/**
 * Host-owned general artifact write seam.
 */
import { type Logger } from '@opensip-cli/core';
/** Options for {@link createWriteArtifactSeam}. */
export interface WriteArtifactSeamOptions {
    /**
     * Resolves the number of per-tool run-dirs to retain under
     * `.runtime/artifacts/<tool>/` (`cli.artifacts.keep`). Evaluated at
     * write/prune time so `--cwd` runs read the entered scope's project config.
     * Undefined → {@link DEFAULT_ARTIFACT_RETENTION_KEEP}. The host prunes the
     * store after each write whose target lives inside it.
     */
    readonly retentionKeep?: () => number | undefined;
}
/**
 * Build the public `cli.ensureArtifactDir(artifactPath)` implementation
 * (ADR-0091; External Tool Adapter A1/A7).
 *
 * Creates `dirname(artifactPath)` recursively at {@link ARTIFACT_DIR_MODE}. This
 * is the HOST seam a tool calls BEFORE handing the path to an external scanner as
 * its output target, so the per-run dir exists for a scanner that does a bare
 * `open(path, 'w')`. Idempotent (`recursive: true`); a pre-existing dir keeps its
 * mode (only freshly-created dirs get `0o700`, which is exactly the per-run dir).
 */
export declare function createEnsureArtifactDirSeam(logger?: Logger): (artifactPath: string) => Promise<void>;
/** Build the public `cli.writeArtifact(path, bytes)` implementation. */
export declare function createWriteArtifactSeam(logger?: Logger, options?: WriteArtifactSeamOptions): (path: string, bytes: string) => Promise<void>;
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