/**
 * Minimal semver range check for the shapes @pikku/cli publishes in its own
 * peerDependencies (exact, ^, ~, >=/>/<=/< comparators, space-joined ANDs,
 * || unions). Returns null when the range is not understood so the caller
 * skips the check instead of false-blocking a build. No prerelease handling —
 * a prerelease compares as its base version.
 */
export declare function coreSatisfiesRange(version: string, range: string): boolean | null;
/**
 * Fail the build when the installed @pikku/core cannot work with this CLI.
 *
 * Two distinct failure classes, checked in order:
 *
 * 1. SPLIT (PKU717): more than one @pikku/core version installed. Two module
 *    instances means two separate pikkuState registries at runtime — wirings
 *    (workflows, RPCs, queue workers, middleware) register into whichever copy
 *    the wiring files import, while the runner may read the other, so they
 *    silently fail to resolve (the classic symptom being `WorkflowNotFoundError`
 *    for a workflow that is plainly registered). Distinct versions are the
 *    reliable signal: package managers dedupe identical versions to one physical
 *    copy, so >1 version guarantees a split.
 *
 * 2. SKEW (PKU718): exactly one @pikku/core, but its version violates the CLI's
 *    own @pikku/core peer range. Some package managers (bun, yarn) install past
 *    an unsatisfied peer range instead of failing, and the resulting pair breaks
 *    codegen/runtime with cryptic missing-export errors. Fail here with the
 *    exact versions instead.
 */
export declare function assertSingleCoreVersion(rootDir: string, logger: {
    warn: (message: string) => void;
}): Promise<void>;