feat(audit-meta): add scripts/audit_code_path_audit_coverage.py

Schema validator for the v2 audit's output. Verifies all 14
required profile sections, all 5 cross-audit fields, all 8
decomposition_cost fields. Per feature_flags.md 'delete to
turn off' pattern.

scripts/audit_code_path_audit_coverage.py

@@ -10,4 +10,57 @@ Usage:
  uv run python scripts/audit_code_path_audit_coverage.py
  uv run python scripts/audit_code_path_audit_coverage.py --strict
 """
-from __future__ import annotations
+from __future__ import annotations
+import argparse
+import sys
+from pathlib import Path
+
+REQUIRED_PROFILE_FIELDS: tuple[str, ...] = (
+ "aggregate_kind", "memory_dim", "producers", "consumers",
+ "access_pattern", "access_pattern_evidence", "frequency", "frequency_evidence",
+ "result_coverage", "type_alias_coverage", "cross_audit_findings",
+ "decomposition_cost", "optimization_candidates", "is_candidate",
+)
+REQUIRED_CROSS_AUDIT_FIELDS: tuple[str, ...] = (
+ "weak_types", "exception_handling", "optional_in_baseline",
+ "config_io_ownership", "import_graph",
+)
+REQUIRED_DECOMP_COST_FIELDS: tuple[str, ...] = (
+ "current_cost_estimate", "componentize_savings", "unify_savings",
+ "recommended_direction", "recommended_rationale", "batch_size",
+ "struct_field_count", "struct_frozen",
+)
+
+def main() -> int:
+ parser = argparse.ArgumentParser(description="Meta-audit for code_path_audit v2 output schema.")
+ parser.add_argument("--input-dir", default="docs/reports/code_path_audit/latest", help="Path to the v2 audit output")
+ parser.add_argument("--strict", action="store_true", help="Exit 1 on any violation")
+ args = parser.parse_args()
+ input_dir = Path(args.input_dir)
+ if not input_dir.exists():
+  print(f"ERROR: input dir does not exist: {input_dir}")
+  return 1
+ violations: list[str] = []
+ for dsl_path in sorted(input_dir.glob("aggregates/*.dsl")):
+  content = dsl_path.read_text(encoding="utf-8")
+  for field in REQUIRED_PROFILE_FIELDS:
+   if f"\\ === {field} ===" not in content:
+    violations.append(f"{dsl_path.name}: missing section '{field}'")
+  for field in REQUIRED_CROSS_AUDIT_FIELDS:
+   if field not in content:
+    violations.append(f"{dsl_path.name}: missing cross-audit field '{field}'")
+  for field in REQUIRED_DECOMP_COST_FIELDS:
+   if field not in content:
+    violations.append(f"{dsl_path.name}: missing decomposition_cost field '{field}'")
+ if violations:
+  print(f"Meta-audit: {len(violations)} violations")
+  for v in violations:
+   print(f" - {v}")
+  if args.strict:
+   return 1
+  return 0
+ print("Meta-audit: 0 violations")
+ return 0
+
+if __name__ == "__main__":
+ sys.exit(main())