Andrew Branch
90d · built 2026-09-10
Performance
What Andrew Branch shipped in the selected window, measured in ETV, and how it compares with the 90 days before it.
Effective capacity
+0.9engineers
delivers like 1.9 (1.9x pre-AI)
Output (ETV)
42.4ETV
+140.9% vs 17.6 prior
Features share
53.4%
+1.7 pp vs prior window
Fixes share
7.8%
−4.7 pp vs prior window
Work mix
53.4% Features10.9% Maintenance25.5% Tests2.4% Docs7.8% Fixes
39 commits over 90 days, ending 2026-09-10.
Where this dev ranks
Percentile against the global top-100 leaderboard (all-time totals).
- By commits
- Top 91 %
- By Features share
- Top 5 %
Daily performance
Daily ETV, stacked by Features, Maintenance, Tests, Docs and Fixes.
Repository spread
Where this developer's commits land. Concentrated work (top1 > 80%) vs polymath spread (top1 < 30%).
| Repo | Commits | ETV |
|---|---|---|
| TypeScript | 40 | 43.6 |
Most impactful commits
Top 10 by ETV in the last 90 days.
- 23.9ETVContent mappers (microsoft/typescript-go#4712) Co-authored-by: Michael Arnaldi <michael.arnaldi@effectful.co>github.com-microsoft-TypeScript · 57791fb7 · 2026-08-19
- 2.8ETVContent mappers round 2 (#63936)github.com-microsoft-TypeScript · d6c4afdd · 2026-08-21
- 1.6ETVDecouple snapshot ownership from project.Session so api.Session only uses one in LSP mode (#64163)github.com-microsoft-TypeScript · 45e8f87b · 2026-09-04
- 1.3ETV[api] Add option to collect timing info (microsoft/typescript-go#4512)github.com-microsoft-TypeScript · 4779a644 · 2026-07-02
- 1.2ETVAllow LSP server to use builtin watcher on Windows and macOS (microsoft/typescript-go#4288) Co-authored-by: Copilot <198982749+Copilot@users.noreply.github.com> Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>github.com-microsoft-TypeScript · 0d0cfa52 · 2026-06-12
- 1.1ETV[api] Batch of improvements, fixes, and additions (microsoft/typescript-go#4493) Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>github.com-microsoft-TypeScript · b2cf588f · 2026-06-30
- 1.0ETVAPI emit (microsoft/typescript-go#4699) Co-authored-by: Pier Fumagalli <pier@usrz.com> Co-authored-by: Titian Cernicova-Dragomir <tcernicovad1@bloomberg.net> Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>github.com-microsoft-TypeScript · 5531ddd8 · 2026-07-24
- 0.8ETVExpose ImportAdder to IPC API (microsoft/typescript-go#3881)github.com-microsoft-TypeScript · 11ad4c9f · 2026-07-13
- 0.7ETV[api] Move language service methods into dedicated namespace (microsoft/typescript-go#4893)github.com-microsoft-TypeScript · 1f5064d2 · 2026-08-13
- 0.7ETVFix more return types that can’t actually be undefined (microsoft/typescript-go#4569)github.com-microsoft-TypeScript · 4c5ca65f · 2026-07-08