Excellent98.5%

Valid tool schemas in September 2026

What the Valid tool schemas in September 2026 is, and how it is measured

Measured on 7,237 pages, 4.4% of which carried the agentic category, with a confidence margin of ±0.62 pp.

= −0.1 pp
Valid tool schemas in September 2026 over 3 months

96.2%98.5%

98.9%95.9%Valid tool schemas · July: 96.2%Valid tool schemas · August: 98.7%Valid tool schemas · September: 98.5%Valid tool schemasJulyAugustSeptember
Valid tool schemas, July 2026 to September 2026, one measurement a month. The last step was inside the margin, so it is a tie.

What this measures

Who moved

How to read these figures

Every figure here comes from a sample, not from counting every site — so it carries a margin: how much it could move if we had happened to sample different pages. A figure measured on a thousand pages has a wide margin; one measured on a hundred thousand has a narrow one. It matters for one thing: two figures that differ by less than the wider of their margins are not one above the other, they are tied. That is why nothing here has a position number.