Overview
The Coherence Overlay evaluates integration quality across all registered regime components. The Coherence Tensor Engine computes an N×N tensor of pairwise coherence coefficients and collapses it to a scalar Coherence Index (CI). When CI >= 0.55, the synthesis gate opens and the Triadic Regime Synthesizer is permitted to publish. Below 0.55, synthesis is withheld and fragmentation zones are mapped for diagnostic review.
RTT Engines
| Engine | Role | Function | Version |
|---|---|---|---|
| COHERENCE_TENSOR_ENGINE | Primary | Computes multi-axis CI tensor; gates synthesis at CI >= 0.55 | RTT/3 |
| CROSS_DOMAIN_CAUSALITY_WEAVER | Secondary | Traces coherence loss across domain boundaries | RTT/3 |
| TRIADIC_REGIME_SYNTHESIZER | Gatekeeper | Withheld until CI >= 0.55 confirmed | RTT/3 |
| PARADOX_GRADIENT_ANALYZER | Tertiary | Resolves contradictory coherence readings | RTT/2 |
Inputs & Outputs
Imports
- Structural Frame (from Structural Overlay)
- Drift Report — ΔM/ΔD/ΔV (from Drift Overlay)
Exports
- Coherence Report
- Coherence Index (CI)
- Synthesis gate decision (CI >= 0.55 → PASS/HOLD)
- Fragmentation zone map
- Cross-domain coherence loss trace → Substrate Overlay
Metrics Produced
| Metric | Description | Range / Format | Consumed By |
|---|---|---|---|
| CI | Coherence Index | 0.0–1.0 (gate at 0.55) | Triadic Regime Synthesizer |
| Fragmentation zones | Regime pairs below coherence floor | Integer | Domain Overlay |
| Cross-domain loss | Coherence drop across boundaries | Float | Substrate Overlay |