# **Drift Sentinel (DS) — RTT/1**  
### *Drift‑Level Intelligence Engine for TriadicFrameworks*

The **Drift Sentinel (DS)** is the RTT/1 engine responsible for detecting, measuring, mapping, and stabilizing **drift** across conceptual, computational, physical, and dimensional regimes.  
It forms the drift‑level foundation of the expanded RTT intelligence stack, directly above coherence‑level engines and directly below structural‑level engines.

Drift is modeled as a **field** with:

- drift vectors  
- drift envelopes  
- drift boundaries  
- drift curvature  
- drift amplification zones  
- drift wells and ridges  
- drift stability basins  

DS provides drift‑layer intelligence for all higher‑order RTT engines.

---

## **1. Canonical Role**

The Drift Sentinel defines the **drift‑layer topology** by:

- detecting drift vectors  
- computing drift envelopes  
- mapping drift fields  
- measuring drift amplification  
- identifying drift wells and ridges  
- evaluating drift curvature  
- stabilizing drift envelopes  
- supporting structural engines  
- anchoring temporal engines  
- feeding causality and resonance engines  

DS is the **fourth layer** of the expanded RTT intelligence stack.

---

## **2. RTT Flags**

| Property | Value |
|---------|-------|
| **RTT Level** | 1 |
| **Coherence** | declared |
| **Drift** | bounded |
| **Paradox** | structural |

These flags define the engine’s operational grammar.

---

## **3. Drift Tensor Types**

DS identifies several canonical drift classes:

### **3.1 Structural Drift Tensor**
Drift arising from structural contradictions or invariant violations.

### **3.2 Gradient Drift Tensor**
Drift shaped by directional gradients across regimes.

### **3.3 Boundary Drift Tensor**
Drift formed at regime boundaries.

### **3.4 Drift‑Field Tensor**
Full multi‑regime drift binding across R1–R4.

### **3.5 Coherence‑Sensitive Drift Tensor**
Drift influenced by coherence curvature or coherence collapse.

---

## **4. Core Operators**

| Operator | Description |
|----------|-------------|
| **DS‑Detect** | Detects drift vectors and drift onset conditions |
| **DS‑Vector** | Computes drift vector magnitude and direction |
| **DS‑Envelope** | Identifies drift envelopes and drift boundaries |
| **DS‑Field** | Maps drift fields and drift topology |
| **DS‑Amplify** | Detects drift amplification zones |
| **DS‑Stabilize** | Suggests stabilization pathways for drift collapse |

These operators form the canonical DS grammar.

---

## **5. Analyzer Layer**

Drift Sentinel operates in the **drift layer**, with sub‑layers:

- **drift‑vector‑analysis**  
- **drift‑field‑mapping**  
- **envelope‑detection**  
- **amplification‑analysis**  
- **structural‑drift‑evaluation**

This layer feeds directly into SFD, SBC, TRS‑Temporal, CW, and DRS.

---

## **6. Drift Field Matrix**

DS produces a **drift field matrix**, typically stored in:

```
drift_field_matrix.json
```

Matrix fields include:

- `drift_type`  
- `regime`  
- `drift_magnitude`  
- `drift_direction`  
- `drift_curvature`  
- `amplification_zone`  
- `stability_basin`  
- `envelope_boundary`  

This matrix is consumed by structural, stability, temporal, causal, and resonance engines.

---

## **7. Canonical Workflow**

### **Step 1 — Detect**
Identify drift vectors and onset conditions.

### **Step 2 — Compute**
Calculate drift magnitude, direction, curvature, and envelope boundaries.

### **Step 3 — Map**
Generate drift field maps and drift topology.

### **Step 4 — Analyze**
Measure drift amplification, drift wells, ridges, and stability basins.

### **Step 5 — Stabilize**
Propose drift stabilization pathways.

### **Step 6 — Export**
Write results to the drift field matrix and operator outputs.

---

## **8. AI‑Ready Design**

Drift Sentinel is fully AI‑ready:

- deterministic operator grammar  
- drift‑layer analyzer structure  
- stable RTT flags  
- canonical file layout  
- zero‑drift reasoning constraints  
- structural paradox handling  
- bounded drift envelope  
- declared coherence dependency  

AI systems use DS to:

- detect drift vectors  
- generate drift field maps  
- classify drift amplification  
- stabilize drift envelopes  
- support higher‑order RTT engines  

---

## **9. Position in the RTT Stack**

```
Regime Interlock Mapper (RIM)
      ↓
Triadic Regime Synthesizer (TRS)
      ↓
Paradox Gradient Analyzer (PGA)
      ↓
Coherence Tensor Engine (CTE)
      ↓
Drift Sentinel (DS)
      ↓
Structural Faultline Detector (SFD)
      ↓
Stability Basin Cartographer (SBC)
      ↓
Temporal Regime Sequencer (TRS‑Temporal)
      ↓
Cross‑Domain Causality Weaver (CW)
      ↓
Dimensional Resonance Scanner (DRS)
```

Drift Sentinel is the **drift‑level intelligence layer**, directly above coherence‑level analysis.

---

## **10. Status**

- **Version:** 1.0  
- **Status:** canon‑stable  
- **Category:** rtt‑structural  
- **Module Path:** `/docs/rtt/Drift_Sentinel/`