Claumon

New

• Wasted token detection — sessions are flagged when cache efficiency is low (<50% reuse on large sessions) or when lots of tokens are spent without any file edits
• Cache efficiency metric — cache_read / (input + cache_read + cache_create) properly accounts for expensive cache creation costs
• Efficiency column in sessions table with cache reuse % and waste badges
• Billable-only toggle on daily tokens chart to see just the cost-driving tokens (input, output, cache write)
• DB pruning with configurable retention policy
• Keyboard shortcuts for tab switching and memory search
• --open flag to auto-launch browser on start

Improved

• Simplified daily tokens chart (single bar) with stacked billable breakdown on toggle
• Fixed indistinguishable Input/Cache Write legend colors
• Cache reuse % and file edit status shown in session detail panel
• Multiple rounds of tech debt reduction: deduplicated helpers, better error wrapping, mutex for memory cache

Install

Single binary, zero config. Download, run, open http://localhost:3131.

Reads credentials from ~/.claude/.credentials.json or your OS credential store. If missing, session tracking still works — only API usage gauges are unavailable.