/**
 * Isolate-lane eligibility of a compiled connector bundle.
 *
 * A bundle built with `ISOLATE_LANE_BUILD_OPTIONS` inlines every dependency
 * except Node builtins, which esbuild leaves as bare `require()` calls because
 * `platform: 'node'` marks them external. An isolate has no module loader, so
 * a surviving builtin `require` is the fail-closed signal that the connector
 * cannot run at all. The compiler reports it from the esbuild metafile;
 * this scan is the same check for bundles that arrive already compiled (the
 * gateway ships `compiled_code` to device workers), so the executor can refuse
 * at init with the builtin named instead of failing at the connector's first
 * call.
 */
export declare function isNodeBuiltinSpecifier(specifier: string): boolean;
export declare const ISOLATE_PRELUDE_PROVIDED_BUILTINS: Set<string>;
/** Node builtins a bundle still requires, `node:` prefix stripped, sorted. */
export declare function findIsolateIneligibleBuiltins(code: string): string[];
/** Thrown before any isolate work when a bundle needs a Node process. */
export declare class IsolateLaneIneligibleError extends Error {
    readonly builtins: string[];
    constructor(builtins: string[], label?: string);
}
/** Throw `IsolateLaneIneligibleError` when `code` still requires a Node builtin. */
export declare function assertIsolateEligible(code: string, label?: string): void;
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