What a job needs, named — not the machine that runs it. Fleet matches needs to resources by capability. Routing →
An atomic, leased claim on a resource, so two jobs never grab the same capacity. Reservations →
A time limit on a reservation, so a crashed job cannot hold capacity forever. Reservations →
The unit that does the real work behind a capability — pluggable and replaceable. Workers →
Measured readings of what actually happened, kept distinct from estimates. Telemetry →
One authoritative record of state every part reads from and writes to. State →
The property that running a task twice is safe — retries cannot double up. Idempotency →
How strongly a claim is known: measured, observed, inferred or assumed. Evidence →
The checklist a project must pass to advance a lifecycle phase. Gates →
One signal that halts all automated action instantly. Kill switch →
Something that may never change without human sign-off. Protected assets →
What happens when review cannot run: capped at needs-review, never a silent pass. Degraded mode →