/**
 * M61: pi's built-in slash commands (pi 1.5.0) and how a peek runs each. pi does not export
 * its list (BUILTIN_SLASH_COMMANDS is internal to dist/core/slash-commands.js), so it is
 * carried here; test/pi-commands.test.ts fails when a pi upgrade adds or removes a name.
 *
 * - hub: the hub has its own (model, thinking, name, compact): not listed in the pi group.
 * - screen: runs and shows something; the peek types it in and shows the screen.
 * - picker: opens a picker or dialog in pi; the peek types it in and attaches.
 * - confirm: ends the session (asked twice).
 */
export type PiCommandHow = "hub" | "screen" | "picker" | "confirm";
export interface PiCommand {
    name: string;
    description: string;
    argumentHint?: string;
    how: PiCommandHow;
    /** What pi does with words after the name: it matches the others exactly (`/tree foo` would go to the model as a prompt). */
    args?: "optional" | "required";
}
export declare const PI_COMMANDS: PiCommand[];
export declare const piCommand: (name: string) => PiCommand | undefined;
/** A command of a pi session as its worker lists it (commands.json). */
export interface SessionCommand {
    name: string;
    description?: string;
    source: "extension" | "prompt" | "skill";
}
/** The worker's `pi.getCommands()` as commands.json keeps it: bounded, one-line descriptions. */
export declare function sessionCommandsFrom(list: unknown): SessionCommand[];