Code bloat detection 1

A plugin that helps AI coding agents write minimal, maintainable code. Ponytail is an MIT-licensed plugin and ruleset for AI coding agents that encourages them to write the least code necessary. It checks whether a requested change is needed, already exists in the codebase, or can be handled by the standard library, a native platform feature, or an already-installed dependency before generating custom code. Ponytail promotes simpler implementations, fewer dependencies, shorter diffs, and reduced maintenance while preserving validation, error handling, security, and accessibility.