Real PR threads from CockroachDB, Prometheus, and Oban showing:
- Handle pattern (PR #142059): 2.5 months, trace span issues discovered in review
- slog migration (PR #14906): 'merge and iterate', 162 files, one commit for 3.0
- AppenderV2 (issue #17632): maintainer pushback defeated by 'it's not user-facing'
- Oban inline testing (PR #684): <24h, zero discussion, solo maintainer
Key insight: 'merge and iterate' beats 'perfect before merge' for
pattern introductions.
Rodin
7e99faff59