Chess Validator
Deterministic legal move validation for AI agents playing chess
Lifecycle
Video
A plugin for Codex and Claude Code that ensures AI-generated chess moves are valid by tracking game state in a local JSON file. It uses the python-chess library to validate SAN or UCI moves, preventing LLM hallucinations during turn-by-turn play.
Details
- Built with
- Unknown
- Posted by
- We haven't verified this person made this build — attribution is our best guess from public sources.
- Discovered
- Discovered onX
- Source date
- Published on X Jul 7, 2026
- Listed
- Added to Dropday 3h ago
- Evidence
- Strong
Functional GitHub repository with clear installation instructions for Codex and Claude Code, complete with Python scripts and plugin manifests.