Common workflows changedcommon-workflows
Nearest release: v2.1.307, published under an hour after upstream edited the page. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.
Upstream edited this page at 21 Oct 2026 20:28 UTC, give or take a minute or two: the time comes from Anthropic’s own sitemap rather than from a commit. This site recorded the change at 21 Oct 2026 20:37 UTC.
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376376To stop `@` references from including file contents and directory listings in your message, set [`CLAUDE_CODE_DISABLE_FILE_MENTIONS=1`](/docs/en/env-vars#variables) in your shell or user settings. Claude then receives the paths you referenced with a note to read them using its file tools. The variable requires Claude Code v2.1.299 or later, and Claude Code ignores it in project and local settings.
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378Your [`PreToolUse` hooks](/docs/en/hooks#pretooluse) don't run when Claude Code includes a file you reference with `@`, because it makes no tool call. If you rely on those hooks to control what Claude reads, block specific paths or stop `@` references from including files:
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380* **Block specific paths**: add a [`Read` deny rule](/docs/en/permissions#read-and-edit) for them. Claude Code doesn't include a file that the rule matches.
381* **Stop `@` references from including files**: set `CLAUDE_CODE_DISABLE_FILE_MENTIONS=1`, which stops `@` file and directory references in your messages from including content, even for paths your hooks don't check. Your matching hooks then run before Claude opens a referenced path with a tool such as `Read`.
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378383***
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380385### Run Claude on a schedule
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