#privacy
3 articles
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Stop Codex saving conversation history to disk: history.persistence and where credentials are stored
Keep Codex CLI from writing conversation history with history.persistence = "none", cap it with max_bytes, and choose where login credentials live with cli_auth_credentials_store.
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When Claude Code deletes transcripts: the cleanupPeriodDays default and how to change retention
Claude Code stores transcripts in plain text under ~/.claude. What cleanupPeriodDays does (default 30 days, minimum 1), what the sweep deletes and skips, and how to stop writing.
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Is your code used to train Anthropic's models? Claude Code data usage by plan
Whether Claude Code uses your code for model training depends on your plan and settings. How personal and commercial plans differ, and what to check before using it at work.