Repository: github.com/erin-wallace-demo/postgres-connection-pool
Code craft
Connection-pool implementation handles pgBouncer transaction-mode quirks, idle-in-transaction reaping, and prepared-statement cache invalidation across reconnects. Comments explain the 'why' on three non-obvious choices. Test coverage includes a fault-injection harness for partition recovery.
AI-collaboration discipline
No .cursorrules, CLAUDE.md, or AGENTS.md across any of the sampled repos. Commit messages and PR descriptions don't reference AI-assisted edits. Asymmetric scoring: absence stays neutral here — the craft signal is independently strong.
Review discipline
PR review comments engage with design tradeoffs, not just style. 'Why this approach over X?' threads on at least 4 of the last 10 merged PRs. Reviewer responses cite benchmarks and spec sections.
Synthesis
Erin shows 10+ years of OSS-grade craft. AI-tooling exposure is limited; recruiter judgment whether AI-collaboration matters for the role.