Build Log · June 28, 2026
Known Lens Engine
Designed the substrate and built the furnace: one context object becomes six useful care surfaces.
- Known
- Product Design
- Prototype
- seed context objects
- 20
- retrieval lenses built
- 6
- TypeScript files
- 4
- design docs produced
- 3
seed context objects
retrieval lenses built
TypeScript files
design docs produced
Timeline
Start
Product dump — what Known is so far
Loaded all existing docs, research guide, ethics boundaries
Turn 1
Ideation reviewed — Known at Home reframe
Pre-placement home-care as first wedge. Person can still participate. Family knowledge scattered but reachable.
Turn 2
Design Brief v1 locked
Phase 0A (founding portrait) vs 0B (live validation) split. Validation scoreboard. Wedge strategy.
Turn 3
Research Guide v1 written
Five buckets. Every question maps to a final output. Source tagging system.
Correction
Art of the possible redirect
Research cannot gate progress. Build the furnace, feed it mock fire.
Turn 4
Substrate Design v1 written
Known Context Object schema. Six retrieval lenses. Capture modes. Consent model. Validation loop.
Build
Lens Engine v0 shipped
types.ts + data.ts + lenses.ts + page.tsx. All six lenses rendering at localhost:3000/known/prototype.
What shipped
Known Context Object — the atomic unit of personal context with source, confidence, privacy, tags, care moments, emotional tone, and guidance
Six lens functions: renderKnownCard, renderWhatHelpsCard, renderPortraitOutline, renderCirclePrompts, renderHandoffSheet, renderValidationView
20 seed context objects — emotionally realistic dementia home-care scenarios
Prototype page at /known/prototype — tabbed, printable, all six lenses live
Design Brief v1 — product thesis, phase plan, wedge strategy, validation scoreboard
Research Guide v1 — five-bucket conversation guide, source tagging, what not to ask
Substrate Design v1 — full Known Context Object schema and retrieval lens map
“The app should not be born until the paper artifact starts glowing. But the engine that would power that app? Build it now. Feed it mock fire. Watch what comes out.”