/**
 * Code Engine Operations — EngineResult wrappers for code analysis domain.
 *
 * Migrated from `packages/cleo/src/dispatch/engines/code-engine.ts`
 * (ENG-MIG-16 / T1583 / ADR-057 D1). All business logic delegates to
 * the canonical implementations in `./outline.ts`, `./search.ts`,
 * `./unfold.ts`, and `./parser.ts` from `@cleocode/nexus`.
 *
 * Importable from `@cleocode/core/internal` — no intermediate engine file
 * required in the CLI layer.
 *
 * @module code/engine-ops
 * @task T1583 — ENG-MIG-16
 * @epic T1566
 */
import { type EngineResult } from '../engine-result.js';
/**
 * Generate a structural skeleton outline for a source file.
 *
 * Returns a tree of symbols with signatures only (bodies collapsed),
 * suitable for giving agents a quick structural overview.
 *
 * @param projectRoot - Absolute path to the project root directory.
 * @param params - Operation parameters; `file` (string, required), relative or absolute path.
 * @returns EngineResult with SmartOutlineResult on success.
 * @task T1583 — ENG-MIG-16
 */
export declare function codeOutline(projectRoot: string, params?: Record<string, unknown>): Promise<EngineResult>;
/**
 * Search for symbols across the codebase by name or path.
 *
 * Walks the project directory tree, batch-parses source files, and returns
 * symbols matching the query ranked by relevance score.
 *
 * @param projectRoot - Absolute path to the project root directory.
 * @param params - Operation parameters; `query` (string, required), `max` (number), `path` (string), `lang` (string).
 * @returns EngineResult with array of SmartSearchResult on success.
 * @task T1583 — ENG-MIG-16
 */
export declare function codeSearch(projectRoot: string, params?: Record<string, unknown>): Promise<EngineResult>;
/**
 * Extract the complete source of a single named symbol from a file.
 *
 * Includes JSDoc/docstring, decorators, and the full body. AST node
 * boundaries guarantee no truncation.
 *
 * @param projectRoot - Absolute path to the project root directory.
 * @param params - Operation parameters; `file` (string, required), `symbol` (string, required).
 * @returns EngineResult with SmartUnfoldResult on success.
 * @task T1583 — ENG-MIG-16
 */
export declare function codeUnfold(projectRoot: string, params?: Record<string, unknown>): Promise<EngineResult>;
/**
 * Raw AST parse for a single file — extracts all code symbols.
 *
 * Uses tree-sitter native bindings. Returns all symbols found in the file
 * without collapsing bodies (lower-level than `codeOutline`).
 *
 * @param projectRoot - Absolute path to the project root directory.
 * @param params - Operation parameters; `file` (string, required).
 * @returns EngineResult with ParseResult on success.
 * @task T1583 — ENG-MIG-16
 */
export declare function codeParse(projectRoot: string, params?: Record<string, unknown>): Promise<EngineResult>;
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