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cron-and-intervals

Skill

Use when building a val that runs on a schedule — periodic jobs, recurring tasks, polling, cron jobs, monitoring, alerting. Covers the interval handler signature, cron expressions, the UTC timezone constraint, and the `lastRunAt` pattern for detecting new items since the previous run.

0Backend

Install

git clone https://github.com/val-town/plugins.git ~/.claude/skills/cron-and-intervals

What is cron-and-intervals?

Use when building a val that runs on a schedule — periodic jobs, recurring tasks, polling, cron jobs, monitoring, alerting. Covers the interval handler signature, cron expressions, the UTC timezone constraint, and the `lastRunAt` pattern for detecting new items since the previous run.

What this can do

Capabilities declared in this component's own frontmatter — not inferred.

Inherit all session tools

Declares no tool restrictions — inherits every session tool

~71 tokens of context used while enabled, before you invoke anything

Documentation

README · ~1 min read

Cron / Interval Vals

Interval vals (fileType: "interval") run on a recurring schedule defined by a cron expression. Use them for polling external APIs, sending reminders, running cleanups, generating reports, or any work that should happen on a clock rather than in response to a request.

Basic handler

// Learn more: https://docs.val.town/vals/cron/
export default async function (interval: Interval) {
  // interval.lastRunAt: Date | undefined
  console.log(interval);
}

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