/**
 * Shared helper for building typed capability stubs.
 *
 * A stub is fully typed (`kind`, `In`, `Out`) so compositions can wire
 * output -> input and lint can check the graph, but `run`/`rollback` throw
 * `CapabilityNotImplementedError` — no cloud calls, no side effects. Cloud
 * implementations land in a later phase (epic #551).
 */
import type { Capability } from "../capability.js";
/**
 * Build a stub `Capability<In, Out>` for `kind`. `supportsRollback` also
 * attaches a `rollback` that throws the same error, so compositions can
 * already reference `rollback` in typed code ahead of the real implementation.
 */
export declare function stubCapability<In, Out>(kind: string, opts?: {
    rollback?: boolean;
}): Capability<In, Out>;
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