| Hand-written long-lived mocks | Contract examples / effect harness mocks |
COUNT(*) as stream revision | Stream head revision |
| Multi-writer shared SQLite over NFS as “HA” | Single-owner partitions; add partitions to scale |
Retry policy.Decided denials “to be resilient” | Fix policy or satisfy obligations |
Retry STALE_FENCE as OCC | Re-acquire lease; new fence |
| Live cloud E2E in every PR | Contract + local Camp + rehearsal |
| Broad full-repo test sweeps for discovery | Search first; narrow package tests |
| Wall-clock sleeps in pure domain tests | Virtual Clock |
| Assert process memory for audit | Replay events |
| Put LLM tokens in EventStore | Streamer |
Bare .hobo hosts in fixtures | .hobo.localhost / .hobo.test |
| Invent parallel progressive plane beside Harness | Use Harness + Trails |
| Pool free-tier headroom across tenants in tests that claim “prod realism” | Model per-tenant isolation |