Apple Health

Read the user's synced Apple HealthKit data with the health-cli binary. Every command below takes --provider healthkit.

This skill serves iOS devices only. If the user's paired device is not an iPhone, it has no data for them — check the platform field returned by device.list when you are unsure.

Data Source

Despite syned from apple healthkit, do not assume the data is originated from ios devices only. It could come from other sources/devices which share data with Apple Healthkit.

When to Use

When the user asks about their synced HealthKit data, sync status, or sources:

• All-day metrics/vitals: steps, distance, calories, heart rate, HRV, VO2max.
• Sleep sessions: stages, quality, efficiency, awakenings.
• Workouts: type, duration, calories, distance, HR.

Tooling

Binary: health-cli. --provider healthkit is required on every command below — it is not optional and has no default; omitting it is a usage error. Commands group by data shape under query:

• query metrics --provider healthkit — all-day metric rollups
• query samples --provider healthkit — raw, unbucketed data points (intraday HR/steps, GPS, sleep stages)
• query sessions --provider healthkit — discrete sessions: sleep, workout
• status --provider healthkit — data-sync status
• auth connect --provider healthkit, auth disconnect --provider healthkit
• delete — erase stored records (destructive; see below)

Multi-device (rare): when a window spans >1 device the envelope adds "multi_node": true — query metrics returns per-device node_groups; query samples/sessions add a node_id to each record (samples CSV gains a leading node_id column). Single-device output is unchanged; never sum or double-count across devices.

query metrics — all-day metric rollups

health-cli query metrics --provider healthkit \
  --start-date <YYYY-MM-DD> [--end-date <YYYY-MM-DD>] \
  [--interval hourly|daily|weekly] [--fields a,b,c] [--timeout-secs N]

daily-metrics is the only domain so there is no --category. One row per --interval bucket (default daily). --start-date required; --end-date defaults to today. Output is an envelope { "coverage": {...}, "records": [...] } (see Coverage below).

--list-fields reads the metric field names from the synced data → { ok, provider, category, observed_count, fields: [{ name, observed, count? }] }. observed: true (with a row count) means the name is present in this user's data — those are exactly the names --fields matches. observed: false means the build knows the field but nothing has synced yet. If the field set can't be read the response carries degraded: true and every observed is null.

query sessions — discrete sessions

health-cli query sessions --provider healthkit --category sleep|workout \
  --start-date <YYYY-MM-DD> [--end-date <YYYY-MM-DD>] [--fields a,b,c]

• sleep — one row per sleep session.
• workout — one row per workout/activity.

Sessions are never bucketed (no --interval). Discovery: --list-categories → { ok, provider, categories }; --list-fields (needs --category) → { ok, provider, category, fields } (e.g. workout has is_indoor).

Output: normalized snake_case records; the same concept uses the same field name (e.g. workout average_speed_mps, elevation_gain_meters, hr_average_bpm). Session records carry a provider-prefixed id (healthkit_…) + start_datetime/end_datetime/timezone; metric buckets carry date/hour/week_start + record_count.

Coverage: queries return an envelope { "coverage": {...}, "records": [...] }. coverage.complete is false when days in the window aren't synced from the device; coverage.warning then holds the exact backfill_data_source command to run. Surface that warning to the user / act on it — results are partial until the backfill completes.

query samples — raw, unbucketed data points

health-cli query samples --provider healthkit --start-date <YYYY-MM-DD> \
  [--end-date <YYYY-MM-DD>] [--start-time <HH:MM[:SS]>] [--end-time <HH:MM[:SS]>] \
  [--fields <type1,...>] [--limit <n>] [--format stdout|csv] [--output <path>]
health-cli query samples --provider healthkit --list-fields   # discover sample types

Individual samples — finer than the query metrics rollups (intraday HR/steps, GPS, sleep-stage timelines; query sessions gives stage totals only). --fields selects sample types (not output columns) — run --list-fields to see the types this user has synced. GPS is location (raw lat/lon — don't infer place names from it). For dense reads use --output <path>: it writes CSV into the agent filesystem for a later script step and prints only a summary, keeping thousands of rows out of context.

status — data-sync status

health-cli status --provider healthkit [--timeout-secs N] \
  [--start-date <YYYY-MM-DD>] [--end-date <YYYY-MM-DD>] [--check-missing-entries]

Returns { categories: [{ name, record_count, earliest_datetime, latest_datetime }] }. With --check-missing-entries (requires --start-date): a deep per-30-min-interval gap report (unsynced_dates, missing_intervals, …).

auth connect

health-cli auth connect --provider healthkit [--timeout-secs N]

Run this and follow the instruction to connect to apple healthkit data.

auth disconnect

health-cli auth disconnect --provider healthkit [--timeout-secs N]

Apple Health cannot be disconnected through this CLI or an in-chat widget. Tell the user to open Settings → Connectors → Apple Health and tap Disconnect.

delete — erase stored Apple Health (HealthKit) records

health-cli delete --provider healthkit --all                # every Apple Health record
health-cli delete --provider healthkit --device NODE_ID     # one paired device
health-cli delete --provider healthkit --start-date 2026-03-01 --end-date 2026-03-31

Use for any request to delete, remove, erase, wipe, or clear HealthKit data. Never improvise it by moving files, disconnecting the connector, or writing to the database — those neither remove records nor leave an audit trail. A delete never spans providers; to clear both, run it once per provider.

--all takes no other filter; --device/--start-date/--end-date are used instead of it. All record kinds go at once — no per-category or per-record-ID delete. Dates are YYYY-MM-DD in JARVIS_USER_TIMEZONE or epoch seconds; a record is in range when it starts before the end and ends after the start, so a session straddling a bound is included. --start-date alone deletes from that day onward, --end-date alone up to and including it.

Destructive and irreversible, behind a fresh one-time approval showing the normalized filters. Run it once per request — settle provider, device and dates in conversation first. Denial exits code 3 with nothing deleted; that is final, so report it rather than retrying other filters or the other provider.

Zero is a success, not a miss — nothing matched, so say so and stop rather than widening dates or re-running with --all. Report deleted.records, not total_rows, which also counts child value rows. Apple Health is device-synced, so records still on the device can return on a later sync.

Auth

Device-synced; no login. Data availability depends on the on-device Health permission + sync. Use status to see synced ranges and the backfill_data_source device action (surfaced in query coverage.warning) to pull a range.

Operating Rules

1. Pick the command by data shape: query metrics (all-day rollups), query samples (raw points — only when individual samples matter; prefer metrics for trends), or query sessions --category sleep|workout (discrete events).
2. Always pass --provider healthkit and --start-date; --end-date defaults to today. Use current-date context for relative asks ("today", "last week"); use sample time bounds for narrow intraday windows.
3. Coverage: if a query metrics/sessions returns coverage.complete: false, tell the user the data is partial and relay/act on coverage.warning (run the backfill_data_source action, then re-query).
4. query metrics defaults to --interval daily; sleep spans midnight (include both evening start and morning end dates).
5. On empty results, the range likely has no data; widen it, or check status / coverage and backfill.