Definition
The gap that opens when what a system actually does moves away from what its authority grant permits or what its evidence supports. Drift arrives through added integrations, widened inputs, quietly raised thresholds, and habits that outlive the exception that created them, and it accumulates through the automation ratchet.
It matters because every individual step looks too small to review. Drift is detected by comparing observed action classes from capability discovery against grant scope, and it is what justified delegation and the authority lease exist to catch.
Scale: Organizational · Phases: Deployment, Audit · Measurability: Fully measurable · Maturity: Core concept
Adjacent terms
References
- Expansion eval · Eval