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adk-python — Engineering Performance

18 engineers all time · Apr 2025 – Aug 2026 · built 2026-08-23 · GitHub

Performance snapshot

Today's rolling 90-day reading for adk-python, compared with the start of the series. Pick a window to move that comparison point.

Eff. capacity added

+37.3engineers

15 devs deliver like 52 (3.5x pre-AI)

Avg. perf / dev / mo (ETV)

+183.5%

1.06 → 3.00

Active engineers

+50.0%

10.0 → 15.0

Features

−18.9pp

29.0% → 10.1%

adk-python vs. Google

Per-engineer ETV for adk-python against Google as a whole. Both lines are 90-day rolling averages scaled to a 30-day month, so they share one axis and can be read against each other at any point. Pick a window to zoom the chart to it.

adk-python
3.00ETV / dev / mo
+2.31 (+334.8%) past 90d
Google
2.05ETV / dev / mo
+0.66 (+47.5%) past 90d

Performance over time

ETV stacked by Features / Maintenance / Tests / Docs / Fixes — 90-day moving average, normalized to ETV / month.

Engineering capacity

Effective engineers behind adk-python, in pre-AI terms. Per-engineer ETV divided by the Q1 2025 baseline of 0.86 ETV / dev / mo gives a capacity multiple, and that multiple applied to the engineers active in the trailing 90 days turns it into engineer-equivalents. The line is the real headcount, so the gap between line and area is what the leverage is worth.

Effective engineers
52engineer-equivalents
+37 engineers above real headcount
Real engineers
15engineers
active in the trailing 90 days
Capacity vs pre-AI
3.5x
per engineer, vs 0.86 ETV / dev / mo

Knowledge concentration

How dependent is this repo on a small number of engineers? Higher top-1 share = higher key-person risk.

Top 1
27.1 %
Top 3
53.4 %
Top 5
70.3 %

George Weale owns 27.1 % of commits.

Reports

Written summary of the work completed each month.

No monthly reports available yet.

Top engineers

Most impactful commits

Top 10 by ETV in the all-time window.