chore: add Cortex child governance

tools/validate_steev_child.py

@@ -0,0 +1,35 @@
+#!/usr/bin/env python3
+"""Validate Steev Profile child workspace shell."""
+from __future__ import annotations
+
+import json
+from pathlib import Path
+
+ROOT = Path(__file__).resolve().parents[1]
+REQUIRED = ["AGENTS.md", "README.md", "WORKBOARD.yaml"]
+
+
+def main() -> int:
+    errors: list[str] = []
+    for rel in REQUIRED:
+        if not (ROOT / rel).exists():
+            errors.append(f"missing:{rel}")
+    board = ROOT / "WORKBOARD.yaml"
+    if board.exists():
+        text = board.read_text(encoding="utf-8")
+        for snippet in ["STEEV-WORK-001", "status: candidate", "owner: jp"]:
+            if snippet not in text:
+                errors.append(f"workboard_missing:{snippet}")
+    agents = ROOT / "AGENTS.md"
+    if agents.exists():
+        text = agents.read_text(encoding="utf-8")
+        for snippet in ["child-local", "not Cortex OS Core authority", "python3 tools/validate_steev_child.py"]:
+            if snippet not in text:
+                errors.append(f"agents_missing:{snippet}")
+    result = {"ok": not errors, "validator": "steev-child-v1", "checked": REQUIRED, "errors": errors, "warnings": []}
+    print(json.dumps(result, indent=2, sort_keys=True))
+    return 0 if result["ok"] else 1
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())