whetstone_DSL/sprint209_plan.md

Sprint 209 Plan: Cross-Language Hard-Spec Parity Gate

Context

Hard semantic specs show large readiness asymmetry across languages.

Goals

1. Add cross-language parity benchmark runner
2. Compute parity deltas by category and failure class
3. Gate promotion on maximum allowed parity skew

Steps

Step 2084: Hard-spec parity matrix runner (10 tests)

Run aligned spec sets across target language matrix and collect comparable metrics.

Step 2085: Parity skew analyzer (10 tests)

Compute readiness/failure skew by language and category.

Step 2086: Parity threshold policy gate (8 tests)

Block promotion if parity skew exceeds configured threshold.

Step 2087: Parity diagnostics export (8 tests)

Emit top skewed categories and dominant root-cause classes.

Step 2088: Sprint 209 Integration Summary (8 tests)

Add editor/src/Sprint209IntegrationSummary.h.

Architecture Gate

• Hard-spec promotion requires bounded cross-language readiness skew.