Notes on 2026-09-09 training. Picked back up after the last review.
Related: 2024-01-05 fine-tune, 2026-09-05 cohort.
Cross-section thread: deprecated PMF 8717. The connection matters because both pages touch the same underlying question — see the discussion in the linked page.
- 401k → series-a → rollback. Worth a second pass; the 401k angle keeps coming back.
- Tool → wedge → context. Worth a second pass; the tool angle keeps coming back.
Decisions: shipped the feature flag, rolled back the SLO tweak, queued the postmortem for next week.