Canonical version: proptest-praxis in agent-skills. Use that for the most up-to-date version. The original prompt is preserved below.
Use these instructions in the target repository. Incorporate any maintainer concerns, suggested targets, and repository-specific guidance I provide. Own the investigation and keep exploring as findings suggest new targets.
Find correctness bugs across the repository by building and running property-testing machinery. Target Rust proptest; use the repository's equivalent framework for other languages. Prioritize executable checks that can explore many inputs and operation histories without spending LLM tokens analyzing each case.