ModelForge/docs/architecture/SLO_POLICIES.md

SLO policies

SLO policies are immutable revisions. Changing objective, threshold, window, population minimum, severity or environment deactivates the prior revision and creates a new fingerprinted revision. Historic evaluations keep the exact prior policy ID.

Initial active policies

Key	Environment	Objective/threshold	Window	Minimum	Rationale
platform.api.production	PRODUCTION	99%	24h	20	local control-plane availability
gateway.production	PRODUCTION	99%	24h	20	valid capability routing
rag.embedding.production.success	PRODUCTION	99%	24h	20	established stable capability
rag.embedding.production.latency	PRODUCTION	p95 ≤ 1000 ms	24h	20	measured warm/shared-GPU envelope, not a quality gate
gpu_node.production.freshness	PRODUCTION	99%, max age 90 s	1h	1	existing 30/90 receive-time contract
scheduler.production.correctness	PRODUCTION	99.5%	24h	20	typed refusal is valid; internal failure is not
migration.production.reliability	PRODUCTION	99%	7d	1	failure/manual intervention consumes budget
vision.embedding.lab	LAB	95%	24h	5	operational LAB signal only
speech.transcription.lab	LAB	95%	24h	5	operational LAB signal only

Thresholds use the established node liveness contract and M5–M13 measured behavior. They are not selected after a failure merely to make the platform green. LAB policy evaluation conveys operating evidence without production readiness or an availability budget. BACKGROUND is supported by the contract for migration/benchmark work but has no initial production objective.