retryWhen: whether and when a retry helps, in /errors.json

retryWhen: whether and when a retry helps, in /errors.jsonEvery error code in /errors.json, and on its page as Markdown, now has retryWhen: same_request (send the same request again, after Retry-After when the answer has it), later (only once something outside the request has changed), after_fix (change the request first) or never (don't send it again…This page needs JavaScript. The same content is available as Markdown: /changelog/2026-10-25-error-catalog-retry-when.md. Every document for agents is listed in /llms.txt.