import type { CheckpointMechanism } from "./types.js";
export declare function registerCheckpointMechanism(name: string, impl: CheckpointMechanism): void;
export declare function getCheckpointMechanism(name: string): CheckpointMechanism;
/**
 * Minimal config shape for per-checkpoint override resolution.
 * Structural subset of BoberConfig — passing a real BoberConfig works without a cast.
 *
 * Sprint 14: added mode field and extended checkpointOverrides type.
 */
export interface CheckpointOverrideConfig {
    pipeline?: {
        /** Global default checkpoint mechanism name (e.g., "noop", "cli", "disk", "pr"). */
        checkpointMechanism?: string;
        /** Per-checkpoint overrides: { "<checkpointId>": "<mechanismName>" } */
        checkpointOverrides?: Record<string, string>;
        /** Pipeline execution mode — determines mechanism default when checkpointMechanism is unset. */
        mode?: "autopilot" | "careful";
        /** Allow any additional pipeline fields (e.g., maxCheckpointIterations) from BoberConfig. */
        [key: string]: unknown;
    };
}
/**
 * Pure resolution function — returns the mechanism name string without doing a registry lookup.
 * Sprint 14: implements 6-tier resolution order:
 *   1. cliOverrideAll && cliOverride → cliOverride (force-all CLI flag)
 *   2. config.pipeline.checkpointOverrides[checkpointId] (most specific per-checkpoint config)
 *   3. cliOverride (per-run CLI flag, deferred to after per-checkpoint config override)
 *   4. config.pipeline.checkpointMechanism (global config default, if set)
 *   5. mode default: mode='careful' → 'disk', mode='autopilot' or unset → 'noop'
 *   6. fallback param (back-compat hatch for callers that supply one)
 *
 * Exported so that pipeline.ts can snapshot the resolved name once per run for audit logging.
 */
export declare function resolveCheckpointMechanismName(checkpointId: string, config: CheckpointOverrideConfig | undefined, cliOverride?: string, cliOverrideAll?: boolean, fallback?: string): string;
/**
 * Resolve the mechanism for a specific checkpoint. Resolution order:
 *   1. (cliOverrideAll && cliOverride) → cliOverride (force-all CLI flag)
 *   2. config.pipeline.checkpointOverrides[checkpointId] (per-checkpoint config)
 *   3. cliOverride (per-run CLI flag, after per-checkpoint config)
 *   4. config.pipeline.checkpointMechanism (global config default)
 *   5. mode default: 'careful' → 'disk', 'autopilot'/unset → 'noop'
 *   6. fallback param (back-compat; e.g., "noop")
 *
 * Sprint 14: extended with optional cliOverride + cliOverrideAll trailing params.
 * All existing 3-arg and 2-arg call-sites continue to work unchanged.
 */
export declare function getCheckpointMechanismFor(checkpointId: string, config: CheckpointOverrideConfig | undefined, fallback?: string, cliOverride?: string, cliOverrideAll?: boolean): CheckpointMechanism;
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