What problem does it solve?
This Skill provides precise tracking and cost estimation for token usage so users can understand billing, optimize prompts, and budget for API usage across Claude models.
Core Features & Use Cases
- Per-request Accounting: Estimates input, output, and total tokens for each request and provides an estimated cost with the chosen model.
- Session Summaries & Budgets: Aggregates session totals, average cost per request, and monthly/annual budget estimates for forecasting.
- Cost Comparison & Context Tracking: Compares costs across models, applies cache discounts, and monitors context window consumption with warnings for compaction.
- Use Case: A developer or freelancer can enable tracking to append token and cost blocks after responses, run cost comparisons when evaluating model changes, and estimate monthly spend for a given workload.
Quick Start
Ask the token-tracker to "show token usage and estimated cost for the last request using Claude Sonnet 4.6".