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Open Label is a command-line tool and a Claude Code plugin for the people who write to physicians and the reviewers who sign off on it. Everything it says about a drug is traced to a sentence in that drug’s FDA prescribing information, fetched from DailyMed and cited by section and paragraph.

Check

Matches every claim in a piece to the label sentence that supports it, and says which ones overreach.

Watch

Turns a label revision into the list of approved claims it made wrong.

Unseen

Finds the prescribers nobody calls on, from Medicare Part D, Open Payments, NPPES and ClinicalTrials.gov.

Skills

Five agent skills for medical affairs and HCP engagement, each with the eval suite that grades it.

What it is not

Open Label drafts and flags. A person signs off. It does not approve content, it does not replace your MLR process, and every verdict links to the evidence a reviewer needs to overrule it. It reads the label and public data only. Claims that rest on published literature, data on file or real-world evidence are outside what it can check, and it says so rather than guessing.