Assistiv
Assistiv addresses the UK's Missing Middle, millions of older adults living independently but at risk of sudden decline.
Core trick
Runs four parallel model checks per voice turn (reflection, hostility, crisis, safeguarding) and produces a personalized care plan.
Description
Assistiv addresses the UK's Missing Middle, millions of older adults living independently but at risk of sudden decline. Existing care technologies arrive too late, and feel like a threat to identity for people who value their independence.
We built an open door: a voice-first, unhurried conversation powered by Claude Opus 4.7, hardwired for unconditional positive regard. Using Motivational Interviewing principles, it helps people reflect on what matters to them. Instead of weeks of navigating fragmented services before anyone has heard them, Assistiv offers a respectful twenty-minute interaction in which the person stays in control, including the ability to say no, which the system treats as a valid and successful outcome.
Opus 4.7 powers four parallel tasks for every answer: warm reflection, hostility detection, crisis detection, and adult safeguarding. The system generates a personalised Staying Well Plan grounded in the person's own words, alongside an optional GP Summary for those without advocates. Single-file, privacy-first, no data retained beyond the session.
One conversation at a time, with care, Assistiv supports independence earlier. Before crisis. On the person's terms. So that those in the Missing Middle are not locked out, and not alone.
README excerpt
# Design Your Life A voice-first, unhurried AI conversation that helps older adults reflect on what matters to them, on their own terms. Powered by Claude Opus 4.7. Entry stage of the Assistiv platform for ageing-in-place in the UK. Built for the Anthropic Hackathon, April 2026. --- ## Try it **Live demo:** [silegrand.github.io/design-your-life](https://silegrand.github.io/design-your-life) You will be asked to paste your own Anthropic API key at the start. The key is held in browser memory only. Nothing is saved, logged, or transmitted anywhere except directly to the Anthropic API. Close the tab and everything is gone. The conversation takes about twenty minutes. It works best in Chrome (voice input uses the Web Speech API). ## What it is Design Your Life is a single-file HTML application. Approximately 3,350 lines. No backend, no database, no build step. Everything runs in the browser, with Anthropic's API called directly. The conversation follows a Motivational Interviewing structure: eighteen questions across four sections, with warm reflections after each answer, ending in a personalised **Staying Well Plan** and — if the person chooses — a **Summary for their GP**. Four parallel Claude Opus 4.7 calls run for every answered question: a warm reflection, plus three safety classifiers (hostility, crisis, safeguarding). This is the architecture that lets the platform listen well while holding firm clinical boundaries. For the reasoning behind every design decisio