GitHub Next introduces the PDD Kit and a login handling example

On November 4, 2026, GitHub Next introduced the Proof-Driven Development Kit (PDD Kit), developed jointly with Microsoft Research. The tool uses conversation to organize requirements into machine-verifiable specifications, then uses mathematical proofs to confirm that code generated by AI agents satisfies the specifications. It is currently a research prototype for Rust code, available only as a limited research preview, and runs in Chopin, a web application developed by GitHub Next. The original text uses the login handling of Pet Store as an example, explaining that the specification ultimately contains 8 conditions, which are checked by Verus proofs, while library handling outside the scope of the proofs is confirmed through testing. Materials subsequently released jointly by Microsoft Research with GitHub Next and the RiSE team state that the team used the PDD Kit in the Chopin environment to verify the login logic of the Rust full-stack application Pet Store; of roughly 5,000 lines of Rust code, developers reviewed only the intent documents and specifications and did not read the generated code line by line. The PDD Kit currently supports only Rust, and 6 points in the login logic are listed as trusted boundaries, covered by testing rather than proofs.

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1. Nov 4· 2 reports

   GitHub Next introduces PDD Kit and a login handling application example

   Source:Microsoft Research