/**
 * `cleo orchestrate spawn --include-deps` (T14045): the base a task branch
 * starts from when it builds on dependencies whose branches have not landed.
 *
 * The orchestrator merges each dependency's `task/<id>` branch, `--no-ff`, into
 * a commit made in a TEMPORARY integration worktree under the project's
 * canonical worktree root; the primary checkout is never touched. The merge
 * commit is then handed to the `--base` path (T14027), so the resolved-sha
 * guard and the lifecycle audit apply as for any explicit base. Nothing is
 * cherry-picked or rewritten: every dependency commit stays reachable.
 *
 * @task T14045
 */
/** One dependency branch folded into the integration commit. */
export interface IncludedDependency {
    /** Dependency task id. */
    taskId: string;
    /** Its branch, `task/<id>`. */
    branch: string;
    /** The commit the branch pointed to when it was merged. */
    sha: string;
}
/** The integration commit, or why none could be built. */
export type DependencyIntegration = {
    ok: true;
    /** Commit the task branch is created from (the last merge, or the base). */
    sha: string;
    /** The base the merges started from, as named (`HEAD` when none). */
    baseRef: string;
    /** The commit `baseRef` resolved to. */
    baseSha: string;
    /** Every dependency merged, in dependency order. */
    dependencies: IncludedDependency[];
} | {
    ok: false;
    /** `E_INCLUDE_DEPS_MISSING`, `E_INCLUDE_DEPS_DIVERGED` or `E_WORKTREE_BASE_INVALID`. */
    code: string;
    message: string;
    fix: string;
};
/**
 * Build the integration commit for `taskId` from its dependencies' branches.
 *
 * A dependency with no `task/<id>` branch is refused (its work cannot be
 * shown to be in the base), as is one sharing no history with the base or
 * one whose merge conflicts. On success the base ref, its sha and each
 * dependency sha are appended to `.cleo/audit/worktree-integration.jsonl`.
 * The temporary worktree is always removed; no existing worktree is touched.
 *
 * @param projectRoot - The project's git checkout.
 * @param taskId - The task being spawned.
 * @param dependencies - Its dependency task ids, in order.
 * @param baseRef - Ref the merges start from (`--base`); HEAD when omitted.
 * @returns The integration commit, or the refusal.
 * @task T14045
 */
export declare function buildDependencyIntegration(projectRoot: string, taskId: string, dependencies: readonly string[], baseRef?: string): Promise<DependencyIntegration>;
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