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HomeDocsClaude Code CLI 7 Oct 2026
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Hooks reference changedhooks

Nearest release: v2.1.293, published 9 hours 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 7 Oct 2026 07:24 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 7 Oct 2026 07:37 UTC.

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5757| `DirectoryAdded` | When a working directory is added mid-session via `/add-dir` or the SDK `register_repo_root` control request |
5858| `FileChanged` | When a watched file changes on disk. The `matcher` field specifies which filenames to watch |
5959| `WorktreeCreate` | When a worktree is being created via `--worktree`, `isolation: "worktree"`, or for a background session. Replaces default git behavior |
60| `WorktreeRemove` | When a worktree is being removed at session exit, when a subagent finishes, or when you delete a background session |
60| `WorktreeRemove` | When a worktree that a `WorktreeCreate` hook created is being removed |
6161| `PreCompact` | Before context compaction |
6262| `PostCompact` | After context compaction completes |
6363| `PreModelSwitch` | Before Claude Code applies a model switch that you or a client requested. Can block the switch |
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30273027### WorktreeRemove
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3029Runs when a worktree is being removed. This is the cleanup counterpart to [WorktreeCreate](#worktreecreate). The event fires when:
3029Runs when Claude Code cleans up a worktree that your [`WorktreeCreate`](#worktreecreate) hook created. The event fires when:
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3031* you exit a `--worktree` session and choose to remove it
3032* a subagent with `isolation: "worktree"` finishes
3033* you delete a [background session](/docs/en/agent-view#what-deleting-a-session-removes) whose worktree the hook created
3031* You exit a `--worktree` session and choose to remove the worktree
3032* You delete a [background session](/docs/en/agent-view#what-deleting-a-session-removes) that runs in the worktree
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30353034For git-based worktrees, Claude Code handles cleanup automatically with `git worktree remove`. If you configured a WorktreeCreate hook, pair it with a WorktreeRemove hook to control cleanup of the worktrees it creates:
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