/**
 * Host capability snapshot — what local tooling is available on the
 * current machine. Doctor and setup inject a capabilities object directly
 * so tests don't have to mock `which`.
 */
export interface HostCapabilities {
    /** True when the `safehouse` binary is on PATH. */
    hasSafehouse: boolean;
    /** True when the `sbx` (Docker Sandboxes) binary is on PATH. */
    hasSbx: boolean;
    /** True when the `cmux` binary is on PATH. */
    hasCmux: boolean;
    /** True when the `tmux` binary is on PATH. */
    hasTmux: boolean;
    /** True when the `zellij` binary is on PATH. */
    hasZellij: boolean;
    /** True when the host platform is macOS. Safehouse is macOS-only. */
    isMacOS: boolean;
    /** True when the host platform is Linux. */
    isLinux: boolean;
    /**
     * True when the host platform is one Safehouse supports. Safehouse is
     * macOS-only at time of writing; local setup uses this to reject Linux
     * or WSL before creating a worktree.
     */
    isSafehouseSupported: boolean;
    /**
     * True when sdx (Docker Sandboxes) is supportable on this platform —
     * sbx is published for both macOS and Linux, so this stays in sync with
     * "macOS || Linux". WSL inherits Linux capabilities transparently.
     */
    isSdxSupported: boolean;
}
/**
 * Resolves a binary on PATH the same way `which` does. Returns the first
 * matching absolute path, or `undefined` if missing. Shared with `doctor`
 * so both the host detector and the user-facing report use one probe.
 */
export declare function which(cmd: string, signal?: AbortSignal): Promise<string | undefined>;
export declare function detectHostCapabilities(signal?: AbortSignal): Promise<HostCapabilities>;
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