/**
 * Two-phase tool visibility: in DISCOVERY the agent sees only read/understand
 * tools; the flow-construction/editing/publishing/table-write tools stay hidden
 * until it starts building. Denylist (not allowlist) on purpose — an unclassified
 * new tool degrades to "noisier discovery", never to "a needed tool vanished".
 */
declare function activeToolsForPhase({ phase, allToolNames }: {
    phase: ChatPhase;
    allToolNames: string[];
}): string[];
declare function isBuildOnlyTool(toolName: string): boolean;
declare function isChatHiddenTool(toolName: string): boolean;
export type ChatPhase = 'discovery' | 'build';
export declare const chatToolPhases: {
    activeToolsForPhase: typeof activeToolsForPhase;
    isBuildOnlyTool: typeof isBuildOnlyTool;
    isChatHiddenTool: typeof isChatHiddenTool;
};
export {};
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