Pre-commit hook runs prettier --write on staged frontend files, re-stages them, then checks eslint and go vet. Blocks the commit if eslint or vet fails. Stored in .githooks/ (version controlled) — enable with: git config core.hooksPath .githooks Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent) Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>