import { PromptFragmentCustomizationService } from '@theia/ai-core';
import { Command, CommandContribution, CommandRegistry, ILogger, MessageService } from '@theia/core';
import { FrontendApplicationContribution, LocalStorageService } from '@theia/core/lib/browser';
import { CustomAgentFactory } from './custom-agent-factory';
type CustomAgentMigrationReports = Awaited<ReturnType<PromptFragmentCustomizationService['migrateCustomAgentsYaml']>>;
export declare const RERUN_CUSTOM_AGENT_MIGRATION_COMMAND: Command;
export declare class AICustomAgentsFrontendApplicationContribution implements FrontendApplicationContribution, CommandContribution {
    protected readonly customAgentFactory: CustomAgentFactory;
    protected readonly customizationService: PromptFragmentCustomizationService;
    private readonly agentService;
    private readonly chatAgentService;
    protected readonly messageService?: MessageService;
    protected readonly storageService: LocalStorageService;
    protected readonly logger: ILogger;
    private knownCustomAgents;
    /** Ensures the migration consent prompt is shown at most once per session. */
    protected migrationPromptShown: boolean;
    /** Guards against concurrent pending-migration checks from re-entrant refreshes. */
    protected migrationCheckInFlight: boolean;
    registerCommands(commands: CommandRegistry): void;
    onStart(): void;
    protected refreshCustomAgents(): Promise<void>;
    /**
     * Prompts the user once per session before migrating legacy `customAgents.yml` files (and before
     * correcting agents migrated with merged headings by an earlier Theia version). Nothing is written
     * until the user confirms. Declining is safe: legacy `customAgents.yml` files keep being loaded, so
     * agents continue to work unmigrated, and the prompt reappears next session until they migrate or
     * pick "Don't Show Again".
     *
     * This is intentionally not backed by a preference: the whole migration path is transitional and
     * will be removed once the legacy format is no longer supported. The "don't show again" choice is
     * persisted in local storage (like the dev-container suggestion), so there is no setting to retire.
     */
    protected maybeMigrate(): Promise<void>;
    protected promptAndMigrate(): Promise<void>;
    protected showMigrationSummary(reports: CustomAgentMigrationReports): void;
    onStop(): void;
}
export {};
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