feat(tools): add check-metadata.py - validates frontmatter fields

tools/coherence/check-metadata.py

@@ -0,0 +1,102 @@
+#!/usr/bin/env python3
+"""
+check-metadata.py - Validates required frontmatter fields
+
+One thing: Check if frontmatter has required fields.
+"""
+
+import sys
+import yaml
+from pathlib import Path
+
+# Required fields for fieldnotes
+REQUIRED_FIELDS = [
+    "title",
+    "date",
+]
+
+# Optional but recommended fields
+RECOMMENDED_FIELDS = [
+    "author",
+    "type",
+    "status",
+]
+
+def parse_frontmatter(filepath):
+    """Parse frontmatter from markdown file."""
+    try:
+        with open(filepath, "r", encoding="utf-8") as f:
+            content = f.read()
+            if content.startswith("---"):
+                parts = content.split("---", 3)
+                if len(parts) >= 3:
+                    return yaml.safe_load(parts[1])
+    except Exception as e:
+        print(f"Error parsing {filepath}: {e}")
+    return {}
+
+def check_metadata(filepath):
+    """Check if file has required frontmatter fields."""
+    fm = parse_frontmatter(filepath)
+    
+    if not fm:
+        return {"error": "No frontmatter found"}
+    
+    issues = []
+    
+    # Check required
+    for field in REQUIRED_FIELDS:
+        if field not in fm or not fm[field]:
+            issues.append(f"Missing required: {field}")
+    
+    # Check recommended
+    for field in RECOMMENDED_FIELDS:
+        if field not in fm or not fm[field]:
+            issues.append(f"Missing recommended: {field}")
+    
+    return {
+        "required_ok": all(f in fm and fm[f] for f in REQUIRED_FIELDS),
+        "recommended_ok": all(f in fm and fm[f] for f in RECOMMENDED_FIELDS),
+        "issues": issues,
+    }
+
+def main():
+    """Check metadata in markdown files."""
+    path_arg = sys.argv[1] if len(sys.argv) > 1 else "."
+    
+    issues = []
+    checked = 0
+    path = Path(path_arg)
+    
+    if path.is_file() and path.suffix == ".md":
+        checked = 1
+        result = check_metadata(path)
+        if result.get("issues"):
+            issues.append((str(path), result["issues"]))
+    elif path.is_dir():
+        for filepath in path.rglob("*.md"):
+            checked += 1
+            result = check_metadata(filepath)
+            if result.get("issues"):
+                issues.append((str(filepath), result["issues"]))
+    else:
+        print(f"Error: {path_arg} is not a file or directory")
+        sys.exit(2)
+    
+    # Output
+    print(f"Checked: {checked}")
+    print(f"Files with issues: {len(issues)}")
+    
+    if issues:
+        print("\nIssues found:")
+        for filepath, file_issues in issues:
+            print(f"  {filepath}")
+            for issue in file_issues:
+                print(f"    - {issue}")
+        sys.exit(1)
+    else:
+        print("All files have required metadata. OK")
+        sys.exit(0)
+
+if __name__ == "__main__":
+    main()