Navigara

github.com-google-skia

all · 23 devs · built 2026-06-13

Repository snapshot

Performance · 90d

46.8ETV

−3.0% since Q2 2025

ETV / dev / mo

1.2ETV

12 devs · 30-day window

Last 7 days · per dev

0.8ETV

per developer per week

Work mix

Growth21%· 77.0Maintenance58%· 209.6Fixes20%· 72.6
359.3 ETV all-time2,335 commits23 all-time devsJan 2025 – Jun 2026

Monthly reports

  • Highlights

    • Critical *GPU text rendering pipeline* security vulnerability (b/513948227) was addressed by reconstructing `subRun` bounds from glyphs, successfully relanded in [b8544997] and implemented in [f93ed13d] after an initial revert [c480ba2e].
    • Enhanced *security* by restricting deserialization types in `SkGlyph` and `SkCustomTypeface` ([f1b8ba87]) and removing unused `SkDrawable` serialization from `SkCustomTypeface` ([9da67e21]).
    • Significant *toolchain upgrade* for Windows, updating *MSVC* to 19.51.36244 and *Clang* to 23.0, alongside re-enabling critical *MSVC CI jobs* ([aaa00402]).
    • Introduced a new *agent skill registry* with `core_skills.json`, laying groundwork for automated agent operations with `skia-add-test` and `skia-gn-workflow` skills ([8f47b24d]).
    • Extensive code quality improvements through widespread refactoring, including consistent use of `std::make_unique` across *core modules*, *image codecs*, and *GPU operations* ([d7a4ca22]), and standardizing *fatal error handling* with `SK_ABORT` macro ([bb889fb1]).
    • *Skia Infra* dependency roll enabled *Chrome Browser Benchmarking (CBB) on Android Pixel 10* and enhanced the *performance analysis subsystem* with parallelized anomaly detection ([5a3e4192]).

    Observations

    • The *waste score* surged by 63% (current: 9, 5-month average: 6) compared to the 5-month average, indicating a period of significant rework and bug fixing.
    • Multiple reverts and relands contributed to the high waste, notably for the *Graphite BufferSubAllocator* ([c329e877], [04b084c1], [e7bff78b]) and the critical *GPU text rendering security fix* ([c480ba2e], [b8544997], [f93ed13d]), suggesting challenges in integrating complex changes.
    • The *maintenance score* decreased by 62% (current: 5, 5-month average: 12) compared to the 5-month average, despite a high volume of routine dependency updates.
    • A continuous pattern of *dependency updates* was observed, with numerous rolls for *vulkan-deps* ([659b6796], [32b547c8], [91e53285], [33a1c4f3], [dc01525a], [087c3cc3], [9cddcf3d], [d218592d], [a38708fb]), *ANGLE* ([47155534], [3f20d967], [f71b8b88]), *Dawn* ([df142ba6], [52c2b023], [92f9b68b], [5890b2d6]), and *SwiftShader* ([71c18003], [1ff231ca], [326cbc3a]), indicating ongoing efforts to keep external components current.
    • The *grow score* was 3 this month, a 29% decrease from the 5-month average of 5, suggesting a reduced focus on new feature development in favor of maintenance and addressing existing issues.
    • Several bug fixes were implemented across various components, including a *Graphite* null dereference ([0aee4675]), an *SkScalerContext* MSAN issue ([e202cf3e]), *SkVx::isFinite* on MSVC ([87c0eddb]), and an integer overflow in loops ([5493e4c1]), highlighting active issue resolution.

Performance over time

ETV stacked by Growth, Maintenance and Fixes — 90-day moving average, normalized to ETV / month.

Average performance per developer

ETV per active developer per month — 30-day moving average.

Active developers over time

Unique developers committing each day — 90-day moving average.

Knowledge concentration

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

Top 1
18.3 %
Top 3
42.7 %
Top 5
59.9 %

Kaylee Lubick owns 18.3 % of commits.

Most impactful commits

Top 20 by ETV in the all-time window.