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HomeDocsClaude Code CLI 25 Oct 2026
One change · claude-code

Customize sessions in self-hosted environments changedself-hosted-environments-configuration

Upstream edited this page at 25 Oct 2026 14:58 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 25 Oct 2026 15:07 UTC.

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780780For the order these sources apply in, see [settings precedence](https://code.claude.com/docs/en/settings.md#settings-precedence).
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782When Anthropic's control plane supplies a session with [Claude Code hooks](https://code.claude.com/docs/en/hooks.md), the runner installs them alongside, not over, your own configuration. Requires Claude Code v2.1.229 or later.
782When Anthropic's control plane supplies a session with [Claude Code hooks](https://code.claude.com/docs/en/hooks.md), the runner installs them alongside, not over, your own configuration. Requires Claude Code v2.1.229 or later; older runners ignore supplied hooks. The supplied hooks run `python3`, so install `python3` in your [runner image](https://code.claude.com/docs/en/self-hosted-environments-deploy.md#build-the-runner-image).
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784784* **Where they land**: the runner writes each supplied hook script to a reserved `hooks/.ccr-launcher/` subdirectory of the session's config directory and registers the scripts in a separate settings file it passes to the session with `--settings`, leaving the seeded `settings.json` and your own scripts at `hooks/<name>` untouched. The runner recreates the reserved subdirectory for each session and doesn't seed host content at `~/.claude/hooks/.ccr-launcher/` into sessions.
785785* **Who authors them**: the control plane populates the scripts from fixed constants in its own deployment, never from per-session or third-party input.
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