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/implementing-conduit-security-for-ot-remote-access/references/api-reference.md

@@ -0,0 +1,59 @@
+# API Reference: OT Conduit Security Assessment Agent
+
+## Dependencies
+
+| Library | Version | Purpose |
+|---------|---------|---------|
+| (stdlib only) | Python 3.8+ | Socket-based OT port scanning, JSON processing |
+
+## CLI Usage
+
+```bash
+python scripts/agent.py \
+  --targets 10.10.1.1 10.10.1.2 \
+  --controls-data /assessments/conduit_controls.json \
+  --output-dir /reports/
+```
+
+## Functions
+
+### `scan_ot_ports(target, timeout) -> list`
+TCP connect scan for 9 OT protocol ports (Modbus 502, S7comm 102, OPC UA 4840, etc.).
+
+### `assess_conduit_controls(responses) -> list`
+Evaluates 8 IEC 62443-aligned conduit controls: jump server, MFA, session recording, segmentation, encryption.
+
+### `compute_conduit_risk_score(control_results, open_ports) -> dict`
+Calculates risk score (0-100) penalizing for exposed OT ports and missing controls.
+
+### `generate_report(targets, responses) -> dict`
+Full assessment with port scanning, control evaluation, and risk scoring.
+
+## OT Protocols Scanned
+
+| Port | Protocol |
+|------|----------|
+| 502 | Modbus TCP |
+| 102 | S7comm (Siemens) |
+| 44818 | EtherNet/IP |
+| 20000 | DNP3 |
+| 4840 | OPC UA |
+| 47808 | BACnet |
+
+## IEC 62443 Controls Checked
+
+| ID | Control | IEC Ref |
+|----|---------|---------|
+| C-01 | Jump server required | SR 5.1 |
+| C-02 | MFA at conduit entry | SR 1.1 |
+| C-05 | IT/OT segmentation | SR 5.1 |
+| C-06 | Protocol-aware firewall | SR 5.2 |
+
+## Output Schema
+
+```json
+{
+  "summary": {"controls_implemented": 6, "controls_total": 8},
+  "targets": [{"host": "10.10.1.1", "open_ot_ports": [{"port": 502, "protocol": "Modbus TCP"}]}]
+}
+```