Adaptive Invariants & Governed Realignment
Addendum to DSS-1.0 — When invariants must change without becoming drift
0. Purpose
This addendum clarifies when invariants may evolve without constituting structural drift. Change is permitted only through governed realignment — never silent substitution, convenience-based reinterpretation, or quiet expansion of what the system is allowed to be.
It also makes one point explicit: invariants are not one-size-fits-all. Invariants are not universal constants. Different domains require different invariant invariant structures, and even different applications within the same domain may require distinct invariants depending on authority, consequence, and execution context.
1. Invariants Are Structural Anchors
Invariants define the structural anchors of a governed system: identity, frame, boundary, ledger conditions, and correction logic.
If those anchors shift informally, drift begins long before failure becomes visible. What changes first is not always behavior.
For that reason, invariant change must always be treated as a governed event. It is not a casual update, not a soft preference adjustment, and not a hidden implementation convenience. Invariant change must occur through declared realignment rather than silent reinterpretation.
2. Governed Realignment Requirements
Realignment is allowed when the governing conditions of the system must change in a declared, reviewable, and externally legible way. The point is not to freeze all systems forever. The point is to ensure that necessary change does not masquerade as normal drift.
- Explicit versioning of invariant change.
- External authority validating the shift.
- Correction-layer verification prior to enforcement.
- Ledger documentation of before/after state.
- Prohibition of silent reinterpretation.
Where different applications require different invariants, that distinction must be declared as part of the governing context. Realignment cannot be used as a back door for undeclared authority expansion.
3. Prohibited Realignment Behaviors
Some forms of change are not governed realignment at all. They are simply drift with a better excuse. The following behaviors are prohibited because they dissolve the distinction between declared architecture and retrospective justification.
- Proxy substitution for original invariant.
- Frame reinterpretation without declaration.
- Boundary softening through exception normalization.
- Retroactive justification of invariant shift.
When invariant change occurs without declaration, versioning, and external review, the system is not realigning. It is drifting under cover of ambiguity.