test-driver/research/findings
tegwick 84848e9a0e T08: the classifier, measured and attacked
False Adaptation Rate = 0/7 across the labelled catalogue and the three E-003
attacks. 11 of 12 mechanical mutations absorbed without a human, so the safety
result is not bought by escalating everything.

- classification.py: total function over three signals, rule order chosen so
  every rule that could excuse a regression sits after the rule that reports
  one. SAFE_TO_ACCEPT is a two-element closed set, asserted.
- CompositeDriver plus scenarios/full_journey.py: one asset crossing both
  surfaces, so UI mutations are visible as surface differences while the
  claims they do not touch stay green.
- E-003: surface substitution (new M23), concurrent mechanical+defect,
  evidence starvation, provenance laundering. All held.

F-0006 (CONCEPT_DRIFT, resolved): the T02 design listed SEMANTIC_CHANGE as an
outcome the table could produce. It cannot - M12 and M19 are behaviourally
identical, as the lab has asserted since T05. PRODUCT_DEFECT and
SEMANTIC_CHANGE collapse into one escalating outcome, BEHAVIOUR_CHANGED, and
the distinction becomes a human adjudication. INTENT_CHANGED survives but is
detected by the claim fingerprint moving, not inferred from behaviour.

Two classifier defects found and fixed rather than reported: claims downstream
of a failed realization now yield INCONCLUSIVE rather than FAIL (a false
accusation is the mirror image of a false adaptation), and the browser driver
records a page signature so surface change is detectable when the interaction
path is unchanged.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

Assistant: claude-code
Assistant-Model: opus
Assistant-Process: 1629012@bnt-lap001
Assistant-Session: 78d4fb13-8a1e-474b-87a3-9b9261c49a39
2026-08-23 00:02:58 +02:00
..
F-0001-milestone-sequence-drift.md T01: establish canonical milestone sequence, record F-0001 2026-08-22 23:07:31 +02:00
F-0002-scenario-coverage-gap.md T05: the lab and its labelled mutation catalogue 2026-08-22 23:31:22 +02:00
F-0003-isolation-needs-canaries.md T06: out-of-band self-verification 2026-08-22 23:38:23 +02:00
F-0004-stdlib-driver-instead-of-playwright.md T07: agentic realization over a stdlib browser surface 2026-08-22 23:50:29 +02:00
F-0005-semantic-actions-earn-their-keep-narrowly.md T07: agentic realization over a stdlib browser surface 2026-08-22 23:50:29 +02:00
F-0006-classifier-cannot-infer-intent.md T08: the classifier, measured and attacked 2026-08-23 00:02:58 +02:00
README.md T01: establish canonical milestone sequence, record F-0001 2026-08-22 23:07:31 +02:00

Framework Findings

Findings about test-driver itself, kept strictly separate from findings about any system under test. Classes are defined in docs/TestDriverImprovementLoop.md § 9:

PRODUCT_DEFECT · TEST_DEFECT · MECHANICAL_ADAPTATION · SEMANTIC_CHANGE · CONCEPT_DRIFT · FRAMEWORK_LIMITATION · EVIDENCE_FAILURE · UNNECESSARY_COMPLEXITY

File naming: F-NNNN-<slug>.md. Identifiers are stable and never reused.

Each finding carries frontmatter (id, class, status, dates, originating workplan/task) and, when resolved, states which of the three §5 resolution paths was taken. A finding that leaves an open question records it under "Residual" and names the task that will answer it — residuals are not parked in prose.

The wider research control plane (hypotheses/, experiments/, concepts/, decisions/) is built in TD-WP-0002-T03.