export interface ValidationEntry {
    severity: "error" | "warning";
    /** e.g. "om-layer#points" — tag name, plus #id when the element has one. */
    element: string;
    attribute?: string;
    message: string;
    /** An instruction, not just a diagnosis — what makes this useful to an agent. */
    fix: string;
}
export interface ValidationResult {
    valid: boolean;
    errors: ValidationEntry[];
    warnings: ValidationEntry[];
}
/**
 * A scalar/shorthand attribute value that is actually a data-driven accessor
 * expression — a `$field` reference or a `scale()`/`clamp()`/`lerp()`/
 * `colorRamp()`/`formatDate()` call. Scalar props take a CONSTANT; an expression here doesn't
 * coerce (deck.gl gets a string/NaN and silently falls back to defaults — the
 * "black squares" / invisible-layer class of bug), and the value belongs in a
 * `get-*` accessor instead. Word-boundary on the function names so a literal
 * like "grayscale(" doesn't false-match.
 */
export declare function looksLikeAccessorExpression(raw: string): boolean;
/**
 * Validates a manifest already parsed into a DOM tree — a live `<om-map>`
 * (mounted or not) or a detached `Document`/`DocumentFragment` (what
 * `validateManifestString` builds via `DOMParser`).
 */
export declare function validateManifest(root: ParentNode): ValidationResult;
/** `OmMap.validate(htmlString)` — the pre-flight agent feedback loop. */
export declare function validateManifestString(htmlString: string): ValidationResult;