Scope: Pet Grooming (supplies > pets > pet_grooming) = home/pro-light grooming tools and liquids for dogs and cats — coat brushes/combs, de-shedding tools, nail clippers/grinders, electric hair clippers/trimmers, and shampoo/conditioner. Excludes beds/apparel/carriers/furniture (sibling pet leaves) and flea-tick/ear-infection treatments (pet-medical-supplies).

Seed:
1. Equivalent of harvest_date: shampoo_ph_level — an expert-relevant number almost never printed on the retail listing, usually only inferable via a "pH-balanced" claim or the brand's own page.
2. Allergist persona would first check formulation_type for hidden fragrance/dye in "hypoallergenic" shampoo claims, and would read dilution/medicated-use frequency as a dose question rather than trusting the front-label claim — reflected in formulation_type and the dilution judgement rather than a trusted "hypoallergenic" label alone.

Sources:
[wiki_dog_grooming] https://en.wikipedia.org/wiki/Dog_grooming — tool types, nail clipper mechanisms, de-shedding/hand-stripping — fetched excerpt
[petmagasin_nail_guide] https://www.petmagasin.com/blogs/news/best-pet-nail-clippers — nail mechanisms, safety guard, quick-trim margins (cites VCA/WSU) — fetched excerpt
[honesthound_nail_guide] https://www.honest-hound.com/best-dog-nail-clippers — quick-stop guard terminology — fetched excerpt
[vca_shampoo_ph] https://vcahospitals.com/resources/lifestyle-dog/supplies/true-or-false-it-s-okay-to-use-human-shampoo-on-pets — pet skin pH 6.2-7.5 vs human 5.2-6.2 — fetched excerpt
[vermontruff_ph] https://vermontruff.com/blogs/news/dog-skin-ph-vs-human-ph-importance-in-pet-care — pet skin pH ~6.0-7.5, acid mantle — fetched excerpt
[abk_blade_chart] https://www.abkgrooming.com/blogs/product-knowledge/dog-clipper-blade-size-chart-coat-types-cut-lengths — A5 blade number-to-mm chart — fetched excerpt
[oneisall_blade_chart] https://oneisall.com/blogs/all/dog-clipper-blade-sizes-chart-ultimate-guide — cross-check blade number-to-mm chart — fetched excerpt
[andis_blade_range] https://christiesdirect.com/andis-ultraedge-blade-range.html — real retail range of Andis A5 blade numbers — fetched excerpt
[dogfluffy_pawcontrol_rpm] https://www.dogfluffy.com/dremel-pawcontrol-dog-nail-grinder — grinder RPM spec, 8,000-25,000 — fetched excerpt
[milesandemma_rpm] https://milesandemma.com/how-to-dremel-dog-nails/ — ideal grinder RPM window 10,000-15,000 — fetched excerpt
[allgroom_dilution] https://allgroom.co.nz/blogs/shampoo/shampoo-dilution-guide — shampoo concentrate dilution ratios 4:1-50:1 — fetched excerpt

Branches:
grooming_tool_type -> coat_brush_or_comb routes to coat_tool_form/bristle_or_tooth_material/tooth_or_pin_spacing: "Brushes and combs may vary in material depending on coat type" (wiki_dog_grooming).
grooming_tool_type -> nail_clipper_or_grinder routes to nail_tool_mechanism/safety_quick_guard: "There are two main types of nail clippers: guillotine trimmers and standard scissor- and plier-style trimmers" (wiki_dog_grooming); grinder/clipper three-way split (petmagasin_nail_guide).
grooming_tool_type -> electric_clipper_or_trimmer routes to clipper_blade_cut_length: blade number determines cut length (abk_blade_chart, oneisall_blade_chart).
grooming_tool_type -> shampoo_or_conditioner routes to shampoo_ph_level/formulation_type: pet-specific pH need (vca_shampoo_ph).
coat_type -> double_coat routes to deshedding_edge_type: de-shedding blade tools comb undercoat (wiki_dog_grooming).
pet_species -> cat routes to noise_level: cats are more sound/vibration sensitive, raised by reviewer guidance on grinder noise tradeoffs (petmagasin_nail_guide).

Noise (spec-sheet rows seen but not made facets):
- Handle ergonomics / grip material (andis_blade_range, abk_blade_chart bullets) — generic comfort spec, fails the "would read unchanged for an unrelated category" test.
- Blade width in mm as its own number (abk_blade_chart) — folded into clipper_blade_cut_length's bucketed values instead of a separate facet.
- Dilution ratio as a sourced numeric range — only one page (allgroom_dilution) was directly fetched with numbers; a second direct fetch (petgroomerforums, essencera, ahppet, biogroom) failed or lacked the number, so this is a single-sourced judgement, not a facet with a range.
- Clipper wattage/amperage — appears on some brand pages but not corroborated by two fetched sources this run; left out rather than guessed.

Corrections (2026-10-26):
1. Removed clipper_blade_cut_length/blade_material from electric_clipper_or_trimmer's then_ask and shampoo_ph_level from shampoo_or_conditioner's then_ask — all three are novice_answerable:false with no cold_start_question; they stay as backfilled annotations instead of direct asks.
2. Added clipper_motor_type and blade_material to the makes_irrelevant lists of the four grooming_tool_type branches they don't apply to, so both facets are referenced by the split logic instead of orphaned.
3. Corrected grinder_motor_speed range min from 6500 to 8000 RPM to match the only cited source, dogfluffy_pawcontrol_rpm ("8,000 to 25,000 RPM"); updated its listing_field_hint example to match.
4. Added coat_type to makes_irrelevant on the nail_clipper_or_grinder and shampoo_or_conditioner branches of grooming_tool_type so a named nail or shampoo product no longer triggers a coat-type question.
5. Kept formulation_type's flea_and_tick value (it's a topical wash sold in this leaf, not the spot-on/collar/oral treatments pet-medical-supplies covers) and added a judgement naming the governing regulator, sourced to epa_flea_tick_regulation (new reference, EPA.gov).
6. Added a brushless value to clipper_motor_type, sourced to andis_blade_range, which names an "Andis AGC Super 2-Speed Brushless Clipper"; updated the facet's definition, why_experts_care, and listing_field_hint to match.
7. Added vocabulary entries for rotary_motor, magnetic_motor, brushless_motor (clipper_motor_type), dematting_comb, grooming_glove (coat_tool_form), and serrated_steel_blade, rotating_tooth_head, rubber_nub (deshedding_edge_type).
8. Re-fetched oneisall_blade_chart this run — it resolved to the real blade-size table (previously an icon/account page) and cross-checks #10/#7F/#9/#8/#5/#5F/#4/#4F; tightened its supports line to the exact values on the page.