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/performing-cloud-native-forensics-with-falco/scripts/agent.py

@@ -1,11 +1,11 @@
 #!/usr/bin/env python3
 """Agent for managing Falco rules and parsing alerts for container forensics."""
 
-import os
 import json
 import argparse
-from datetime import datetime
+import os
 from collections import defaultdict
+from datetime import datetime
 from pathlib import Path
 
 import yaml
@@ -116,7 +116,8 @@ def summarize_alerts(alerts):
     }
 
 
-def check_falco_health(falco_url="http://localhost:8765"):
+def check_falco_health(falco_url=None):
+    falco_url = falco_url or os.environ.get("FALCO_URL", "http://localhost:8765")
     """Check Falco health via HTTP endpoint."""
     try:
         resp = requests.get(f"{falco_url}/healthz", timeout=5)
@@ -126,7 +127,8 @@ def check_falco_health(falco_url="http://localhost:8765"):
         return {"status": "unreachable", "error": str(e)}
 
 
-def get_falco_version(falco_url="http://localhost:8765"):
+def get_falco_version(falco_url=None):
+    falco_url = falco_url or os.environ.get("FALCO_URL", "http://localhost:8765")
     """Get Falco version information."""
     try:
         resp = requests.get(f"{falco_url}/version", timeout=5)
@@ -155,7 +157,7 @@ def main():
     parser = argparse.ArgumentParser(description="Falco Cloud Native Forensics Agent")
     parser.add_argument("--alert-file", help="Path to Falco JSON alert log")
     parser.add_argument("--rules-output", default="custom_falco_rules.yaml")
-    parser.add_argument("--falco-url", default="http://localhost:8765")
+    parser.add_argument("--falco-url", default=os.environ.get("FALCO_URL", "http://localhost:8765"))
     parser.add_argument("--output", default="falco_report.json")
     parser.add_argument("--action", choices=[
         "generate_rules", "parse_alerts", "health", "full_analysis"