/**
 * Darwin CLI — shared parser for the advanced evolution-config flags.
 *
 * Both `darwin run` and `darwin evolve` accept the same knobs that toggle the
 * v0.6/v0.7 evolution config (GEPA reflective optimizer, system-aware merge,
 * Pareto activation gate, instance-wise coverage selection, and the reflection
 * model). This module centralises the flag spelling + parsing so the two
 * commands stay in sync.
 *
 *   --gepa / --no-gepa
 *   --merge / --no-merge
 *   --pareto-gate / --no-pareto-gate
 *   --coverage / --no-coverage
 *   --reflection-model <model-id>
 *   --demos / --no-demos                                       (v0.10.0)
 *   --candidate-selection <active|best|pareto|epsilon-greedy>  (v0.10.0)
 *   --skip-perfect / --no-skip-perfect                         (v0.11.0)
 *   --max-merge <n>                                            (v0.11.0)
 *   --max-test-days <n>                                        (v0.13.0)
 */
import type { EvolutionConfigOverride } from '../types.js';
/** True when `arg` is one of the evolution-config flags this module handles. */
export declare function isEvolutionConfigFlag(arg: string): boolean;
/**
 * Apply a single recognised evolution flag to `target`, mutating it in place.
 *
 * Returns the number of EXTRA argv tokens consumed (1 for `--reflection-model`
 * which takes a value, 0 for the boolean flags). Callers that walk argv use the
 * return value to advance their index. Unknown flags are ignored (return 0) —
 * use {@link isEvolutionConfigFlag} to gate first.
 */
export declare function applyEvolutionFlag(arg: string, nextArg: string | undefined, target: EvolutionConfigOverride): number;
/**
 * Parse an argv slice into an {@link EvolutionConfigOverride}, returning the
 * override plus the tokens that were NOT consumed (so the caller can keep
 * parsing its own flags / positionals). Only the evolution-config flags above
 * are recognised; everything else is passed through untouched.
 */
export declare function parseEvolutionConfigFlags(args: string[]): {
    override: EvolutionConfigOverride;
    rest: string[];
};
/** True when the override carries at least one set flag. */
export declare function hasAnyEvolutionFlag(override: EvolutionConfigOverride): boolean;
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