A small CLI tool that runs every rule in quirks/password-rules.json through 1Password's password-rules-parser crate.
Rules that fail to parse will be flagged.
cargo run path/to/password-rules.json
This tool can also diff two quirk files of equivalent length, checking to make sure each rule for each site is semantically equivalent in both files:
cargo run path/to/password-rules.json --diff-against path/to/other-password-rules.json