import type { Message, Provider } from "@kenkaiiii/gg-ai";
/**
 * A run whose tool calls fail more often than this is thrashing, not
 * progressing — refuse to extend its turn budget.
 */
export declare const TURN_EXTENSION_MAX_FAILURE_RATIO = 0.5;
/** Resolve the per-result cap passed to the agent loop for the active transport. */
export declare function resolveSessionToolResultCharLimit(model: string, provider: Provider, accountId?: string): number;
/**
 * Aggregate budget for ALL tool results produced in one assistant turn.
 * Individual results are already capped, but wide parallel fan-outs (GPT-5.6's
 * signature behavior) were observed injecting 100k+ uncached tokens in a single
 * turn. ~15% of the context window in chars (1 token ≈ 3.5 chars), floored at
 * 100KB so small windows still fit two full-size reads, ceilinged at 240KB so
 * 1M-context models don't waive the budget entirely.
 */
export declare function resolveSessionTurnToolResultCharLimit(model: string, provider: Provider, accountId?: string): number;
/** Marker the compactor prepends to the summary message it injects. */
/**
 * True when an assistant message ends a turn with tool calls still awaiting
 * their results. Inserting a user message there would orphan the tool_use
 * blocks and the provider rejects the next request.
 */
export declare function hasUnresolvedToolCalls(message: Message): boolean;
/** Expand a leading `~` so `/import ~/.codex/...` works from any shell. */
export declare function resolveHomePath(filePath: string): string;