A CLI tool that reads Claude Code and Codex CLI session logs, quantifies token spend burned on idle turns, and shows per-session cost breakdowns devs can actually act on

Claude Code and Codex CLI ship with no native cross-session cost visibility. Devs spending $1,400+/week have zero built-in way to see where that money went. A community ecosystem filled the gap fast: Claude-Code-Usage-Monitor hit 8.2k GitHub stars and CodeBurn's HN launch (245 pts, 135 comments) found that 56% of spend goes to idle turns where the agent is waiting, retrying, or stalled. The existing tools surface totals but stop there. This CLI parses the raw session logs from both tools, classifies each turn as productive vs idle, ranks the sessions and workflows burning the most waste, and outputs a daily cost breakdown devs can use to cut their bill without changing their workflow.

Demand Breakdown

GitHub

8,623

519

Social Proof 3 sources

Claude-Code-Usage-Monitor: Real-time Claude Code usage monitor with predictions and warnings

@Maciek-roboblog · 2025-07-01

8,623 HN

Show HN: Claude Code Usage Monitor real-time tracker to dodge usage cut-offs

2025-07-01

380 HN

Show HN: CodeBurn Analyze Claude Code token usage by task

2026-04-17

139

Gap Assessment

CompetitiveMultiple tools exist but differentiation opportunities remain

3 tools exist (Claude-Code-Usage-Monitor, CodeBurn, ccusage) but gaps remain: No idle-turn classification. No cross-session history. No per-workflow breakdown. No Codex CLI support. Shows you the number but not what drove it or what to cut.; Single-session only. No real-time view. No daily/weekly trend. No actionable per-turn waste ranking. No Codex CLI support..

Features2 agent-ready prompts

Session log parser that reads Claude Code and Codex CLI JSONL logs, classifies each turn as productive or idle, and outputs per-session token cost with idle-turn breakdown

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Daily cost digest generator that ranks sessions and workflows by idle-turn waste and emails or prints a human-readable report devs can act on

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Competitive LandscapeFREE

Product	Does	Missing
Claude-Code-Usage-Monitor	Real-time token usage display for Claude Code with cutoff predictions and color-coded warnings. Shows running totals per session.	No idle-turn classification. No cross-session history. No per-workflow breakdown. No Codex CLI support. Shows you the number but not what drove it or what to cut.
CodeBurn	Post-session analysis of Claude Code token spend by task. Identified the 56% idle-turn finding.	Single-session only. No real-time view. No daily/weekly trend. No actionable per-turn waste ranking. No Codex CLI support.
ccusage	CLI that reads Claude Code local logs and displays aggregated token counts and cost estimates.	No idle vs productive turn classification. No waste ranking. No cross-tool support (Codex). Totals only, no actionable breakdown.