Persist usage data to disk for busy-mode display#20
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Each Prism status line render is a new process with an empty in-memory cache. Usage data was only fetched when idle, so during active Claude use it fell back to showing cost instead of usage limits. This adds disk-based caching so the last-known usage data persists across process invocations. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Reject cached usage data older than 5 minutes to prevent showing stale limits after resets. Also improve test assertions and cleanup. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Summary
$0.35) instead of usage limits (3h20m:55% 7d:6%)prism-usage-cachein temp dir) following the same pattern asUpdatePlugin, so last-known usage data persists across process invocationsTest plan
loadUsageCache/saveUsageCacheround-tripgo test ./...)🤖 Generated with Claude Code