Claude Code v2.1.198 Adds /dataviz Skill for Charts & Dashboards
Claude Code v2.1.198 introduces /dataviz: built-in chart and dashboard guidance plus an executable color palette validator for accessible visuals.
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Token Dashboard: Analyze Claude Code Token Usage & Costs Locally
Local Python tool that converts Claude Code JSONL transcripts into token cost analytics, hotspot visualizations, and session-level usage reports.