Extract the tool description/category metadata into tool-description.ts and move argument normalization plus validation into tool-argument-preparation.ts. This keeps createDelegateTask focused on orchestration while preserving behavior and bringing tools.ts under the module LOC rule.
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
YeonGyu-Kim