---
id: 39
title: Execution Hardening
group: Infrastructure Features
---

**Purpose:** Three additive quality improvements to the execution pipeline that catch cross-plan failures before they cascade.

**Components:**

**1. Pre-Wave Dependency Check** (execute-phase)
Before spawning wave N+1, verify key-links from prior wave artifacts exist and are wired correctly. Catches cross-plan dependency gaps before they cascade into downstream failures.

**2. Cross-Plan Data Contracts — Dimension 9** (plan-checker)
New analysis dimension that checks plans sharing data pipelines have compatible transformations. Flags when one plan strips data that another plan needs in its original form.

**3. Export-Level Spot Check** (verify-phase)
After Level 3 wiring verification passes, spot-check individual exports for actual usage. Catches dead stores that exist in wired files but are never called.

**Requirements:**
- REQ-HARD-01: Pre-wave check MUST verify key-links from all prior wave artifacts before spawning next wave
- REQ-HARD-02: Cross-plan contract check MUST detect incompatible data transformations between plans
- REQ-HARD-03: Export spot-check MUST identify dead stores in wired files