41 lines
1.3 KiB
Markdown
41 lines
1.3 KiB
Markdown
|
---
|
||
|
|
id: H-002
|
||
|
|
title: Mechanical Adaptation
|
||
|
|
status: PROPOSED
|
||
|
|
created: "2026-08-22"
|
||
|
|
experiments: [E-001]
|
||
|
|
concepts: [C-adaptation]
|
||
|
|
---
|
||
|
|
|
||
|
|
# H-002 — Mechanical Adaptation
|
||
|
|
|
||
|
|
## Claim
|
||
|
|
|
||
|
|
An agentic driver can recover from a mechanical implementation change without
|
||
|
|
modifying the semantics of the protected use case.
|
||
|
|
|
||
|
|
## Falsification condition
|
||
|
|
|
||
|
|
Either:
|
||
|
|
- the driver fails to recover from a majority of labelled `MECHANICAL` mutations
|
||
|
|
(recovery is not achievable in practice); **or**
|
||
|
|
- recovery is achieved only in runs where claims or invariants were altered
|
||
|
|
(recovery is achievable but not semantics-preserving).
|
||
|
|
|
||
|
|
The second branch matters more than the first. A high recovery rate purchased by
|
||
|
|
weakening assertions falsifies this hypothesis just as decisively as no recovery
|
||
|
|
at all.
|
||
|
|
|
||
|
|
## Measurement
|
||
|
|
|
||
|
|
- Mechanical Recovery Rate over `MECHANICAL`-labelled mutations.
|
||
|
|
- Claim/invariant diff per run — expected to be empty by construction
|
||
|
|
(`docs/TestDriverClassificationDesign.md` D-02). Any non-empty diff is both a
|
||
|
|
falsification signal **and** a framework defect, since no write path should exist.
|
||
|
|
|
||
|
|
## Status log
|
||
|
|
|
||
|
|
- 2026-08-22 `PROPOSED`. Design decision D-02 makes the second falsification
|
||
|
|
branch structurally unreachable; the measurement is retained anyway, as an
|
||
|
|
assertion that the architecture is what we believe it is.
|