Cloudflare Worker cron triggers cap at five per account

Cloudflare caps Worker [triggers] crons at 5 per account, not per Worker. Shared accounts fill the slots fast. Deploy error is 10072 — You have exceeded the limit of 5 cron triggers.

Omitting the triggers block does not clear an existing cron. Emit "triggers": { "crons": [] } (or PUT [] to the schedules API) to release a slot. Workflow binding schedules are a different product and paid-only (tech-workflows-binding-schedules). Durable Object alarm() is another Free-safe scheduler and does not use a cron slot (tech-durable-object-alarms-not-cron).