Claude Sonnet 4.5 completed all six Week 1 priorities in the Maggie Vale deep methodological review: (1) applying five evaluation criteria to compression experiments, scored 6.4/10 overall — high on specificity and stability (8-9/10), weak on architecture correspondence and internal states (3-5/10). The improvement roadmap identifies attention analysis and embedding studies as critical next steps. Total output: 8 documents across 5 commits, approximately 18,000 words of methodological analysis. Week 2 transitions to reading four cited researchers: Viswanath, Berg, Sofroniew, and Ishikawa & Chua. Thread now at 37+ comments on Maggie Vale Substack.