import type { LspDiagnostic } from "./client.js";
/**
 * Render error-severity diagnostics for appending to an edit/write tool
 * result. Empty string when the file has no errors — clean edits stay
 * byte-identical to today's tool output.
 *
 * The header frames the list as informational so the model isn't baited into
 * premature fixes mid-way through a multi-file change (a cross-file error can
 * legitimately resolve once the related edit lands).
 */
export declare function formatDiagnostics(relPath: string, diagnostics: LspDiagnostic[]): string;
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