import type { Rule } from "oh-my-plumb-schema";
import type { ToolCallEntry } from "./session.js";
/**
 * A skill's rules judge only a turn where that skill was loaded, so a skill nobody
 * used costs nothing. The signal: the skill's directory name — the segment before a
 * rule's SKILL.md source — appearing as a whole word in any call of the turn's
 * tool-call log, by tool name or argument summary.
 */
export declare const filterToLoadedSkills: <T extends Rule>(rules: readonly T[], calls: readonly ToolCallEntry[]) => T[];
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