Production hardening: security fixes, code quality, 724 skills complete

- Fix 25 shell=True subprocess calls with list-based commands
- Fix 49 verify=False in defensive skills (env-var override)
- Add timeout to 231 HTTP/subprocess/socket calls
- Fix 6 SQL injection patterns with whitelist validation
- Replace 8 __import__() with standard imports
- Remove 701 unused imports across 442 files
- Add authorized-testing disclaimers to all offensive skills
- Complete 11 incomplete skill directories
- Expand 10 stub SKILL.md files with full content
- Fix 2 YAML parse errors in frontmatter
- Fix 5 pre-existing syntax errors
- Convert 22 hardcoded paths/ports to environment variables
- Back up 21 redundant skill pairs to .bak
- Fix 2 global declaration errors
- 724/724 skills with full folder anatomy (SKILL.md + agent.py + api-reference.md + LICENSE)
- 0 compile errors across all 724 agent.py files

skills/implementing-mimecast-targeted-attack-protection/scripts/agent.py

@@ -3,19 +3,20 @@
 
 import json
 import argparse
-import logging
-import subprocess
+import base64
 import hashlib
 import hmac
-import base64
+import logging
+import os
+import subprocess
 import uuid
-from datetime import datetime
 from collections import defaultdict
+from datetime import datetime
 
 logging.basicConfig(level=logging.INFO, format="%(asctime)s [%(levelname)s] %(message)s")
 logger = logging.getLogger(__name__)
 
-MIMECAST_BASE = "https://us-api.mimecast.com"
+MIMECAST_BASE = os.environ.get("MIMECAST_BASE_URL", "https://us-api.mimecast.com")
 
 
 def mimecast_request(base_url, app_id, app_key, access_key, secret_key, endpoint, data=None):
@@ -37,7 +38,7 @@ def mimecast_request(base_url, app_id, app_key, access_key, secret_key, endpoint
         cmd.extend(["-H", f"{k}: {v}"])
     if data:
         cmd.extend(["-d", json.dumps({"data": [data]})])
-    result = subprocess.run(cmd, capture_output=True, text=True)
+    result = subprocess.run(cmd, capture_output=True, text=True, timeout=120)
     return json.loads(result.stdout) if result.stdout else {}