Granular Token Cost Attribution Missing in Claude Code: Implementing Per-Tool-Call Tracking for Optimization and Debugging

Introduction & Problem Statement In the rapidly evolving landscape of AI development, Claude Code has emerged as a powerful tool for automating workflows and integrating AI capabilities. However, a critical gap exists: Claude Code does not provide granular token cost attribution per tool call. This omission creates a blind spot for developers and organizations, making it nearly impossible to optimize costs, debug inefficiencies, or scale operations effectively. The problem isn’t just theoretical—it’s mechanical...