{"version":"2.1.290","anchor":"sandbox-file-act-judged-for-thin-client-post-cloud-session","canonical_anchor":"sandbox-file-act-judged-for-thin-client-post-cloud-session","heading":"Sandbox can hold back Claude Code's own file creates and deletes","tier":"notice","area":"Sandbox","scope":"individual","heads_up":false,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.290\/e\/sandbox-file-act-judged-for-thin-client-post-cloud-session","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.290","markdown":"### Sandbox can hold back Claude Code's own file creates and deletes\n\nA new sandbox check can withhold files Claude Code itself creates or deletes outside the folders the sandbox allows writing to\n\n**Unclear.** It is not clear which parts of Claude Code use this check or when it applies.\n\n**What**\n\nThe sandbox is a fenced-off area that limits which folders Claude Code is allowed to write to. A new check can now withhold Claude Code's own file creations and deletions when they fall outside those allowed folders.\n\n**Why**\n\nThis is new sandbox behaviour. In practice, a file Claude Code tries to create or delete outside the permitted folders may not go through.\n\n- Area: Sandbox\n- Tier: You'll notice\n- Useful: 2\/5\n- Signal: 3\/5\n- Scope: individual\n- Heads-up: no"}