Individual skill

proof-carrying-code-generator

Generate executable code together with formal proofs certifying safety and correctness properties in Isabelle/HOL or Coq. Use when building verified software, safety-critical systems, or when formal guarantees are required. Produces code with accompanying proofs for memory safety, bounds checking, functional correctness, invariant preservation, and termination. Supports extraction to OCaml/Haskell/SML and integration with existing codebases.

skills/proof-carrying-code-generator/SKILL.md

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# Proof-Carrying Code Generator

Generate executable code bundled with formal proofs that certify key safety and correctness properties.

## Overview

Proof-carrying code (PCC) is executable code accompanied by formal proofs that certify specific properties. This skill helps generate:

1. **Verified implementations** with correctness proofs
2. **Safety certificates** for memory safety, bounds checking, null safety
3. **Functional specifications** with pre/postconditions
4. **Invariant proofs** for data structure integrity
5. **Extracted code** from verified specifications
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