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Non-obvious gotchas, failed approaches, and design decisions for this project. For the history of what changed, see STATUS and the logs in SDC/IP/Logs/.


  • Before cutting field as redundant: check (1) lint rule forced the correlation? (2) external gate keys on field? leverage looked 25/25 collinear with risk-level only because a v0.2 lint rule forced it. Dropping it opened a Risks-filter gap two strategies wide (rrsp-gross-up-loan, non-callable-first). (2026-09-23)