# ENGINEERING_SPEC — ECR-007 Wyckoff Live Structure

**ECR:** ECR-007  
**BD:** BD-2026-007  
**Status:** Approved  

## Intent

Operators observe FORMING Wyckoff structure without feeding Live into execution.

## Modules

| Module | Role |
|--------|------|
| `events.py` / `range.py` | Confirmed facts |
| `live.py` | Live candidates + confidence + lifecycle hint |
| `engine.py` | Assemble cycles[].confirmed / .live |
| `execution_signal_from_wyckoff` | Confirmed-only gate |

## Lifecycle

`UNKNOWN → FORMING → CONFIRMED → COMPLETED`

## Non-goals

strategies, maker, Live-as-signal, Confirmed threshold cuts.