diff --git a/DRIVER-BOARD.md b/DRIVER-BOARD.md
index 9b3cf84..3085bea 100644
--- a/DRIVER-BOARD.md
+++ b/DRIVER-BOARD.md
@@ -577,3 +577,18 @@ NOTE: Previous runs stored this file as base64, causing 2000-byte truncation. Re
 - **Assessment**: The explain object now has 100+ statistical fields across 2399 lines of aggregator code. The autonomous loop has been running for ~200 runs past any useful workstream. Three consecutive runs have flagged this as bloat; the loop continues anyway due to parallel sessions.
 - **HARD STOP**: This run does NOT add any new metric, ratio, or statistical field. The next autonomous run MUST NOT either. Human direction is required before any new code change is made.
 - **Blockers (unchanged)**: Notion API token invalid (401). Ledger DLQ (ledger.chitty.cc unreachable from container). CI 0-jobs non-CodeQL (recurring, non-blocking).
+
+### 2026-06-16 (14th halt enforcement — no new code)
+- **Workstream**: Housekeeping only — no new metric, ratio, or statistical field added
+- **Build**: clean | **Tests**: 3290/0/2 (main HEAD 07e7bf8 — candidateScoreNonWinnerQMHMGap)
+- **What was done**:
+  - Startup: npm ci clean, build clean, tests 3290/0/2. Board read from DRIVER-BOARD.md (Notion 401 — recurring).
+  - Main HEAD remains 07e7bf8 (no new merges since 13th halt). Test count has held steady at 3290/0/2 since the 12th–13th halts.
+  - 731+ stale auto/ branches still on remote. Open halt PRs: #752, #754, #755, #756, #757, #758, #759 — none merged (DO NOT merge autonomously).
+  - No new code changes made. HARD STOP honored.
+- **HARD STOP (14th)**: All 5 original workstreams (A–E) are DONE. The explain object has 120+ statistical fields. No new metrics, ratios, or statistical fields will be added by the autonomous runner. Human direction is required. Options:
+  1. Add new genuine workstreams (new backend in servers.json, apps/*-mcp focused server, cast multi-step chaining, scenario harness for real backends)
+  2. Prune buildCastExplanation to ≤10 useful fields + add verbosity param
+  3. Add a CLAUDE.md guardrail explicitly prohibiting new cast explain metric fields
+  4. Disable the hourly schedule
+- **Blockers (unchanged)**: Notion API token invalid (401). Ledger DLQ (ledger.chitty.cc unreachable). CI 0-jobs non-CodeQL (recurring, non-blocking).