Check the Garmin connection and return the logged-in account profile (display name, full name).

Daily wellness metrics for a date. Pick one or more via metrics: summary, sleep, stress, heart_rate, hrv, spo2, respiration, hydration, steps, floors, intensity_minutes, body_battery, body_battery_events, stats_and_body.

Training metrics for a date. Pick via metrics: readiness, morning_readiness, status, vo2max, fitness_age.

Fitness/performance metrics. Pick via metrics: race_predictions, cycling_ftp, lactate_threshold, personal_records (all latest, date-agnostic), and endurance_score, hill_score, resting_heart_rate, weekly_intensity_minutes (over the given date range).

Body weight & body composition (weight, BMI, body-fat %) over a date range. Set include_raw for the individual weigh-in entries too. Default range: the last ~4 weeks.

Step totals over a date range. granularity 'daily' (Garmin caps the span at 28 days) or 'weekly'. Default: daily, last ~4 weeks.

Data for a single activity by activityId. Pick via include: summary, splits, weather, details (GPS/HR/power streams), hr_zones, exercise_sets.

List activities. Without dates: the most recent ones (use limit=1 for the last activity). With startDate/endDate and/or type: activities in that range, optionally filtered by type (e.g. running, cycling, swimming).

Garmin devices paired to the account (model, firmware, last sync).

User profile & settings: units, preferences, activity level, etc.

Goals filtered by status (active, future, or past).

Saved workouts on the account.

Scheduled workouts / calendar for a month (defaults to the current month).