The Agent Skills Directory

[COMMAND_EXECUTION]: The skill utilizes standard Lean 4 toolchain commands such as lake build, lake lean, lake test, and lake lint. These are standard tools for interacting with Lean 4 projects and are used here to verify formal invariants within the repository.
[EXTERNAL_DOWNLOADS]: The skill acknowledges the potential need to fetch dependencies or install toolchains. It includes a specific instruction to request approval through the current harness rather than performing these actions silently, which aligns with security best practices for handling external resources.

lean4-principle-check