Agent skills are getting less English: 13% to 16.3% non-English in one quarter

What languages are agent skills written in?

Plicara scanned 1.87 million agent skill files and found the non-English share jumped from 13.0% in Q1 2026 to 16.3% in Q2—much faster than GitHub docs ever diversified. Chinese skills sit at 6.2%, nearly double the Chinese share of GitHub documentation. European languages more than doubled in the same window, while Japanese and Korean slipped. Published numbers disagree because each study sampled a different population: curated marketplaces, domain slices, or English-seeded crawls. The post does not address whether non-English instructions degrade agent performance, so hold that question open.

Why it matters: Plicara scanned 1.87M agent skill files and found non-English share jumped from 13% to 16.3% in one quarter—far faster than GitHub doc diversification. Chinese skills at 6.2% (2x the GitHub baseline) is a concrete stat. Solid data, fresh angle, but Plicara isn't a household na...