# Sprint 212 Plan: False-Green Equivalence Guard

## Goal
Eliminate matrix-level false-green candidates by requiring equivalence-safe evidence between A/B and production outcomes.

## Steps
- Step 2099: Add A/B vs production equivalence comparator for compile/test outcome classes.
- Step 2100: Block production green when comparator detects unresolved contradiction.
- Step 2101: Emit `false_green_equivalence_mismatch` diagnostics packet.
- Step 2102: Add benchmark summary contradiction counters by language/category.
- Step 2103: Add `Sprint212IntegrationSummary.h`.