Shared repository checks and versioned Git hooks.
Autogenerated from first-line comments. Run scripts/update_agents_file_index.py to refresh.
check-staged.sh: Checks that the staged snapshot has a current AGENTS.md file index.install-git-hooks.sh: Configures this checkout to run the repository's versioned Git hooks.lint_binaries.py: Lint git-tracked files for unexpected binary data and executable files.update_agents_file_index.py: AGENTS.md index generation and first-line summary validation.