import type { ContentBlock, Message } from '../session/session-jsonl.js';
import type { Tool } from '../tools/tool-types.js';
/**
 * Read reasoning text from an in-progress assistant message.
 *
 * Prefers the new `Message.thinking` array (provider-native reasoning channel,
 * industry-standard one-shot per-turn reasoning). Falls back to extracting
 * `<thinking>...</thinking>` tag bodies from text content blocks for legacy
 * sessions and for upstream models that emit inline tags inside `text_delta`
 * (rather than via a dedicated `thinking_delta` event).
 */
export declare function extractThinkingTextFromMessage(thinkingChunks: ReadonlyArray<string> | undefined, content: ContentBlock[]): string;
export declare function hasAssistantThinkingHistory(messages: readonly Message[]): boolean;
export declare function isThinkingOnlyAssistantTurn(params: {
    visibleText: string;
    toolCallCount: number;
    thinkingChunks: ReadonlyArray<string>;
    assistantContent: ContentBlock[];
}): boolean;
export declare function buildVisibleAssistantText(params: {
    textParts: ReadonlyArray<string>;
    thinkingFallback: string;
}): string;
/**
 * Some reasoning models mention "I will call tool X for URL Y" in visible text
 * or thinking, but never emit a tool_use. These predicates decide whether the
 * loop should add one corrective model turn.
 */
export declare function shouldNudgeMissingToolInvocationFromPlan(visibleAssistantText: string, namedWebToolRe: RegExp): boolean;
export declare function shouldNudgeMissingToolInvocationFromThinking(thinkingText: string, namedWebToolRe: RegExp): boolean;
export type AgentLoopToolCallDraft = {
    id: string;
    name: string;
    input: Record<string, unknown>;
};
export declare function injectToolCallFromPlanText(params: {
    toolCalls: AgentLoopToolCallDraft[];
    assistantContent: ContentBlock[];
    turnTextParts: string[];
    messageThinkingChunks: string[];
    toolsForRun: Tool[];
    sessionKey: string;
    logInfo?: (message: string, meta?: Record<string, unknown>) => void;
}): void;
export declare function normalizeAssistantToolCalls(params: {
    toolCalls: AgentLoopToolCallDraft[];
    assistantContent: ContentBlock[];
    toolsForRun: Tool[];
    sessionKey: string;
}): void;
export declare function shouldNudgeMissingToolInvocation(params: {
    finalText: string;
    messageThinkingChunks: string[];
    assistantContent: ContentBlock[];
    namedWebToolRe: RegExp;
}): boolean;
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