/assess

Assess compliance with NIST 800-53 controls

# NIST 800-53 Assessment

Evaluates compliance against NIST 800-53 control families.

## Arguments
- `$1` - Control family or baseline (required: AC, AT, AU, etc. or low, moderate, high)
- `$2` - Revision (optional: r4, r5, defaults to r5)

## Control Families

| ID | Family |
|----|--------|
| AC | Access Control |
| AT | Awareness and Training |
| AU | Audit and Accountability |
| CA | Assessment, Authorization, and Monitoring |
| CM | Configuration Management |
| CP | Contingency Planning |
| IA | Identification and Authentication |
| IR | Incident Response |
| MA | Maintenance |
| MP | ...