Complete folder anatomy for all 649 cybersecurity skills + update LICENSE to Mahipal

- Add scripts/agent.py and references/api-reference.md to all remaining skills
- Update all 648 LICENSE files: copyright now reads 'Mahipal'
- Add implementing-security-monitoring-with-datadog (new skill with full anatomy)
- All 649 skills now have: SKILL.md, LICENSE, scripts/agent.py, references/api-reference.md

skills/implementing-ot-incident-response-playbook/references/api-reference.md

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+# API Reference: Implementing OT Incident Response Playbook
+
+## ICS-CERT Incident Categories
+
+| Category | Severity | Description | Response Time |
+|----------|----------|-------------|---------------|
+| Unauthorized Access | P1 - Critical | PLC/HMI/SIS unauthorized access | Immediate |
+| Malware/Ransomware | P1 - Critical | OT network malware (EKANS, Triton) | Immediate |
+| DoS/DDoS | P1 - Critical | OT communication disruption | Immediate |
+| Network Intrusion | P2 - High | IT-OT boundary breach | < 4 hours |
+| Reconnaissance | P3 - Medium | OT network scanning detected | < 24 hours |
+| Policy Violation | P4 - Low | Unauthorized configuration change | < 72 hours |
+
+## Purdue Model Containment Zones
+
+| Level | Name | Containment Action |
+|-------|------|--------------------|
+| L0 | Physical Process | Manual control, verify SIS |
+| L1 | Basic Control (PLC, SIS) | Isolate network, do NOT power off |
+| L2 | Supervisory (HMI, SCADA) | Disconnect HMI, activate backup |
+| L3 | Operations (Historian) | Isolate segment, preserve logs |
+| L3.5 | DMZ | Sever IT-OT bridge |
+| L4-5 | Enterprise IT | Standard IT IR procedures |
+
+## NIST SP 800-82 IR Controls
+
+| Control | Title | OT Consideration |
+|---------|-------|------------------|
+| IR-1 | IR Policy | Must address safety-critical systems |
+| IR-4 | Incident Handling | Include OT engineering team |
+| IR-5 | Incident Monitoring | Passive monitoring only in OT |
+| IR-6 | Incident Reporting | CISA ICS-CERT within 72 hours |
+| IR-8 | IR Plan | Separate OT and IT playbooks |
+
+## SANS PICERL Framework for OT
+
+| Phase | OT-Specific Actions |
+|-------|---------------------|
+| Preparation | Maintain PLC backup programs, define safe states |
+| Identification | Correlate OT alerts with process anomalies |
+| Containment | Network isolation without process disruption |
+| Eradication | Restore from known-good PLC/HMI configurations |
+| Recovery | Staged restart with operator verification |
+| Lessons Learned | Update OT-specific TTPs and detection rules |
+
+## Reporting Obligations
+
+| Authority | Timeframe | Trigger |
+|-----------|-----------|---------|
+| CISA ICS-CERT | 72 hours | Critical infrastructure impact |
+| Sector ISAC | 48 hours | Sector-relevant threat |
+| TSA (pipeline) | 12 hours | Pipeline cybersecurity incident |
+| NERC (electric) | 1 hour | Cyber Security Incident |
+
+### References
+
+- NIST SP 800-82 Rev 3: https://csrc.nist.gov/publications/detail/sp/800-82/rev-3/final
+- IEC 62443-4-2: https://www.isa.org/standards-and-publications/isa-standards/isa-iec-62443-series-of-standards
+- CISA ICS-CERT: https://www.cisa.gov/topics/industrial-control-systems