CronCreate
A Claude Code tool, read out of the shipped bundle. It has been in the build since v2.1.138, including the newest one read.
Schema declarations across the bundle were shortened with no change to accepted values.
Not Anthropic's. This is the line from the earliest changelog entry here that named it, v2.1.224.
In the changelogs
13Releases whose published page names CronCreate.
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v2.1.299
One-time scheduled task previews now use the one-time timing rule
The next-run preview for scheduled tasks that run only once is now worked out as a one-time job
found in this entry's text
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v2.1.299
Scheduled jobs now show their next run time
CronCreate and CronList now show when each job will next run, and the CronCreate description now mentions a larger per-job delay
found in this entry's text
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v2.1.299
Scheduled jobs are described as possibly running up to half their period late
Claude's description of the scheduling tool now says each job gets a fixed delay of up to 50% of its period, at most 30 minutes
found in this entry's text, named in this entry
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v2.1.299
Reworded description of timing jitter for scheduled tasks
The description of the small random timing offset applied to tasks scheduled with CronCreate was changed
found in this entry's text, named in this entry
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v2.1.299
Scheduled tasks now show when they will run next
CronCreate and CronList now return the next time each scheduled job will run, and CronCreate's description says jobs can run up to 50% late
found in this entry's text
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v2.1.299
Claude's instructions for scheduling tasks with CronCreate were reworded
The description Claude reads for the CronCreate scheduling tool was rewritten in its main system prompt
found in this entry's text, named in this entry
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v2.1.299
CronCreate scheduling instructions reworded in the agent prompt
The CronCreate tool description was rewritten in the prompt Claude Code uses when Claude runs as an agent
found in this entry's text, named in this entry
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v2.1.299
CronCreate scheduling instructions reworded in the compaction prompt
The CronCreate tool description was rewritten in the prompt used when Claude Code compacts a long conversation
found in this entry's text, named in this entry
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v2.1.299
CronCreate scheduling instructions reworded in the /init prompt
The CronCreate tool description was rewritten in the prompt behind the /init command
found in this entry's text, named in this entry
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v2.1.299
CronCreate scheduling instructions reworded in the /security-review prompt
The CronCreate tool description was rewritten in the prompt behind the /security-review command
found in this entry's text, named in this entry
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v2.1.299
CronCreate scheduling instructions reworded in the team onboarding prompt
The CronCreate tool description was rewritten in the prompt used by the team onboarding command
found in this entry's text, named in this entry
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v2.1.224
Schema declarations rewritten to shorter helpers
Schema declarations across the bundle were shortened with no change to accepted values.
found in this entry's text
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v2.1.71
/loop Command (Scheduled Recurring Prompts)
found in this entry's text
First cited
1The earliest release whose published evidence quoted CronCreate was v2.1.224, 7 Aug 2026. That is the oldest release this project wrote about it, so it is a floor on the name's age and not the release that introduced it. It is not a presence reading: which builds carried the name is the table below.
Presence across releases
2Build by build
164One row per release since the first build this name was read out of. Absent means the build was read and the name was not in it, never mined means no bundle for that release was ever archived, and a declared type or a default is only ever what that release's own bundle stated.
Read out of the published npm bundle release by release, and out of Anthropic's own documentation as this site captured it. Nothing on this page is a description anybody here wrote about what the tool does. All tools.