vapor-chamber API reference - v1.16.0
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    Variable MCP_SERVER_VERSIONConst

    MCP_SERVER_VERSION: "1.16.0" = '1.16.0'

    Version reported by the MCP initialize handshake.

    Kept in sync with package.json by tests/mcp.test.ts, not by discipline — it sat at a hardcoded '1.7.0' for four releases, so every handshake advertised a version that had not existed for months. A failing test at release time is the cheapest possible checklist.