export interface PersonaModel {
    provider: string;
    model: string;
    description?: string;
}
export type PersonaModelsMap = Record<string, PersonaModel>;
export interface PhaseConfig {
    "model-override"?: string | PersonaModel;
}
export interface PipelineConfig {
    "persona-models"?: PersonaModelsMap;
    /** Phase overrides keyed by role string. */
    phases?: Record<string, PhaseConfig>;
}
export interface SkillCurationConfig {
    /**
     * FORGE-S24 SKILL-CURATION pipeline rollout flag. Default false.
     * When false, the four T08–T11 modules (skill-retriever, skill-usage-tracker,
     * skill-curator-subagent, friction-emit) no-op at entry. Wired into the
     * orchestrator handlers (run-task / fix-bug) so a flag-off run is
     * byte-identical to pre-FORGE-S24 behaviour.
     */
    enabled?: boolean;
}
export interface ForgeCliFeatureFlags {
    skillCuration?: SkillCurationConfig;
}
export interface GlobalConfig {
    "persona-models"?: PersonaModelsMap;
    forgeCli?: ForgeCliFeatureFlags;
}
export interface ProjectConfig {
    "persona-models"?: PersonaModelsMap;
    forgeCli?: ForgeCliFeatureFlags;
    pipelines?: Record<string, PipelineConfig>;
}
export interface MergedConfig {
    /** Shallow-merged persona-models (project wins on key collision). */
    "persona-models"?: PersonaModelsMap;
    /** Project-only pipelines (L3/L4 config lives here). */
    pipelines?: Record<string, PipelineConfig>;
    /** The raw global config for L1 lookups — null if absent or invalid. */
    _global: GlobalConfig | null;
    /** The raw project config for L2 lookups — null if absent or invalid. */
    _project: ProjectConfig | null;
}
export interface LayeredConfig {
    global: GlobalConfig | null;
    project: ProjectConfig | null;
    merged: MergedConfig;
    errors: string[];
}
export declare function loadLayeredConfig(cwd: string): LayeredConfig;