/**
 * nico-overrides.ts — Read and apply agent overrides from `npm:pi-subagents`-style
 * `settings.json` (`subagents.agentOverrides`).
 *
 * Priority (after `@tintinweb/pi-subagents` has resolved its own .md chain):
 *   1. Local  JSON  (.pi/settings.json)  ← highest
 *   2. Global JSON  (~/.pi/agent/settings.json)
 *
 * Overrides are applied to matching agents in the registry. If an agent name
 * from the overrides does not exist in the registry, it is auto-registered
 * using the override fields as the full definition (no .md file needed).
 *
 * Skill mapping (Nico string[] → tintinweb true | string[] | false):
 *   ["*"]     → true   (all skills)
 *   ["foo"]   → ["foo"] (only listed)
 *   [] | false → false  (none)
 *   omitted   → true   (all, fallback)
 */
import type { AgentConfig } from "./types.js";
export interface NicoAgentOverride {
    model?: string | false;
    thinking?: string | false;
    fallbackModels?: string[];
    systemPrompt?: string;
    systemPromptMode?: "append" | "replace";
    inheritProjectContext?: boolean;
    inheritSkills?: boolean;
    defaultContext?: "fresh" | "fork" | false;
    disabled?: boolean;
    skills?: string[] | false;
    tools?: string[] | false;
    completionGuard?: boolean;
    toolBudget?: Record<string, unknown>;
}
/**
 * Read subagents.agentOverrides and subagents.defaultModel from both local
 * and global Nico-style settings.json. Local overrides global on key collision.
 */
export declare function readNicoAgentOverrides(cwd: string): {
    overrides: Record<string, NicoAgentOverride>;
    defaultModel: string | undefined;
};
export declare function resolveNicoSkills(skills: string[] | false | undefined): true | string[] | false;
/**
 * Apply a Nico-style override to an existing tintinweb AgentConfig.
 * JSON values directly overwrite the config (highest priority).
 */
export declare function applyNicoOverride(agent: AgentConfig, override: NicoAgentOverride, nicoDefaultModel?: string): AgentConfig;
/**
 * Apply all Nico overrides to a map of agents (mutating in-place).
 * Agents that don't exist yet are auto-registered from the override.
 */
export declare function applyNicoOverridesToMap(agents: Map<string, AgentConfig>, overrides: Record<string, NicoAgentOverride>, defaultModel?: string): void;
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