# Implements small Python utility functions and data-structure classes (list ops, string parsing, LRU caches, frequency counters). Use when user asks to write a function or class for a well-defined algorithmic task. NOT for full apps or ML.

- **Run ID:** `27ae39d9-d94d-43aa-954b-22f445505db4`
- **Status:** failed
- **Domain:** —
- **Language:** —