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Every demo here runs real Python in your tab. Pyodide loads, micropip installs the released ctrlrun wheel from PyPI, and the remote is a fake in the same process — nothing you press is sent anywhere, and every refusal you read is the library’s own.

Break a refund

One protected refund under one policy. Change the amount, lose the reply, approve one amount and execute another, and read what refused you.

Medical affairs

A letter to a physician is drafted, reviewed and signed. New evidence lands, the recommendation flips, and the send is refused.
The refund demo is the shortest way to see all five refusals. The medical affairs demo is the same kernel under a different policy, and it exists to answer a question people ask about their own domain: what does this look like when the consequential action is a document rather than a payment. Nothing in CTRLRun knows what a refund is, or what a letter is. Neither page is a substitute for running it yourself. Both take about ten megabytes of download on the first press and cache after that; a laptop offline can run the same thing faster with pip install ctrlrun && ctrlrun demo.

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Next

  • Why — what these demos are demonstrating, in 700 words
  • Get started — the same guarantees around your own function
  • Cookbook — nineteen wirings you can copy

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