CLAUDE_CODE_REMOTE_TOOLS_FORWARD
A Claude Code environment variable, read out of the shipped bundle. It has been in the build since v2.1.283, including the newest one read.
With CLAUDE_CODE_REMOTE_TOOLS_FORWARD set to true, tools gain an optional field that runs the call on an attached machine
Not Anthropic's. This is the line from the earliest changelog entry here that named it, v2.1.283.
In the changelogs
9Releases whose published page names CLAUDE_CODE_REMOTE_TOOLS_FORWARD.
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v2.1.307
Two new reserved environment variables for diff copies and found repositories
CLAUDE_CODE_DIFF_COPY_ROOTandCLAUDE_CODE_FOUND_REPOSITORY_GITjoin a protected list of environment variable namesfound in this entry's text
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v2.1.302
New
CLAUDE_CODE_MCP_SERVE_WORKSPACE_ROOTenvironment variableClaude Code now recognises
CLAUDE_CODE_MCP_SERVE_WORKSPACE_ROOTalongside its other variables for running as an MCP serverfound in this entry's text, named in this entry
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v2.1.295
Two new environment variables for auto-updates and compaction
Claude Code now reads
CLAUDE_CODE_AUTOUPDATER_DISABLED_BY_HOSTandCLAUDE_CODE_SLEEP_COMPACTat startupfound in this entry's text
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v2.1.283
Tool calls can be sent to an attached machine when an environment variable is set
With
CLAUDE_CODE_REMOTE_TOOLS_FORWARDset to true, tools gain an optional field that runs the call on an attached machinefound in this entry's text, named in this entry
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v2.1.283
Bash, Edit and Write calls can name a target machine when forwarding is on
With
CLAUDE_CODE_REMOTE_TOOLS_FORWARDset, Bash, Edit and Write keep a field naming which machine should run themfound in this entry's text, named in this entry
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v2.1.283
The name
result_fromis escaped in transcripts when remote tools are forwardedWith
CLAUDE_CODE_REMOTE_TOOLS_FORWARDon, a key named result_from in transcript content is now wrapped in brackets like other reserved namesfound in this entry's text, named in this entry
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v2.1.283
Bash can be pointed at an attached machine when remote tool forwarding is on
With CLAUDE_CODE_REMOTE_TOOLS_FORWARD set, Claude is told it can run Bash commands on your attached computer and not to poll one that went offline
found in this entry's text, named in this entry
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v2.1.283
Auto mode treats results from an attached machine as your private data
Auto mode's safety checker now treats sending results from an attached machine elsewhere as data exfiltration when remote tool forwarding is on
found in this entry's text, named in this entry
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v2.1.283
Remote Control no longer lets hooks and plugins through its inbound guard
Remote Control's inbound guard now always excludes hooks and plugins, and remote tools depend on two environment variables
found in this entry's text
First cited
2The earliest release whose published evidence quoted CLAUDE_CODE_REMOTE_TOOLS_FORWARD was v2.1.283, 25 Sep 2026. That is the oldest release this project wrote about it, so it is a floor on the name's age and not the release that introduced it. It is not a presence reading: which builds carried the name is the table below.
Presence across releases
1Build by build
36One row per release since the first build this name was read out of. Absent means the build was read and the name was not in it, never mined means no bundle for that release was ever archived, and a declared type or a default is only ever what that release's own bundle stated.
Read out of the published npm bundle release by release, and out of Anthropic's own documentation as this site captured it. Nothing on this page is a description anybody here wrote about what the environment variable does. All environment variables.