test(docs): align readme badges with registry

README.md

@@ -5,8 +5,8 @@
 [![License: MIT](https://img.shields.io/badge/license-MIT-green)](LICENSE)
 [![Python 3.11+](https://img.shields.io/badge/python-3.11+-blue)](https://www.python.org/)
 [![Techniques](https://img.shields.io/badge/techniques-68-blueviolet)](references/technique_registry.json)
-[![Covered](https://img.shields.io/badge/covered-58-green)](references/technique_registry.json)
-[![Complete](https://img.shields.io/badge/complete-10-brightgreen)](references/technique_registry.json)
+[![Covered](https://img.shields.io/badge/covered-59-green)](references/technique_registry.json)
+[![Complete](https://img.shields.io/badge/complete-9-brightgreen)](references/technique_registry.json)
 [![Partial](https://img.shields.io/badge/partial-0-lightgrey)](references/technique_registry.json)
 
 ---

tests/test_readme_badges.py

@@ -0,0 +1,33 @@
+#!/usr/bin/env python3
+"""Keep README capability badges aligned with the current registry."""
+
+from __future__ import annotations
+
+import json
+import re
+from collections import Counter
+from pathlib import Path
+
+
+ROOT = Path(__file__).resolve().parents[1]
+README = ROOT / "README.md"
+REGISTRY = ROOT / "references" / "technique_registry.json"
+
+
+def _readme_badge_value(name: str) -> int:
+    text = README.read_text(encoding="utf-8")
+    match = re.search(rf"\[!\[{re.escape(name)}\]\(https://img\.shields\.io/badge/{name.lower()}-(\d+)-", text)
+    assert match, f"Missing README badge for {name}"
+    return int(match.group(1))
+
+
+def test_readme_badges_match_technique_registry_counts() -> None:
+    registry = json.loads(REGISTRY.read_text(encoding="utf-8"))
+    techniques = registry["techniques"].values()
+    counts = Counter(item["status"] for item in techniques)
+    total = len(registry["techniques"])
+
+    assert _readme_badge_value("Techniques") == total
+    assert _readme_badge_value("Covered") == counts["covered"]
+    assert _readme_badge_value("Complete") == counts["complete"]
+    assert _readme_badge_value("Partial") == counts["partial"]