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/auditing-terraform-infrastructure-for-security/scripts/agent.py

@@ -1,18 +1,16 @@
 #!/usr/bin/env python3
 """Agent for auditing Terraform infrastructure for security misconfigurations."""
 
-import os
 import json
 import argparse
 import subprocess
 from datetime import datetime
-from pathlib import Path
 
 
 def run_checkov(terraform_dir, output_format="json"):
     """Run Checkov static analysis on Terraform code."""
     cmd = ["checkov", "-d", terraform_dir, "--framework", "terraform", "--output", output_format, "--compact"]
-    result = subprocess.run(cmd, capture_output=True, text=True)
+    result = subprocess.run(cmd, capture_output=True, text=True, timeout=120)
     if output_format == "json":
         try:
             return json.loads(result.stdout)
@@ -24,7 +22,7 @@ def run_checkov(terraform_dir, output_format="json"):
 def run_checkov_on_plan(plan_json_path):
     """Run Checkov on a Terraform plan JSON file for accurate analysis."""
     cmd = ["checkov", "-f", plan_json_path, "--framework", "terraform_plan", "--output", "json"]
-    result = subprocess.run(cmd, capture_output=True, text=True)
+    result = subprocess.run(cmd, capture_output=True, text=True, timeout=120)
     try:
         return json.loads(result.stdout)
     except json.JSONDecodeError:
@@ -34,7 +32,7 @@ def run_checkov_on_plan(plan_json_path):
 def run_tfsec(terraform_dir, min_severity="HIGH"):
     """Run tfsec Terraform security scanner."""
     cmd = ["tfsec", terraform_dir, "--format", "json", "--minimum-severity", min_severity]
-    result = subprocess.run(cmd, capture_output=True, text=True)
+    result = subprocess.run(cmd, capture_output=True, text=True, timeout=120)
     try:
         return json.loads(result.stdout)
     except json.JSONDecodeError: