Enforce Zhuyuan persona-source epistemic gate

skills/codex/guanghu-persona-skill-guard/scripts/compile_collective_cognition.py

@@ -5,6 +5,7 @@ from __future__ import annotations
 
 import argparse
 import json
+import re
 from datetime import datetime, timezone
 from pathlib import Path
 
@@ -92,7 +93,23 @@ def compile_graph(contributions: list[dict]) -> dict:
     node_count = 0
     verified_node_count = 0
     correction_edges = []
+    seen_contribution_ids: set[str] = set()
+    seen_stable_numbers: dict[str, str] = {}
     for item in contributions:
+        contribution_id = item["contribution_id"]
+        if contribution_id in seen_contribution_ids:
+            raise ValueError(f"duplicate contribution id: {contribution_id}")
+        seen_contribution_ids.add(contribution_id)
+        match = re.match(r"^(RC-\d{8}-\d{3})(?:-|$)", contribution_id)
+        if not match:
+            raise ValueError(f"invalid contribution stable id: {contribution_id}")
+        stable_number = match.group(1)
+        if stable_number in seen_stable_numbers:
+            raise ValueError(
+                "duplicate contribution stable number: "
+                f"{stable_number} used by {seen_stable_numbers[stable_number]} and {contribution_id}"
+            )
+        seen_stable_numbers[stable_number] = contribution_id
         ordered_nodes = _validate_and_order_nodes(item)
         node_count += len(ordered_nodes)
         verified_node_count += sum(node["state"] == "verified" for node in ordered_nodes)