Recovery from depression or anxiety doesn't end when therapy does — the weeks between sessions are where people relapse. A patient companion that checks in, nudges, and listens can help carry the effort forward, and a conversational agent fits that role naturally.
The agent
I built an accessible, responsive web platform around acceptance and commitment therapy — specifically behavioral activation. Two pillars: set personal goals, and plan the day. Users talk to an agent named Lucky, whose suggestions stay in sync with what they do in the app and the data behind it.
Validation
Beyond automated tests, ten volunteers ran four set tasks and filled in a questionnaire. Lucky scored 81 on the System Usability Scale — already strong — and participants were open to using it daily. My Master’s thesis at HES-SO Lausanne, graded 6/6.