boxed / mutmut

Mutation testing system

AmazingAng / old-coder

An old coder's strategy for the agent era: don't read the code — make it run the gauntlet. Evidence-first development skill for coding agents, inspired by Uncle Bob.

sixty-north / cosmic-ray

Mutation testing for Python

unclebob / mutator

Mutation testing for Clojure, Java, Go, TypeScript, Rust, and Python, in the snapshot uml-viewer reads.

sherifican / Agent-FleetOps

Operational tooling & discipline for multi-agent AI engineering fleets — mutation-proven guards, a Textual terminal monitor, generalized skills, and specs. Every check ships with proof it can fail.

TypeLLM / pijev

Permutation Invariant Jev