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DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

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CLAUDE_CODE_SKIP_PLUGIN_MCP_SERVERS_EXCEPT Exemption List

When CLAUDE_CODE_SKIP_PLUGIN_MCP_SERVERS is set to skip plugin MCP servers, the new CLAUDE_CODE_SKIP_PLUGIN_MCP_SERVERS_EXCEPT environment variable lets you exempt specific plugins from that skip.

Usage
export CLAUDE_CODE_SKIP_PLUGIN_MCP_SERVERS=1
export CLAUDE_CODE_SKIP_PLUGIN_MCP_SERVERS_EXCEPT="my-plugin,@org/critical-plugin"
Details
  • Accepts a comma-separated list of plugin names or @owner/repo repository identifiers
  • Exempted plugins are noted in loading messages: "despite CLAUDE_CODE_SKIP_PLUGIN_MCP_SERVERS (exempted via CLAUDE_CODE_SKIP_PLUGIN_MCP_SERVERS_EXCEPT)"
Evidence

(search for "CLAUDE_CODE_SKIP_PLUGIN_MCP_SERVERS_EXCEPT")

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

See this entry in the whole of v2.1.199 →