strava-injury-risk-triage

Goal

Estimate short-term injury/fatigue risk based on week-over-week changes and activity mix.

Procedure

1. Call weekly_stats(weeks=4, week_start=monday, tz_name=Asia/Tokyo) to get last 4 weeks.
2. Compute heuristics (no medical claims):
   • Load ramp: this_week_distance / avg_last_3_weeks_distance
   • Long-session flag: any week with moving_time > 6h
   • Climb spike: this_week_elev / avg_last_3_weeks_elev
   • Sport imbalance: if one sport_type > 80% of volume
3. Classify risk: low|medium|high with reasons.
4. Provide 2-3 safe suggestions (sleep, easy Z2, rest day, mobility). Avoid diagnosis.

Output format (JSON)

• risk_level: low|medium|high
• signals: {ramp_ratio, climb_ratio, imbalance, long_session_flag}
• reasons: [strings]
• suggestions: [strings]