Add folder anatomy (scripts/agent.py + references/api-reference.md) for 648 cybersecurity skills

Complete skill folder anatomy across all cybersecurity skills:
- scripts/agent.py: 80-150 line Python agents using real libraries (impacket,
  boto3, azure-mgmt-*, kubernetes, pefile, yara, scapy, shodan, stix2, etc.)
- references/api-reference.md: real API documentation with method signatures
- LICENSE: MIT license for all skill folders

skills/conducting-cloud-infrastructure-penetration-test/references/api-reference.md

@@ -0,0 +1,47 @@
+# Cloud Infrastructure Penetration Test — API Reference
+
+## Libraries
+
+| Library | Install | Purpose |
+|---------|---------|---------|
+| boto3 | `pip install boto3` | AWS SDK for Python — EC2, S3, IAM, security group enumeration |
+| ScoutSuite | `pip install scoutsuite` | Multi-cloud security auditing tool |
+| pacu | `pip install pacu` | AWS exploitation framework for penetration testing |
+
+## Key boto3 Methods
+
+| Method | Description |
+|--------|-------------|
+| `ec2.describe_security_groups()` | List all security groups with inbound/outbound rules |
+| `ec2.describe_instances()` | Enumerate EC2 instances with metadata options |
+| `s3.list_buckets()` | List all S3 buckets in the account |
+| `s3.get_bucket_acl(Bucket=name)` | Check bucket ACL for public access grants |
+| `s3.get_bucket_policy(Bucket=name)` | Retrieve bucket resource policy JSON |
+| `iam.list_users()` | Enumerate all IAM users |
+| `iam.list_attached_user_policies(UserName=u)` | List managed policies attached to a user |
+| `iam.list_access_keys(UserName=u)` | List access keys with creation dates |
+| `iam.simulate_principal_policy()` | Test effective permissions for a principal |
+| `sts.get_caller_identity()` | Identify current credentials (account, ARN) |
+
+## ScoutSuite CLI
+
+```bash
+scout aws --no-browser --report-dir ./report
+scout azure --cli --no-browser
+scout gcp --no-browser
+```
+
+## Key Constants
+
+| Constant | Value |
+|----------|-------|
+| IMDSv2 required | `HttpTokens: "required"` |
+| Public ACL URI | `http://acs.amazonaws.com/groups/global/AllUsers` |
+| Admin policy ARN | `arn:aws:iam::aws:policy/AdministratorAccess` |
+
+## External References
+
+- [AWS Penetration Testing Policy](https://aws.amazon.com/security/penetration-testing/)
+- [ScoutSuite Documentation](https://github.com/nccgroup/ScoutSuite/wiki)
+- [Pacu Wiki](https://github.com/RhinoSecurityLabs/pacu/wiki)
+- [boto3 EC2 Reference](https://boto3.amazonaws.com/v1/documentation/api/latest/reference/services/ec2.html)