drupflare/worker - v1.0.4
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    Variable CROSSING_NAMESConst

    CROSSING_NAMES: readonly [
        "cfwSqlExec",
        "cfwSqlTxn",
        "cfwZlib",
        "cfwLog",
        "cfwStats",
        "cfwServeStats",
        "cfwFetch",
        "cfwHttpCacheGet",
        "cfwQueueFetch",
        "cfwMail",
        "cfwImageUrl",
        "cfwFileRead",
        "cfwFileWrite",
        "cfwFileDelete",
        "cfwFileList",
        "cfwFileStat",
        "cfwFilePublicBase",
        "cfwFileRename",
        "cfwOidcClaims",
        "cfwTcp",
        "cfwSettings",
        "cfwModules",
    ] = ...

    Every capability name the host installs on the PHP module.

    A list, not a prefix scan: cfwCanSuspend is a boolean the service provider probes, and wrapping it would hand PHP a callable where it expects a flag (reads true, installs a dead handler).