feat: add Claude usage status bar #22
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Display session cost, context usage percentage, and rate limits in the chat toolbar. - Add Rust backend module (claude_usage/) for OAuth token retrieval and API calls - Fetch usage limits from Anthropic API with 60-second cache - Calculate session usage from token metadata (cost, context %) - Add ClaudeUsageStatusBar component with tooltips - Add show_usage_status_bar preference with toggle in Settings - Show 5-hour limit (L:) and 7-day limit (W:) when OAuth credentials available
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Some preview of the feature: |
Context percentage should reflect current conversation size, not cumulative tokens. - Use last run's input_tokens + cache_read for context % - Keep summing all runs for cost calculation
- Add hook installer that automatically configures Claude Code settings - Hook captures real context window size from Claude Code's Stop event - Fix session ID mismatch: use claude_session_id from metadata - Add "Accurate context tracking" toggle in Settings > Defaults
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Summary
show_usage_status_barpreference with toggle in SettingsFeatures
Context Tracking Hook
The context percentage cannot be accurately calculated from token metadata alone (which stores per-API-call data). To get the real context window usage, this PR adds an optional hook that integrates with Claude Code:
How it works
~/.claude/settings.jsonthat runs on Claude Code'sStopevent~/.jean/context-data/{session_id}.jsonHook data captured
contextWindowTokens- Real context window sizecontextWindowLimit- Model's context limit (200K)totalCost- Session cost from Claude CodemodelId- Model being usedWithout the hook
Falls back to calculating context from token metadata, which may be less accurate.
Technical Details
~/.claude/.credentials.jsonhttps://api.anthropic.com/api/oauth/usagewith 60-second cacheTest plan