{"name":"CLAUDE_CODE_DISABLE_DIR_SYNC","slug":"claude-code-disable-dir-sync","family":"env","title":"Environment variables","noun":"environment variable","description":"You can turn off background directory syncing by setting CLAUDE_CODE_DISABLE_DIR_SYNC.","description_source":"entry","described_by":{"version":"2.1.229","anchor":"directory-sync-can-be-turned-off-with-an-environment-variabl"},"presence":{"first_seen":"2.1.229","removed_in":"2.1.285","in_current_build":false,"newest_mined":"2.1.308","builds":46,"mined_builds":149,"first_cited":null},"aliases":[],"entries":[{"version":"2.1.285","anchor":"directory-sync-dir-sync-feature-removed","heading":"Directory sync for cloud sessions and its environment variables removed","line":"The directory-sync machinery for cloud sessions is gone, and its `CLAUDE_CODE_DIR_SYNC_*` and `CLAUDE_CODE_DISABLE_DIR_SYNC` variables no longer do anything","released_at":"2026-09-29 17:32:09","reason":"found in this entry's text"},{"version":"2.1.248","anchor":"directory-sync-loads-a-mid-turn-hook-from-a-separate-build-c","heading":"Directory sync loads a mid-turn hook from a separate build chunk","line":"Directory sync loads an extra chunk to register a mid-turn hook, logging failures.","released_at":"2026-08-27 20:35:36","reason":"found in this entry's text"},{"version":"2.1.239","anchor":"cloud-file-sync-tracks-deletions-and-tells-you-plainly-when-","heading":"Cloud file sync tracks deletions and tells you plainly when it recovers","line":"Cloud file sync now tracks deletions and tells you plainly when it recovers.","released_at":"2026-08-21 17:18:54","reason":"found in this entry's text"},{"version":"2.1.239","anchor":"directory-sync-anchoring-can-be-switched-off-plus-seven-dir-","heading":"Directory-sync anchoring can be switched off, plus seven dir-sync variables now stripped from child processes","line":"CLAUDE_CODE_DIR_SYNC_DISABLE_ANCHORING turns off path anchoring, and seven sync variables are now stripped from child processes.","released_at":"2026-08-21 17:18:54","reason":"found in this entry's text"},{"version":"2.1.239","anchor":"sync-and-hook-forwarding-switches-now-survive-into-remote-se","heading":"Sync and hook-forwarding switches now survive into remote sessions","line":"Seven more environment variables you export locally now carry into remote and worker processes.","released_at":"2026-08-21 17:18:54","reason":"found in this entry's text"},{"version":"2.1.238","anchor":"turns-in-cloud-sessions-now-wait-for-a-pre-turn-check-which-","heading":"Turns in cloud sessions now wait for a pre-turn check, which cannot yet refuse","line":"Headless and SDK turns now wait on a pre-turn check that currently always says go ahead.","released_at":"2026-08-20 18:01:54","reason":"found in this entry's text"},{"version":"2.1.229","anchor":"directory-sync-can-be-turned-off-with-an-environment-variabl","heading":"Directory sync can be turned off with an environment variable","line":"You can turn off background directory syncing by setting CLAUDE_CODE_DISABLE_DIR_SYNC.","released_at":"2026-08-12 19:28:48","reason":"named in this entry, found in this entry's text"}],"entries_total":7,"docs":[],"docs_total":0,"gates":[],"related":[{"name":"CLAUDE_CODE_DISABLE_1M_CONTEXT","slug":"claude-code-disable-1m-context","description":"Set to `1` to disable [1M context window](\/docs\/en\/model-config#extended-context) support. When set, 1M model variants are unavailable in the model picker, and Claude Code holds sessions on models with a native 1M window, such as [Sonnet 5.5](\/docs\/en\/model-config#sonnet-5-5-and-sonnet-5-context-window) and the Fable models, to a 200K window; see [Extended context](\/docs\/en\/model-config#extended-context) for how the hold is enforced. Useful for enterprise environments with compliance requirements. For its role in correcting the window for an unrecognized `[1m]` model ID, see [Correct the window for a gateway or custom model ID](\/docs\/en\/model-config#correct-the-window-for-a-gateway-or-custom-model-id)"},{"name":"CLAUDE_CODE_DISABLE_ADAPTIVE_THINKING","slug":"claude-code-disable-adaptive-thinking","description":"Set to `1` to disable [adaptive reasoning](\/docs\/en\/model-config#adjust-effort-level) on Opus 4.6 and Sonnet 4.6 and fall back to the fixed thinking budget controlled by `MAX_THINKING_TOKENS`. Has no effect on [Fable models](\/docs\/en\/model-config#extended-thinking), Sonnet 5 and later, or Opus 4.7 and later, which always use adaptive reasoning"},{"name":"CLAUDE_CODE_DISABLE_ADMIN_ENV_UNION","slug":"claude-code-disable-admin-env-union","description":"Set to `1` to stop Claude Code from merging [managed settings](\/docs\/en\/managed-settings#precedence-within-the-managed-tier) `env` blocks per key across admin sources, so only the highest-priority source's whole `env` block applies, as before v2.1.223. Set it in the environment that launches Claude Code, since Claude Code ignores a copy delivered through a settings `env` block. Requires Claude Code v2.1.223 or later"},{"name":"CLAUDE_CODE_DISABLE_ADVISOR_TOOL","slug":"claude-code-disable-advisor-tool","description":"Set to `1` to disable the [advisor tool](\/docs\/en\/advisor). The `\/advisor` command becomes unavailable, any configured `advisorModel` is ignored, and the `--advisor` flag is accepted but has no effect, so existing scripts that pass it continue to work without errors"},{"name":"CLAUDE_CODE_DISABLE_AGENT_VIEW","slug":"claude-code-disable-agent-view","description":"Set to `1` to turn off [background agents and agent view](\/docs\/en\/agent-view): `claude agents`, `--bg`, `\/background`, and the on-demand supervisor. Equivalent to the [`disableAgentView`](\/docs\/en\/settings-reference#disableagentview) setting"},{"name":"CLAUDE_CODE_DISABLE_AGENTS_FLEET","slug":"claude-code-disable-agents-fleet","description":"A true value (`1`, `true`, `yes`, `on`) turns off the background-agents fleet, the same as the `disableBackgroundAgents` setting: the fleet gate that otherwise follows `tengu_slate_meadow` returns false, so `claude daemon` subcommands that need the gate stop with `'daemon' is not enabled.`, the built-in Claude agent is left out of the built-in agent list, and `claude daemon run` exits with `claude daemon: background agents disabled (ZDR\/3P\/opt-out)`."},{"name":"CLAUDE_CODE_DISABLE_ALTERNATE_SCREEN","slug":"claude-code-disable-alternate-screen","description":"Set to `1` to disable [fullscreen rendering](\/docs\/en\/fullscreen) and use the classic main-screen renderer. The conversation stays in your terminal's native scrollback so `Cmd+f` and tmux copy mode work as usual. Takes precedence over `CLAUDE_CODE_NO_FLICKER` and the [`tui`](\/docs\/en\/settings-reference#tui) setting. You can also switch with `\/tui default`. Does not apply to background sessions opened from [agent view](\/docs\/en\/agent-view), which always use fullscreen rendering"},{"name":"CLAUDE_CODE_DISABLE_ARTIFACT","slug":"claude-code-disable-artifact","description":"Set to `1` to turn off the [Artifact](\/docs\/en\/artifacts) tool, which publishes session output as a private web page on claude.ai. Once you set it, no settings file turns the tool back on. To turn the tool off from a settings file instead, set [`enableArtifact`](\/docs\/en\/settings-reference#enableartifact) to `false`; the deprecated [`disableArtifact`](\/docs\/en\/settings-reference#disableartifact) key also turns it off"},{"name":"CLAUDE_CODE_DISABLE_ATTACHMENTS","slug":"claude-code-disable-attachments","description":"Set to `1` to disable attachment processing. File mentions with `@` syntax are sent as plain text instead of being expanded into file content"},{"name":"CLAUDE_CODE_DISABLE_ATTRIBUTION_BASELINE_REUSE","slug":"claude-code-disable-attribution-baseline-reuse","description":null}],"url":"https:\/\/changelogs.core-directive.com\/reference\/env\/claude-code-disable-dir-sync","family_url":"https:\/\/changelogs.core-directive.com\/reference\/env.json"}