update first - 84

2026-06-30 02:21:39 +09:00
commit 07ac1bdcdd
561 changed files with 88164 additions and 0 deletions
@@ -0,0 +1,66 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# CASAN Level 5 drift detector.
+# Usage:
+#   drift-detect.sh <golden-file> <candidate-file> <report-json>
+
+GOLDEN="${1:-}"
+CANDIDATE="${2:-}"
+REPORT="${3:-}"
+
+if [[ -z "$GOLDEN" || -z "$CANDIDATE" || -z "$REPORT" ]]; then
+  echo "Usage: drift-detect.sh <golden-file> <candidate-file> <report-json>" >&2
+  exit 64
+fi
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+PROJECT_ROOT="$(cd "$SCRIPT_DIR/../../.." && pwd)"
+mkdir -p "$(dirname "$REPORT")" "$PROJECT_ROOT/.specify/logs/level5"
+
+python3 - "$GOLDEN" "$CANDIDATE" "$REPORT" <<'PY'
+import difflib
+import hashlib
+import json
+import pathlib
+import sys
+from datetime import datetime, timezone
+
+golden_path = pathlib.Path(sys.argv[1])
+candidate_path = pathlib.Path(sys.argv[2])
+report_path = pathlib.Path(sys.argv[3])
+
+golden = golden_path.read_text(encoding="utf-8")
+candidate = candidate_path.read_text(encoding="utf-8")
+
+similarity = difflib.SequenceMatcher(None, golden, candidate).ratio()
+length_delta = abs(len(candidate) - len(golden)) / max(len(golden), 1)
+
+status = "pass"
+action = "allow"
+if similarity < 0.70 or length_delta > 0.50:
+    status = "fail"
+    action = "block_or_fallback"
+elif similarity < 0.85 or length_delta > 0.30:
+    status = "warn"
+    action = "require_review"
+
+report = {
+    "timestamp": datetime.now(timezone.utc).strftime("%Y-%m-%dT%H:%M:%SZ"),
+    "harness": "L5-drift-detection",
+    "status": status,
+    "action": action,
+    "similarity_ratio": round(similarity, 4),
+    "length_delta_ratio": round(length_delta, 4),
+    "golden_hash": hashlib.sha256(golden.encode()).hexdigest(),
+    "candidate_hash": hashlib.sha256(candidate.encode()).hexdigest(),
+    "golden_file": str(golden_path),
+    "candidate_file": str(candidate_path),
+}
+
+report_path.write_text(json.dumps(report, indent=2) + "\n", encoding="utf-8")
+print(f"DRIFT_{status.upper()} similarity={report['similarity_ratio']} length_delta={report['length_delta_ratio']} report={report_path}")
+
+if status == "fail":
+    raise SystemExit(2)
+PY