import type { EvalInterpolationVars, VariantOverride } from "./types.js";
/**
 * Compute interpolation variables from an eval file path.
 *
 * All path-derived variables are relative to `experimentDir`.
 */
export declare function buildInterpolationVars(evalFilePath: string, evalName: string, experimentDir: string): EvalInterpolationVars;
/**
 * Replace `${eval.<key>}` placeholders in a string with corresponding values.
 * Throws if an unknown variable is referenced.
 */
export declare function interpolateString(template: string, vars: EvalInterpolationVars): string;
/**
 * Deep-walk a {@link VariantOverride} and interpolate all string values.
 * Returns a new object — the original is never mutated.
 */
export declare function interpolateVariantOverride(override: VariantOverride, vars: EvalInterpolationVars): VariantOverride;
/**
 * Resolve relative paths in a variant's environment override to absolute
 * paths based on the experiment directory. This ensures that when the
 * runner later resolves paths relative to the eval file directory, the
 * experiment-relative paths are already absolute and won't be misresolved.
 *
 * Fields resolved: skills entries, files[].src, git.source.
 */
export declare function resolveVariantPaths(override: VariantOverride, experimentDir: string): VariantOverride;
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