/**
 * apply_patch — multi-file diff tool inspired by OpenAI codex-cli.
 *
 * One tool call instead of N edit_file/write_file calls. The envelope
 * format is self-describing so the model can batch related changes
 * (renames, adds, deletes, edits) into a single auditable diff:
 *
 *   *** Begin Patch
 *   *** Update File: src/foo.ts
 *   @@ class Foo
 *   -  oldLine
 *   +  newLine
 *   *** Add File: src/bar.ts
 *   +contents line 1
 *   +contents line 2
 *   *** Delete File: src/old.ts
 *   *** Move to: src/other.ts
 *   *** End Patch
 *
 * Why this is better than chained edit_file calls:
 *   - One permission prompt covering the whole refactor
 *   - The diff is reviewable as a unit; no half-applied state
 *   - Renames + content edits in the same call (rare-but-real refactor pattern)
 *   - Multi-file refactors cost one tool round-trip
 *
 * Parser notes:
 *   - Lines starting with `*** ` are control lines (begin/end/file ops)
 *   - Hunk header lines start with `@@` — symbol anchor or line number
 *   - Body lines start with `-` (remove), `+` (add), or ` ` (context)
 *   - We require minimum 2 chars context (or `@@` anchor) for each hunk
 *   - Match validation: every `-` line must be findable in the current
 *     file content; otherwise the whole patch rejects (no partial apply)
 */
import type { Tool } from './types.js';
export declare const ApplyPatchTool: Tool;