Navigara

Josh Liebow-Feeser

90d · built 2026-09-08

top-100 contributor

Performance

What Josh Liebow-Feeser shipped in the selected window, measured in ETV, and how it compares with the 90 days before it.

Effective capacity

+40.7engineers

delivers like 41.7 (41.7x pre-AI)

Output (ETV)

65.0ETV

+658.9% vs 8.6 prior

Features share

67.0%

+14.7 pp vs prior window

Fixes share

1.3%

−3.1 pp vs prior window

Work mix

67% Features3.8% Maintenance1.5% Tests26.4% Docs1.3% Fixes

40 commits over 90 days, ending 2026-09-08.

Where this dev ranks

Percentile against the global top-100 leaderboard (all-time totals).

By total ETV
Top 54 %
By commits
Top 78 %
By Features share
Top 2 %

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%).

100.0 % of commits in zerocopy

Focused
RepoCommitsETV
zerocopy3865.1

Most impactful commits

Top 10 by ETV in the last 90 days.