How Keel's Ledger System Prevents Duplicate Job Applications From Ambiguous Submissions

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Job application automation tools typically retry failed or timed-out submissions, but unlike fetching a webpage, submitting an application is not idempotent — a retry can create two identical applications for the same role. Keel, a job-application automation system, addresses this by recording every submission intent in a ledger before any network call is made. If a submission ends without a clear server response — due to a timeout, crash, or blank page — the attempt is marked UNKNOWN, a terminal state that is never automatically retried or reclassified. A second attempt for the same role is blocked by the system until a human manually verifies the outcome, such as checking email for an ATS confirmation number. This design trades automation convenience for candidate reputation protection, ensuring no submission is duplicated based on uncertain or missing data.

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ProgrammingDEV Community ·

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