Health — Personal Health Knowledge Graph

The Health skill turns your wearables into a queryable, local-first knowledge graph with validated longevity-proxy synthesis on top. It is a substrate, not a coach. The agent reads from it; the user reads the projections; humans interpret. v1 ships the Garmin adapter and the hex architecture that lets Apple Health, Whoop, Oura, and CGM drop in as single-file adapters with zero application-core changes.

This is the substrate-shaped answer to the questions "how did I sleep last night?", "am I overreached?", "what's my VO2max arc this year?" — answered against a trace store you own, not a vendor cloud.

Setup (first run — installs all dependencies)

This skill is a Python package with a health CLI. npx skills add copies this manifest but does NOT install the CLI — so, before the first health command, ensure it's installed. This is the single step that pulls all dependencies:

command -v health >/dev/null 2>&1 || bash "<this skill's dir>/install.sh"