/**
 * HarnessRegistry — central registry for CodingHarness implementations.
 *
 * The registry is populated at extension startup and queried at spawn
 * time to resolve which harness to use for a given agent role.
 *
 * Usage:
 *   const registry = new HarnessRegistry();
 *   registry.register("pi", new PiHarness());
 *   const harness = registry.get("cmd");    // throws if not found
 *   const harness = registry.getOrUndefined("unknown");  // returns undefined
 *   const names = registry.getAllNames();   // ["pi", "cmd"]
 */
import type { CodingHarness } from "#src/harness/interface";
export declare class HarnessRegistry {
    /** Internal map of harness name → harness instance. */
    private harnesses;
    /**
     * Register a harness implementation under the given name.
     *
     * The name should match the `id` property of the harness and the
     * value used in tmux-pilot.config.yaml's `harness` field.
     *
     * @param name - The harness name (e.g. "pi", "cmd")
     * @param harness - The harness implementation instance
     * @throws If a harness with the same name is already registered
     */
    register(name: string, harness: CodingHarness): void;
    /**
     * Retrieve a harness by name.
     *
     * @param name - The harness name to look up
     * @returns The registered CodingHarness instance
     * @throws If no harness is registered under the given name
     */
    get(name: string): CodingHarness;
    /**
     * Retrieve a harness by name, returning undefined instead of throwing.
     *
     * @param name - The harness name to look up
     * @returns The CodingHarness instance, or undefined if not found
     */
    getOrUndefined(name: string): CodingHarness | undefined;
    /**
     * Check if a harness is registered under the given name.
     */
    has(name: string): boolean;
    /**
     * Get the names of all registered harnesses.
     */
    getAllNames(): string[];
    /**
     * Get all registered harness instances.
     */
    getAll(): CodingHarness[];
    /**
     * Get the number of registered harnesses.
     */
    get size(): number;
    /**
     * Remove a harness from the registry.
     *
     * @param name - The harness name to unregister
     * @returns true if the harness was found and removed, false otherwise
     */
    unregister(name: string): boolean;
    /**
     * Remove all harnesses from the registry.
     */
    clear(): void;
}
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