What
A host program can start Claude Code with a diskless option, meaning it should write nothing to disk. In that mode Claude Code now skips:
- writing the global config and project config
- creating the fallback storage folder
- backing up a damaged config file
Before, these were written regardless.
Why
Sessions started this way, likely by SDKs or hosted setups, no longer leave config files behind on the machine.
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The writer flagged doubt
What starts Claude Code in diskless mode is not stated.