# Sprint 203 Plan: Semantic Completion Validation I

## Context
Compile/test pass is insufficient for semantic correctness.

## Goals
1. Add semantic completion validator API
2. Support invariant and intent consistency checks
3. Emit deterministic semantic pass/fail packets

## Steps

### Step 2054: Semantic validator core API (10 tests)
Implement API surface for semantic completion checks.

### Step 2055: Invariant and intent-diff checks (10 tests)
Add deterministic invariants and intent consistency checks.

### Step 2056: Semantic failure packet schema (8 tests)
Normalize semantic failure outputs for downstream loops.

### Step 2057: Semantic pass aggregation in summaries (8 tests)
Emit report-level semantic completion metrics.

### Step 2058: Sprint 203 Integration Summary (8 tests)
Add `editor/src/Sprint203IntegrationSummary.h`.

## Architecture Gate
- Semantic completion status must be first-class beside execution status.