Stats cache not updating since March 2, 2026 - 283+ sessions not tracked

Description

The ~/.claude/stats-cache.json file has not been updated since March 2, 2026, despite 283+ active sessions being created since then. All session data is being properly saved to .jsonl files, but the aggregated statistics are not being computed.

Environment

• Claude Code Version: 2.0.64
• OS: macOS (Darwin 25.3.0, ARM64)
• Date Reported: April 10, 2026

Steps to Reproduce

1. Check last update date in ~/.claude/stats-cache.json
2. Compare with recent session files in ~/.claude/projects/
3. Observe gap of over 1 month with no stats updates

Expected Behavior

The stats cache should be continuously updated with:

• Daily activity counts (messages, sessions, tool calls)
• Token usage per model
• Cost calculations
• Session statistics

Actual Behavior

• Last computed date in stats file: "lastComputedDate": "2026-03-01"
• File modification time: March 2, 2026 at 16:43:24
• 283+ session files created since March 2 are not reflected in stats
• All individual session .jsonl files are being saved correctly

Additional Context

All session transcripts are being properly written to ~/.claude/projects/, so the issue appears to be specifically with the stats aggregation process. No visible errors are shown during normal Claude Code usage.

Evidence

$ stat ~/.claude/stats-cache.json
Last modified: Mar  2 16:43:24 2026

$ find ~/.claude/projects -name "*.jsonl" -type f -newermt "2026-03-02" | wc -l
283