/**
 * Citation-sidecar structural lint + orphan detection (#1503).
 *
 * TS-native port of section9 `scripts/corpus/lint_sidecars.py` (structural
 * lint) and `scripts/corpus/find_orphans.py` (zero-edge sidecars). These are
 * *sidecar-structural* checks — distinct from the generic `aiwg lint
 * --ruleset research` (note-level frontmatter/orphans) that the `research-lint`
 * skill runs. The `research-lint` skill references these for sidecar depth
 * rather than duplicating them (reconcile, don't duplicate).
 *
 * @source historical: corpus/lint_sidecars.py, corpus/find_orphans.py
 * @tests @test/unit/artifacts/sidecar-lint.test.ts
 */
/**
 * Structural lint for one sidecar's text. Mirrors `lint_sidecars.lint`:
 *  - frontmatter present + has `ref:`/`title:`/`type:`
 *  - has an Outgoing section + an Incoming section (merge-redirects exempt)
 *  - no duplicate `| # | Title` table headers under the same sub-header
 *    (the doubled-append bug pattern)
 */
export declare function lintSidecarText(text: string): string[];
export interface SidecarLintResult {
    totalFiles: number;
    filesWithIssues: number;
    totalIssues: number;
    /** issue label → ref ids exhibiting it */
    byIssue: Record<string, string[]>;
}
export declare function lintSidecars(root: string): SidecarLintResult;
export declare function renderLint(r: SidecarLintResult): string;
export interface Orphan {
    ref: string;
    title: string;
}
/**
 * Read the title from a reference analysis doc (`REF-NNN-*.md` or `REF-NNN.md`).
 * Prefers frontmatter `title:`, then the first `# ` heading in the body — so
 * docs that open with a `---` frontmatter block still yield a real title (the
 * section9 original read the literal first line and rendered `---`).
 */
export declare function refTitle(root: string, ref: string): string;
/** Sidecars with zero incoming AND zero outgoing edges (lenient section scan). */
export declare function findOrphans(root: string): Orphan[];
export declare function renderOrphans(orphans: Orphan[]): string;
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