Yoichi Hirai
GENERATIONAL TALENThall-of-fame maintainer, high and balanced, earned over years.
Based on public GitHub activity only. Not a full picture of private work.
TRAITS
SIGNALS
- Connector+
- Rapid Fire+
- Marathoner+
- Maintainer+
- Veteran+
- Polyglot+
- Star Magnet
- Magnetic

Unclaimed
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GITHUB METRICS
AI Summary
Yoichi Hirai (pirapira) earns a 95/99 Gitwork scout score for long-tenured, high-impact open-source delivery in Haskell and systems languages.
- Sustained output is exceptional: 35,668 commits, 55,703 lifetime public contributions, 46k contributions this year, and 18 years on GitHub (endurance signal 95/99).
- Collaboration is strong: 9,979 pull requests, 138 code reviews, 221 issues, and work across 13 languages including Haskell, OCaml, Rust, Verilog, and Coq (collaboration signal 90/99).
- High-impact outcomes show broad reach: 2,155 stars earned, top repo reach of 850, and 802 followers (high-impact signal 86/99).
- All signals are from public GitHub output only; with 0 owned public repos, impact likely reflects upstream and maintainer contributions rather than personal repository ownership.
Strong fit for feature delivery and high-impact shipping roles that need a long-tenured maintainer with steady, balanced output earned over many years and a high delivery pace. The language profile points to correctness-critical, functional, and systems-adjacent work. Confirm scope, team expectations, and recent activity in interviews, since this brief reflects public GitHub evidence only.
