Licence overrides are revoked, never edited, and a withhold beats everything

Context

Staff access exceptions need to remain explainable after their periods end.

Decision

Create a decision with a reason and period, then withdraw it rather than rewriting it. Evaluate the period at read time and give active withholds priority.

Alternatives Considered

Mutable values lose the account of earlier decisions. Recency-based precedence can erase deliberate refusals. Scheduled expiry would introduce unnecessary execution dependence.

Consequences

Staff can inspect historical authors, reasons and withdrawals rather than only today’s licence value.