Alert rules

Each rule is a pure function that takes today's check-in, the recent history, and the thresholds from the rules section of the config, and returns an alert or nothing. Every alert carries a severity and the reasons behind it, quoting what the person said.

Code	Severity	Triggers when
EMERGENCY_WORDS	critical	Any reply contains phrases such as "help me", "can't breathe", "chest pain", "can't get up", or "on the floor". The agent also tells the person to call their local emergency number.
NO_ANSWER	high, critical on a streak	Nobody answers after checkin.call_attempts tries. Critical when the previous check-in was also unanswered.
CHECKIN_INCOMPLETE	medium	The call ends, or the person goes silent, before all questions are answered.
FALL_REPORTED	high	The person says yes to the fall question, or mentions falling, tripping, or slipping in any reply.
MISSED_MEDS	high	The person says they have not taken their morning medication.
MEDS_UNCONFIRMED	medium	The medication answer stays unclear after re-prompting.
PAIN_REPORTED	medium, high at rules.pain_high_threshold (7)	The person reports pain. The alert includes the level and location when given.
POSSIBLE_CONFUSION	medium, high with 2+ signs	Any of: wrong or unknown day of the week, disoriented phrases ("where am I"), the same reply of rules.repetition_min_words (4) or more words repeated, or rules.unclear_answers_threshold (2) or more unclear answers.
MOOD_DROP	medium	Mood is at least rules.mood_drop_threshold (1.5) points below the average of the last rules.baseline_window (14) check-ins, once there are rules.baseline_min_checkins (3).
LOW_MOOD	low	Mood is rules.low_mood_threshold (2) or below and no drop alert fired.
NOT_EATEN	low	The person has not eaten yet.
POOR_SLEEP	low	The person did not sleep well.

These rules are simple heuristics, not clinical assessments. Tune the thresholds for the person and review the alerts with them and their caregivers.