# Success Criteria Master Index

> How we know LLMHosts works. Every criterion is testable. No hand-waving.

Success criteria are organized in four layers, from broadest to most specific:

| Layer | Scope | File |
|-------|-------|------|
| [Product](product-level.md) | Business metrics (users, MRR, NPS) | `docs/business/prd.md` §1 |
| [Feature](feature-level.md) | Per-feature acceptance criteria (F-001 → F-020+) | `docs/business/prd.md` §5 |
| [Phase](phase-level.md) | Phase-level gates (Phase 1-5) | `docs/roadmap/phase5-acceptance.md` |
| [Relay](relay-level.md) | ADR-009 relay-specific criteria | `docs/architecture/adr-009-relay-tunnel.md` |
| [Performance](performance-targets.md) | Latency, throughput, size targets | Multiple sources |
