--allow-real-servers
A Claude Code CLI flag, read out of the shipped bundle. It has been in the build since v2.1.269, including the newest one read.
claude plugin eval adds --trust-plugin for CI and --allow-real-servers to run real MCP servers without mocks
Not Anthropic's. This is the line from the earliest changelog entry here that named it, v2.1.269.
In the changelogs
3Releases whose published page names --allow-real-servers.
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v2.1.269
New CLI flags for the plugin-eval command: --trust-plugin and --allow-real-servers
claude plugin evaladds--trust-pluginfor CI and--allow-real-serversto run real MCP servers without mocksfound in this entry's text, named in this entry
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v2.1.269
'claude plugin eval' gains --allow-real-servers and concurrency options, plus harness-failure tracking
'claude plugin eval' adds --allow-real-servers and concurrency options, plus separate harness-failure tracking
found in this entry's text, named in this entry
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v2.1.269
Eval mocks: plugins with unenumerable MCP servers now handled explicitly
Eval mocking now gives specific errors when a plugin's MCP servers can't be enumerated for mocking
found in this entry's text
First cited
1The earliest release whose published evidence quoted --allow-real-servers was v2.1.269, 11 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
47One 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 CLI flag does. All CLI flags.