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QEDHealth Systems
Health Core

The Longitudinal Health Profile

The LHP is the canonical, user-owned context layer that turns raw events into a coherent model of the whole person. It is not a static profile — it is a living model that stays accurate as you change.

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A living model

What the profile holds

Every entry is interpreted in relation to everything before it. The profile preserves meaning over time, not just data points.

What happened, and when it happened
Where the information came from
How confident the system is
What changed over time
What remains unresolved
What the user cares about
What agents have inferred
What actions or follow-ups are pending
Goals, preferences, and experiments
Core surfaces

Four surfaces, one core loop

Different views into the same profile. Each serves a distinct job — and all strengthen the same underlying model.

Input surface

Capture

A chat-first, voice-capable, quick-log interface — a translation layer from messy human experience into structured longitudinal context. Not just chat: a way to record events, symptoms, behaviours, goals, and reflections.

Profile surface

Understand

A human-readable view of your current health model: timeline, goals, changes, patterns, uncertainty, and agent interpretations. It helps you see what the system believes — and why.

Agent surface

Reason

A modular interface where specialist agents explain, suggest, plan, follow up, and coordinate around your profile. It feels unified, but stays inspectable.

Developer surface

Inspect

A technical view into schema behaviour, ingestion quality, provenance, confidence, and agent outputs — so the system never becomes a black box.

Chat is only one interface

The conversation is a doorway. The profile is the house.

A chatbot answers in the moment and forgets. Health Core maintains a coherent model of your health trajectory, so every interaction builds on the last.

You can talk, log, or import — but the value isn't the message. It's the durable, inspectable model underneath that agents and clinicians can rely on over time.

Agent autonomy ladder

Autonomy earned through checkpoints

The system never jumps to higher autonomy without the safety, consent, auditability, and confidence to justify it.

  1. Explain

    Summarise, clarify, and explain what your profile contains.

  2. Interpret

    Identify patterns, inconsistencies, missing information, and possible relationships.

  3. Suggest

    Recommend next steps, experiments, questions, or behavioural changes.

  4. Plan

    Create structured plans across sleep, training, nutrition, recovery, and medical preparation.

  5. Follow up

    Remember unresolved issues, check whether plans were followed, and adapt to new data.

  6. Coordinate

    Work across domains and hand context to other agents while preserving coherence.

  7. Act with consent

    Trigger reminders, update records, or prepare exports — only within approved permissions.

  8. Support care continuity

    Bridge daily life, personal optimisation, and provider-facing workflows.
Engineering philosophy

Built on stable primitives

Health Core is longitudinal infrastructure, not a bag of features. Every capability maps back to a small set of durable primitives.

usereventobservationsourcetimestampprovenanceconfidencehealth stategoalpreferenceinterventionexperimentagentpermissionfollow-upexport

Longitudinal by default, provenance-first, timeline-aware, uncertainty-aware, user-correctable, and open-core compatible. See the developer model →

Start building your longitudinal profile.

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