New tool agent-starter adds guardrails to protect codebases from AI agent mistakes

Agent-starter is a plugin that installs five enforcement hooks and eight slash commands in one command to prevent common AI coding agent failures like dropped awaits, silent error handling, and destructive git commands. It blocks dangerous operations such as git push --force and recursive rm, and refuses patterns that swallow errors in Python and JavaScript. The tool is designed for Claude Code and can be retrofitted to existing projects with an audit-first approach.