✅ 2. RTT_STRUCTURAL_DETECTION_v1.json.md

# RTT_STRUCTURAL_DETECTION_v1.json — Explanation
 
Defines the machine‑readable contract for the STRUCTURAL_DETECTION_OPERATOR.
 
## Key Points
- Detects motifs, boundaries, invariants, anomalies.
- No interpretation or meaning.
- Works on any structural substrate.
- High noise tolerance.
 
## Output Packet
A STRUCTURAL_DETECTION_PACKET containing:
- motifs_detected  
- operator_signatures  
- invariants  
- anomalies  
- regime_hints  
- confidence