DietrichGebert/ponytail

Ponytail is a developer tool that guides AI agents toward minimal, pragmatic code solutions by instilling a "lazy senior developer" philosophy.

The tool addresses the problem of AI agents over-engineering solutions by writing unnecessary boilerplate, installing unneeded dependencies, and building features beyond what was requested. Ponytail works by injecting prompting patterns and skills that encourage agents to favor simplicity, reuse existing code, and solve problems with the fewest lines possible. Rather than replacing agent capabilities, it shapes their decision-making to prefer one-liner fixes over elaborate implementations.

Developers should adopt this tool if they use Claude Code, Cursor, or other AI agents for coding tasks and find themselves cleaning up over-built solutions. It suits teams that value pragmatism and want to reduce token costs and execution time while maintaining code safety. The tool works across multiple agent platforms and integrates as a skill or prompt pattern without requiring architectural changes to existing workflows.

The project shows consistent engagement with real-world testing against production codebases rather than synthetic benchmarks. Development activity includes active maintenance of documentation across multiple languages and ongoing refinement of the core prompting strategies based on measured outcomes from actual agent sessions.