Ponytail: Lazy Senior Engineer Skill

Ponytail is a set of rules for AI coding agents that prioritizes simplicity and minimal code over complex implementations. It encourages using standard libraries and native features to reduce technical debt and maintenance overhead.
Why it matters
As AI coding assistants become standard, establishing best practices for code quality and maintainability is essential to prevent bloated, unmanageable codebases.
He says nothing. He writes one line. It works.
// A ruleset that makes your AI coding agent write the least code that works — like a senior dev who's been paged at 3am one too many times.
- class CacheManager: - def __init__(self, ttl, maxsize): - self._store, self._lock = {}, Lock() - # ...44 more lines you maintain forever + @lru_cache(maxsize=1000) + def fetch(...): ... // same behavior. 48 fewer lines. zero bugs in code that no longer exists.
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