/**
 * Walks up to 12 parent directories from `startPath` to find a Lyse project
 * root: the closest ancestor containing `.lyse.yaml` or `.git`.
 * Falls back to the immediate parent if no marker found.
 *
 * Accepts either a file path (uses its parent directory as the starting
 * point) or a directory path (starts from that directory directly).
 *
 * Shared between MCP tools (audit-file, suggest-fix, preflight-diff) to avoid
 * duplication. v0.1.1 ADR 0014 MCP tools will use the same helper.
 */
export declare function findProjectRoot(startPath: string): string;