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HomeDocsClaude Documentation 23 Oct 2026
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Code in Claude Desktop on 3P changedthird-party/claude-desktop/code

Nearest release: v2.1.310, published 4 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 23 Oct 2026 16:59 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 23 Oct 2026 17:07 UTC.

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4343| `coworkEgressAllowedHosts` | A network sandbox restricted to your hosts, `allowManagedDomainsOnly`, and `WebFetch` allow rules for the same hosts, which [don't block other hosts](/docs/third-party/claude-desktop/web-tools.md#how-the-egress-allowlist-applies-in-code-sessions). Claude Code's own inference and telemetry connections run outside the sandbox. A shell command or [HTTP hook](https://code.claude.com/docs/en/hooks#http-hook-fields) that calls your inference provider, `api.anthropic.com`, or your OTLP collector needs that host in the list. |
4444| `allowedWorkspaceFolders` | A filesystem sandbox for shell commands, which can then create or change files only inside your allowed roots and the session's temporary locations. The sandbox does not restrict which files those commands read unless you also set `blockReadsOutsideWorkingDirectories`. The roots are also passed as `additionalDirectories` at launch, which is always applied independent of managed-settings precedence, and the app keeps Claude's file tools inside the roots. The app also refuses to start a Code session outside an allowed root. |
4545| `blockReadsOutsideWorkingDirectories` | Claude Code's `permissions.blockReadsOutsideWorkingDirectories` for Code sessions. Claude's file tools refuse to read outside the working directories (the session's folder plus your allowed roots, if any) in every permission mode. Where the sandbox from `allowedWorkspaceFolders` or `coworkEgressAllowedHosts` is running, it also hides the user's home directory and similar locations, such as other users' home folders and mounted volumes, from shell commands, so a sandboxed command that reads there fails without a prompt. Without a running sandbox, a shell command that reads outside the working directories, or that Claude Code cannot analyze, asks the user for approval first, even in bypass permissions mode. The key requires Claude Desktop 1.46388.1 or later. The block takes effect only in sessions that run Claude Code v2.1.257 or later; if the app cannot install its current Claude Code engine and a session runs one older than v2.1.257 that is still on the device, that session runs without the block and the app logs a warning. |
46| `managedMcpServers` | `strictPluginOnlyCustomization` set to `["mcp"]`, so the Code session does not load MCP servers that users define on Claude Code's side (`~/.claude.json`, a project's `.mcp.json`, or `claude mcp add`); your managed servers, which the app connects and supplies to the session itself, and MCP servers bundled in plugins still load. When [`isLocalDevMcpEnabled`](/docs/third-party/claude-desktop/configuration#islocaldevmcpenabled) is `false`, the app also sets an `allowedMcpServers` list that admits only remote servers, with `allowManagedMcpServersOnly`, so local (stdio) servers bundled in plugins from marketplaces or that users install themselves are refused, while those plugins' remote servers still connect. Per-tool `toolPolicy` values on each server are emitted as `permissions.deny` (for `blocked`) or `permissions.ask` (for `ask`) rules against the corresponding `mcp__<server>__<tool>` names. |
46| `managedMcpServers` | `strictPluginOnlyCustomization` set to `["mcp"]`, so the Code session does not load MCP servers that users define on Claude Code's side (`~/.claude.json`, a project's `.mcp.json`, or `claude mcp add`); your managed servers, which the app connects and supplies to the session itself, and MCP servers bundled in plugins still load. Per-tool `toolPolicy` values on each server are emitted as `permissions.deny` (for `blocked`) or `permissions.ask` (for `ask`) rules against the corresponding `mcp__<server>__<tool>` names. |
47| `isLocalDevMcpEnabled` | When `false` and `allowedPluginMcpServers` is unset, an `allowedMcpServers` list that admits only remote servers, with `allowManagedMcpServersOnly`, whether or not `managedMcpServers` is set. The Code session refuses local (stdio) servers bundled in plugins from marketplaces or that users install themselves, and local servers that users define on Claude Code's side (`~/.claude.json`, a project's `.mcp.json`, or `claude mcp add`). Those plugins' remote servers still connect. Your managed servers and the servers from the organization plugins directory, which the app connects and supplies to the session itself, aren't subject to the list. |
4748| `allowedPluginMcpServers` | `strictPluginOnlyCustomization` set to `["mcp"]` together with an `allowedMcpServers` list holding your entries and `allowManagedMcpServersOnly`, whether or not `managedMcpServers` is set. MCP servers bundled in plugins from marketplaces, or in plugins users install themselves, connect only when their URL matches an entry; no such plugin's local (stdio) server is admitted, and an empty list admits none. Your managed servers and the servers from the organization plugins directory still load. |
4849| `deniedPluginMcpServers` | The app sets a `deniedMcpServers` list holding your entries, whether or not `allowedPluginMcpServers` is set. When the key is unset or its list is empty, the app sets no `deniedMcpServers` list. When the value is not a list, or holds an entry that the app can't read, the app sets a list whose one entry is `*`, a pattern that matches every URL. See the [`deniedPluginMcpServers` reference](/docs/third-party/claude-desktop/configuration#deniedpluginmcpservers) for what the setting does and what an entry matches. |
4950| `userPluginMarketplacesEnabled` | When `false`, a `strictKnownMarketplaces` allowlist. See [Controlling user extensions](/docs/third-party/claude-desktop/extensions.md#controlling-user-extensions) for what the key does. |
5051| `builtinToolPolicy`, argument-scoped rules such as `Bash(curl *)` | A `permissions.ask` rule for each rule set to `"ask"`. |
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52The network and filesystem sandboxes apply on macOS, and on Linux devices and [SSH hosts](/docs/third-party/claude-desktop/ssh-remote-sessions.md#managed-configuration-on-the-remote-host) with Claude Code's [sandbox dependencies](https://code.claude.com/docs/en/sandboxing) installed. Claude Code doesn't sandbox shell commands on Windows devices, and on a Linux device or SSH host without the dependencies commands run unsandboxed. In those cases, and when `coworkEgressAllowedHosts` contains `*` and `allowedWorkspaceFolders` is unset, `blockReadsOutsideWorkingDirectories` still confines Claude's file tools but can only ask the user to approve shell commands that read outside the working directories or that Claude Code can't verify. For what a remote session shows, see [Sandbox status on the remote host](/docs/third-party/claude-desktop/ssh-remote-sessions.md#sandbox-status-on-the-remote-host).
53The network and filesystem sandboxes apply on macOS, and on Linux devices and [SSH hosts](/docs/third-party/claude-desktop/ssh-remote-sessions.md#managed-configuration-on-the-remote-host) with Claude Code's [sandbox dependencies](https://code.claude.com/docs/en/sandboxing) installed. Claude Code doesn't sandbox shell commands on Windows devices, and on a Linux device or SSH host without the dependencies commands run unsandboxed. When `coworkEgressAllowedHosts` contains `*` and `allowedWorkspaceFolders` is unset, Claude Desktop turns on neither sandbox. In all of these cases, `blockReadsOutsideWorkingDirectories` still confines Claude's file tools but can only ask the user to approve shell commands that read outside the working directories or that Claude Code can't verify. For what a remote session shows, see [Sandbox status on the remote host](/docs/third-party/claude-desktop/ssh-remote-sessions.md#sandbox-status-on-the-remote-host).
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5455> [!WARNING]
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