LifeLine: Open-Source Medical Agent Uses Long-Term Memory to Track What Changed Between Visits
Sad_Teaching9764 · reddit · 2026-09-28
Developer Avinash Reddy released LifeLine, an open-source longitudinal medical-history agent built to answer questions document retrieval can't: "What changed since the last visit?"
- Architecture: records → Hindsight retain → long-term memory → Hindsight recall → relevant historical context → LLM synthesis, with record-level evidence attached. Handles questions like "what happened after the medication change" and "have we seen anything similar before."
- Conflicting records are first-class: if one record documents an allergy and another prescribes the same drug, the system surfaces the conflict and involved records instead of silently picking one.
- Design rationale: memory via Hindsight is meant to change the agent's behavior across interactions, not just extend the prompt.
Open source at github.com/AvinashReddy016/LifeLine; the author is soliciting feedback on long-term memory approaches.
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