# ECR-007

**Title:** Wyckoff Live Structure  
**Status:** Approved  
**Date:** 2026-08-07  
**Change Level:** L2  
**Human:** Approved (LOOP-RUN-005 Start Authorization)

## Change

Add **Live / Developing** structure layer beside **Confirmed** Wyckoff engine: lifecycle, FORMING candidates (Spring/SOS/LPS/UTAD), explainable confidence, Summary partition. Keep Confirmed thresholds unchanged; execution may only consume Confirmed.

## Motivation

LOOP-RUN-005 — domain-state complexity under Adapter v0.1 STABLE (Confirmed ≠ Live ≠ execution).

## Scope

### Allowed (IN)

- `chanlun/analysis/wyckoff/live.py` + engine assembly
- lifecycle / confirmed / live payload
- Event candidates + confidence
- API contract + Summary UI
- tests + docs notes (WYCKOFF-LIVE-STRUCTURE-001)

### Forbidden (OUT)

- execution signal automation / auto trading
- strategy / maker / decide_quotes / `strategies/**`
- lowering Confirmed thresholds
- Live candidate replacing Confirmed
- ESS / Loop / Adapter changes

## Risk

| Risk | Mitigation |
|------|------------|
| Live → execution | `execution_signal_from_wyckoff` source=confirmed only; live-only → None |
| Confirmed pollution | candidates never written to confirmed.events |
| Domain confusion in UI | Summary Confirmed vs Live partitions |

## Acceptance Criteria

- [ ] Approved BD-2026-007
- [ ] Confirmed logic not relaxed
- [ ] Live ≠ execution signal (tests)
- [ ] Lifecycle verifiable
- [ ] Artifact chain + Gate PASS

## Rollback

- Disable live assembly; remove live.py; revert Summary partition

## Linked

- Note: `docs/notes/WYCKOFF-LIVE-STRUCTURE-001.md` (FROZEN)
- BACKEND_DESIGN: `docs/BACKEND_DESIGN/BD-2026-007-wyckoff-live-structure.md`
- ENGINEERING_SPEC: `docs/ENGINEERING_SPEC/ECR-007-wyckoff-live-structure.md`
- Loop: LOOP-RUN-005