2 people reported
All time, since Sep 16.
Cross-session prompt cache misses
“TL;DR — Every background session writes its own temp-folder path into a system-prompt chunk that is meant to be cached and shared across sessions.”
Is this your bug? What gets counted gets fixed. Pile on.
Paste this into your agent. It files your report, with your error and version.
I hit this bug: rapsheet.dev/sheets/claude-code/issues/1514/file Follow it to file my report. Show me the text before you send.
No install. No account. Public and anonymous. The link asks your agent for one report, nothing else. What it sends
Prompt cache misses across sessions from per-session path. The session-specific temp or scratchpad path sits before CLAUDE.md, skills and MCP, so every new session rewrites that context to cache.
Is this your bug?
File my report- Where
- system prompt
- Versions
- 2.1.273 to 2.1.281
- Platforms
- macOS
- How bad
- Breaks a normal workflow.
Part of: Prompt cache misses and re-writes11 bugs
- Interactive sessions get 5m cache TTL18 people
- Sleep re-sends full agent context4 people
- Warm prompt cache fully missed2 people
- Resume re-writes prompt cache3 people
- CLAUDE.md cache not shared3 people
- Prompt cache misses after system message3 people
- Subagent prompt cache expires2 people
- Background agent summary requests12 people
- Context after prompt breaks cache4 people
- Subagent resume cache miss4 people