM International (2008-present)".
[wikipedia_wicker] https://en.wikipedia.org/wiki/Wicker — wicker material — fetched excerpt: "Wicker is traditionally made of plant-based material, such as willow, rattan, reed, and bamboo... light yet sturdy."

Branches:
- form_factor=divided_sorter -> compartment_count: wikipedia_laundry_basket confirms "different boxes can be used for sorting the laundry" as a real practice, but names no two/three/four-or-more convention; that granularity is unsourced general product-category knowledge, kept because compartment count is a real, commonly listed sorter spec.
- form_factor=rolling_cart -> mobility: general product-category knowledge; no wiki line names carts directly, flagged low-confidence via judgement-adjacent reasoning, kept because casters are a real, commonly listed spec.
- form_factor=collapsible_pop_up -> fold_flat_for_storage: general product-category knowledge, same caveat as above.
- form_factor=single_basket_or_hamper -> seat_or_lid_load_bearing: supported directly by wikipedia_laundry_basket's "seat on top... multifunctional furniture" line.

Noise (spec-sheet rows left out):
- Price, brand, color/finish, star rating — excluded per rule (never facets).
- Exact L x W x H dimensions — folded into capacity_liters rather than kept as a separate three-number facet.
- A hard numeric weight-capacity or liter-range cutoff — no two-sourced number was found (WebSearch budget was exhausted this session; Brabantia/IKEA/Container Store/Target/mDesign/Seville Classics pages and Good Housekeeping/Real Simple/Spruce buying guides were all fetch-blocked by bot walls, soft-404s, or 402s, and Wayback Machine's availability API returned 429 throughout), so capacity stays unit-only with no range field, and no liter thresholds appear anywhere in the JSON.
- Odor-control/antimicrobial shell treatment — a hamper spec seen in gym-bag marketing, distinct from moisture_handling's wipe/porous framing; not added as a facet since no brand or spec-sheet page was fetchable this session to confirm prevalence.

Corrections (2026-10-26):
- plastic_resin_code.source changed listing -> researched: its own listing_field_hint ("almost never a separate listing field") and backfill_cost:high already said this; source was internally contradictory.
- Removed moisture_handling from material=wire_or_metal_mesh's makes_irrelevant: it contradicted moisture_handling.why_experts_care, which treats "a wipeable... coated-wire shell" as a live case.
- compartment_count branch line rewritten: wikipedia_laundry_basket does say "different boxes can be used for sorting" (a sentence the original note misquoted as being about "boxes and crates"), but names no two/three/four-or-more convention, so that granularity is now marked explicitly as unsourced rather than misattributed.
- Dropped wikipedia_wicker from moisture_handling's evidence: refetched wicker.html, zero matches for moist/mold/mildew/odor/stain/damp/absorb; the page does not support the claim. wikipedia_laundry_basket (general air-circulation/moisture-escape line) stays as the sole citation.
- Added vocabulary entries for PET, LDPE, PS and ASTM/ASTM D7611 (plastic_resin_code values/definition had no entries); added one for tow_handle (handle_style value had none).
- Rejected "consider a cart-specific facet (shelf/tier count or rated weight capacity)": tried curl on Whitmor and Container Store sorter/cart pages, got 404 and a redirect loop respectively, no spec text obtainable; a new facet needs two sources per the house rule, and this session could not clear that bar, same block pattern the original run documented.
- Added one Noise line for odor-control/antimicrobial treatment (unverified, no source fetchable) rather than adding a facet, since it only needed documenting as an excluded row.