Working doc on auxiliary tool 1814. Open questions inline.
Related: weekly retention 4590, v2 inference 4646.
Cross-section thread: 2026-09-13 process. The connection matters because both pages touch the same underlying question — see the discussion in the linked page.
- Learning → retro → SLA. Worth a second pass; the learning angle keeps coming back.
- Metric → hypothesis → engineer. Worth a second pass; the metric angle keeps coming back.