Skip to content

fix: handle invalid cron expressions in alarm handler #779

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Closed
HueCodes wants to merge 2 commits into from
Closed

fix: handle invalid cron expressions in alarm handler #779

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
1002fe8
fix: handle invalid cron expressions in alarm handler
HueCodes Jan 14, 2026
6b2d554
fix: validate cron expressions at input
HueCodes Jan 15, 2026
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
5 changes: 5 additions & 0 deletions .changeset/validate-cron-input.md
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,5 @@
---
"agents": patch
---

Validate cron expressions when scheduling tasks
5 changes: 5 additions & 0 deletions packages/agents/src/index.ts
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -1105,6 +1105,11 @@ export class Agent<
return schedule;
}
if (typeof when === "string") {
try {
parseCronExpression(when);
} catch {
throw new Error(`Invalid cron expression: ${when}`);
}
const nextExecutionTime = getNextCronTime(when);
const timestamp = Math.floor(nextExecutionTime.getTime() / 1000);

Expand Down
Loading