Show HN: AI Code Rating – a 3 character disclosure of how AI was used in a repo

AI Code Rating is a proposed standard in which a project places an ACR.md file in its repo root with a three-character rating: an uppercase letter for the maintainer's expertise (A–E), a digit for the share of code written by AI (0–4), and a lowercase letter for how closely a human checked AI-written code (a–e). The site offers a rating form that generates the badge and ACR.md file, a validator, and a GitHub Action, and it lists adopters including aicoderating.com, DomainMOD, Email Health Check, and HomelabAPI. The spec is at version 0.1, and the roadmap covers publishing the spec, tooling, adoption, and proposing that code hosts display the rating.