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feat(mcp): support env vars in the mcp config file #2241

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@Konippi Konippi commented Jul 7, 2025

Issue #, if available:
#2101

Description of changes:
With this PR, when ${env:VAR_NAME} is set in mcp.json, it can be replaced with an environment variable.

{
    "mcpServers": {
        "tavily-mcp": {
            "command": "npx",
            "args": ["-y", "[email protected]"],
            "env": {
                "TAVILY_API_KEY": "${env:TAVILY_API_KEY}"
            },
            "disabled": false,
            "autoApprove": []
        }
    }
}

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@Konippi Konippi changed the title feat: support env vars in the mcp config file feat(mcp): support env vars in the mcp config file Jul 8, 2025
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