Add freshness and data quality gates

Co-Authored-By: Codex <noreply@openai.com>

Author: Pigbibi

.github/workflows/ci.yml

@@ -22,7 +22,7 @@ jobs:
       - name: Run tests
         run: python -m pytest -q
       - name: Validate example signal
-        run: python scripts/validate_latest_signal.py examples/latest_signal.example.json
+        run: python scripts/validate_latest_signal.py examples/latest_signal.example.json --allow-expired
       - name: Run example overlay replay
         run: python scripts/backtest_signal_overlay.py --prices examples/price_history.example.csv --signals examples/signal_history --symbol QQQ
       - name: Run example price extraction

.github/workflows/theme_momentum_snapshot.yml

@@ -70,6 +70,7 @@ jobs:
             ARGS+=(--strict-downloads)
           fi
           python scripts/build_theme_momentum_snapshot.py "${ARGS[@]}" | tee /tmp/theme_momentum_summary.json
+          python scripts/validate_theme_momentum_snapshot.py data/output/theme_momentum_snapshot.json
           {
             echo "## Theme momentum snapshot"
             echo ""

data/output/latest_signal.json

@@ -1,5 +1,7 @@
 {
-  "schema_version": "1",
+  "schema_version": "2",
+  "model_version": "ai-shadow-context-v1",
+  "scoring_version": "ai-shadow-context-rules-v1",
   "as_of": "2026-06-25",
   "generated_at": "2026-06-27T08:22:28.245044Z",
   "mode": "shadow",
@@ -356,4 +358,4 @@
       "rationale": "Industrial automation remains a background context rather than a current positive signal."
     }
   }
-}
+}

data/output/latest_signal.manifest.json

@@ -1,9 +1,9 @@
 {
   "artifact": "data/output/latest_signal.json",
-  "artifact_sha256": "39368aa3eae5da168665fde58edbe17bbef1c70fa4070b58051c928aaefc0b1a",
-  "as_of": "2026-05-31",
-  "generated_at": "2026-05-31T10:52:51Z",
-  "history_artifact": "data/output/signal_history/2026-05-31.json",
+  "artifact_sha256": "5fb8891cb793663636b65a70c4bb96c889533ded2a94cef2f7ae6e0c6fa482eb",
+  "as_of": "2026-06-25",
+  "generated_at": "2026-06-27T08:22:28.245044Z",
+  "history_artifact": "data/output/signal_history/2026-06-25.json",
   "mode": "shadow",
   "policy": {
     "downstream_use": "Manifest only records provenance for a shadow research artifact; it does not authorize execution.",

data/output/signal_history/2026-05-28.json

@@ -1,5 +1,7 @@
 {
-  "schema_version": "1",
+  "schema_version": "2",
+  "model_version": "shadow-signal-example-v1",
+  "scoring_version": "shadow-signal-example-rules-v1",
   "as_of": "2026-05-28",
   "generated_at": "2026-05-28T14:38:47.474891Z",
   "mode": "shadow",

data/output/signal_history/2026-05-31.json

@@ -31,7 +31,9 @@
     "requires_fundamental_and_valuation_review",
     "no_account_level_advice"
   ],
-  "schema_version": "1",
+  "schema_version": "2",
+  "model_version": "shadow-signal-example-v1",
+  "scoring_version": "shadow-signal-example-rules-v1",
   "symbol_bias": {
     "AMD": {
       "bias": "watch",