# Sprint 188 Plan: Replay and Rollback Enforcement I

## Context
Replay/rollback metadata is emitted but not fully enforced.

## Goals
1. Enforce replay contract presence at queue time
2. Enforce rollback contract presence at validation time
3. Emit explicit deterministic blockers

## Steps

### Step 1979: Queue replay-contract enforcement (10 tests)
Block tasks missing required replay fields in strict mode.

### Step 1980: Validation rollback-contract enforcement (10 tests)
Fail validation when rollback contract fields are missing.

### Step 1981: Deterministic blocker taxonomy extension (8 tests)
Add `missing_replay_contract` and `missing_rollback_contract` classes.

### Step 1982: Contract enforcement telemetry (8 tests)
Emit aggregate counts and per-task diagnostics.

### Step 1983: Sprint 188 Integration Summary (8 tests)
Add `editor/src/Sprint188IntegrationSummary.h`.

## Architecture Gate
- Strict mode cannot report ready when replay/rollback contracts are absent.