Reliability data model

What gets persisted and how it feeds scoring.

engine_reliability

Persist reliability per engine ID. Do not persist vendor names.

Suggested fields:

• engine_id (X1|X2|X3)

• total executions

• successful executions

• failed executions

• success rate

• average execution time

• average response time

• consecutive failures

• uptime percentage

• is_healthy

How it is used

• Scoring boosts routes from healthy engines.

• Health gating blocks degraded engines.

• Failover uses it to pick alternates.