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# Performing ICS Risk Assessment — API & Tool Reference

> Quick reference for tools, commands, and APIs used in performing-ics-risk-assessment.

## Tools

### `iec-62443`

Zone/conduit modeling

**Usage:**
```bash
python3 zone_model.py --arch network.json
```

**Key Flags:**
  - Zone classification
  - SL gap analysis

---

### `nist-csf`

CSF mapping

**Usage:**
```bash
python3 csf_assess.py --profile ics.yaml
```

**Key Flags:**
  - Function-level assessment

---

## Integration Notes

- All tools should be run with least-privilege access appropriate to the task
- Log all tool invocations for audit trail
- Validate tool output before acting on results
- Never execute write operations against production ICS without explicit authorization

## See Also

- Parent skill: [OT/ICS Security](../../../SKILL.md)
- NIST SP 800-82: Guide to OT Security
