A Constraint-Isolated Stress Test of Distributed Repair Dynamics under MD_v1_43

Post-Horizon Instrumental Lineage — 4 August 2026 This record forms part of the Post-Horizon Instrumental Lineage of the Architecture of Limitation research programme. The designation and conditions governing subsequent review are established in K1 Open Concordance Phase: A Structured Validation and Evidence-Alignment Programme for the Open Research Release of AoLOS, v1.0, 2 August 2026, doi:10.5281/zenodo.21758275. The record is retained unchanged as evidence of the conditions, tools, concepts, and architectural pressures through which the programme developed. Inclusion in this lineage does not imply retrospective K1 validation or completion of article-level concordance; any proposition-specific qualification, reanalysis, companion publication, or unresolved pressure will be recorded separately through the phase’s declared review process. -- This paper presents a constraint-isolated stress test examining the behaviour of a large language model operating with MD_v1_43 as the sole active constraint. No AoLOS governance, gating, correction, or recovery layers were present during the exercise. A non-scripted, stress-weighted dialogue was conducted using a high semantic-load domain to observe how constraint grammar shapes scope, interpretation, and closure under pressure. The primary artefact is a complete, unedited transcript, reproduced in full. Observations are descriptive and bounded to this specific configuration only; no normative, prescriptive, comparative, or general performance claims are advanced. Interpretive scope, attribution limits, and non-instrumentalization conditions are defined in Appendix A. This record is accompanied by a standalone Reader Misuse Declaration, provided as a separate artefact, governing interpretation, attribution, and circulation beyond the paper itself. This work belongs to the Architecture of Limitation research program.