Beyond The Limit (BTL)

My father has Alzheimer's. This submission is the tool I wished existed for him. Kith holds the person, when memory cannot. 55 million people are losing themselves to dementia right now. By 2030, 110 million+. Every product built for them solves logistics — pill reminders, GPS, alerts. None of them hold the person. Kith does. It's a 24/7 AI companion for patients, families, and care teams — designed around four Opus 4.7 capabilities that earlier LLMs could not have supported. A SHOEBOX BECOMES A LIFE STORY. Most families freeze at a blank onboarding form. They have photographs. Kith uses Opus 4.7's 2576px vision to read scanned family photos — including the handwritten captions on the back, signage in the background, and text in cards and letters — drafting a structured Personhood Map the family reviews. Names, dates, relationships, occasions. Every claim flagged with its source image. multiple photographs in, few seconds later, the family has a simple document of their loved one's life. A NURSE'S NOTEBOOK ACROSS EVERY SESSION. Kith keeps five living markdown files in file-system memory — today.md, recurring_themes.md, joy_log.md, concerns.md, gentle_boundaries.md. Read at the start of every session. Updated after every turn. Restructured nightly by a reflection agent. The patient forgets yesterday. Kith does not. This is what Opus 4.7's improved file-memory was built for. A SAFETY ARCHITECTURE, NOT A SAFETY DISCLAIMER. Every patient response runs a silent self-verification pass: list every specific claim, identify its source, rewrite if unsourced. Dissonant-data resistance handles the hardest moments — when the patient confidently asserts a fabrication, Kith holds ground without harshly contradicting. Adaptive thinking responds in 1 second on "who is this?" and pauses for 4 seconds on "where is George?" when George has passed. In this domain, a hallucinated memory is not a product bug — it is a harm to a person who cannot correct it. A WEEKLY LETTER, NOT A DASHBOARD. Five parallel Claude subagents — Mood, Memory, Changes, Routines, Joy — read each week's conversation log through their specialized lenses. A sixth synthesizes them into ~400 words written like a thoughtful nurse, not a notification. The kind of letter a family keeps. Every Opus 4.7 capability we used is load-bearing. Every safety rule is architectural, not aspirational. This is what AI companion care actually looks like when you build it for someone you love.