Self-hosted environments reference changedself-hosted-environments-reference
Nearest release: v2.1.310, published 20 hours before 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 24 Oct 2026 17:31 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 24 Oct 2026 17:37 UTC.
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8080| Flag | Default | Description |
8181| :- | :- | :- |
82| `--hook-concurrency <n>` | `4` | Maximum `spawn-runner` hooks running in parallel. Also caps how many spawn requests are claimed per poll. |
82| `--hook-concurrency <n>` | `4` | Maximum `spawn-runner` hooks running in parallel. Also caps how many spawn requests are claimed per poll. The orchestrator checks for new spawn requests only after every hook it started has finished, so one slow hook delays that orchestrator's next hooks. |
8383| `--hook-timeout <sec>` | `60` | Terminate the hook's process tree after this many seconds. The timeout plus its 5-second kill grace must stay below `--expected-spawn-seconds`; the orchestrator enforces this at startup. |
8484| `--expected-spawn-seconds <sec>` | `120` | Expected p99 time from when the orchestrator receives a spawn request to when the runner registers, including any wait for capacity on your platform. The server enforces a range of 10 to 3600. Sent on every poll as the server-side lease: if no runner registers before it elapses, the session is re-offered with a fresh order ID. All replicas must share this value. |
8585| `--min-idle <n>` | `0` | Keep at least N idle session slots free by spawning standby runners proactively. `0` disables pre-warming. Pair with the runner's `--exit-if-unused-min` so surplus standby runners reclaim themselves. |
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112112| `SELF_HOSTED_RUNNER_MAX_LIFETIME_GRACE_MS` | `900000` | How long the runner waits after a session reaches its `--kill-session-after-min` limit, for a running turn to finish or the release to complete, before it terminates the session |
113113| `SELF_HOSTED_RUNNER_POST_TURN_SETTLE_MS` | `7000` | Cap on how long the runner counts a session as busy for the `--drain-wait-sec` drain after a turn finishes, while the session's process reports the turn's end to Anthropic. `0` or an unusable value falls back to the default, so the hold can't be turned off. Requires Claude Code v2.1.275 or later. |
114114| `SELF_HOSTED_RUNNER_SIGKILL_GRACE_MS` | `30000` | How long the runner waits for the OS to deliver `SIGKILL` to a child stuck in uninterruptible I/O before exiting itself. Floored at `--post-session-hook-timeout-sec` plus 15 seconds, and 30 more when `--push-outcome-on-release` is set, so the effective minimum is 75 seconds at defaults. |
115| `CLAUDE_RUNNER_FETCH_DEPTH` | `50` | Git fetch depth for fresh clones. Set a positive integer, or `full` or `0` for a complete fetch. Repositories already present in the workspace keep their existing depth. |
115| `CLAUDE_RUNNER_FETCH_DEPTH` | `50` | Git fetch depth for fresh clones. Set a positive integer, or `full` or `0` for a complete fetch. For a clone that's already in the workspace, see [Reuse a pre-warmed checkout](https://code.claude.com/docs/en/self-hosted-environments-deploy.md#reuse-a-pre-warmed-checkout). |
116116| `CLAUDE_RUNNER_FETCH_SERVER_PROGRESS_CAP_MS` | `600000` | How long in milliseconds, per attempt, a git fetch may wait for its first data while the git server's own progress numbers keep rising, as when the server prepares the pack for a large repository. `0` or `off` turns the wait off: such a fetch is then cut off after two minutes without data. Any other whole number is clamped to between `120000` and `1800000`, 2 to 30 minutes. Requires Claude Code v2.1.295 or later. |
117117| `CLAUDE_RUNNER_SKIP_GIT_VERIFY` | unset | When `1`, skip the `.git` presence check after a `checkout` hook runs. Set this when your hook materializes a non-git source. |
118118| `FORCE_AUTOUPDATE_PLUGINS` | unset | When `1`, let plugin marketplaces auto-update even though the binary is pinned |
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