Categories¶
Open Consumables works one measurement programme at a time. The pilot is electric toothbrush heads. The public reference layer (the device knowledge graph: per-device pages with provenance-tagged compatibility) extends to other categories ahead of measurement, so an agent searching "replacement for my Xiaomi 3H" lands somewhere useful.
Active¶
| Category | Working name | Stage |
|---|---|---|
| Electric toothbrush heads | OpenBrush | Phase 2: physical measurement |
| Air purifier filters | OpenAir | Reference layer only (no measurement programme) |
| Electric scooter consumables | OpenScoot | Reference layer only (no measurement programme) |
| Electric shaver heads | OpenShave | Reference layer only (no measurement programme) |
Deferred¶
The categories below are scaffolded as placeholders. None have reference-layer or measurement coverage yet. Each measurement programme activates only after the pilot has produced a published measured baseline AND the category has been explicitly chosen as the next step.
| Category | Working name | Why it's a candidate |
|---|---|---|
| Water purifier cartridges | OpenWater | Multi-stage scope (PP / carbon / RO); each stage may need its own profile |
| Robot vacuum consumables | OpenVac | Heterogeneous mix (4-5 classes per device); widest scope |
| Humidifier filters / wicks | OpenMist | Lowest priority; aftermarket may be too thin |
Why this list and not a longer one¶
Each category passes three gates:
- Category-fit, spec is complete, buyer has opted out of choice, rebuyability beats novelty.
- Existing-layer check, no mature industry or community reference layer already documents the geometry. (This rules out bicycles, motorcycles, mechanical keyboards, 3D printer nozzles, RC connectors.)
- Ecosystem-selection prerequisite, for the convergence-led wedge, a discoverable buyer-side compatibility anchor must already exist. (This rules out Oral-B, Sonicare, most Western IoT brands for the convergence path.)
Categories that don't pass all three are out of scope, even when they superficially look like good candidates.
See the concept for the underlying framing.