/**
 * adapters/gemini-cli — Gemini CLI platform adapter.
 *
 * Implements HookAdapter for Gemini CLI's JSON stdin/stdout hook paradigm.
 *
 * Gemini CLI hook specifics:
 *   - I/O: JSON on stdin, JSON on stdout (same paradigm as Claude Code)
 *   - Hook names: BeforeTool, AfterTool, PreCompress, SessionStart
 *   - Arg modification: `hookSpecificOutput.tool_input` (merged with original)
 *   - Blocking: `decision: "deny"` in response (NOT permissionDecision)
 *   - Output modification: `decision: "deny"` + reason replaces output,
 *     `hookSpecificOutput.additionalContext` appends
 *   - PreCompress: advisory only (async, cannot block)
 *   - No `decision: "ask"` support
 *   - Hooks don't fire for subagents yet
 *   - Config: ~/.gemini/settings.json (user), .gemini/settings.json (project)
 *   - Session ID: session_id field
 *   - Project dir env: GEMINI_PROJECT_DIR (also CLAUDE_PROJECT_DIR alias)
 *   - Session dir: ~/.gemini/context-mode/sessions/
 */
import type { HookAdapter, HookParadigm, PlatformCapabilities, DiagnosticResult, PreToolUseEvent, PostToolUseEvent, PreCompactEvent, SessionStartEvent, PreToolUseResponse, PostToolUseResponse, PreCompactResponse, SessionStartResponse, HookRegistration } from "../types.js";
export declare class GeminiCLIAdapter implements HookAdapter {
    readonly name = "Gemini CLI";
    readonly paradigm: HookParadigm;
    readonly capabilities: PlatformCapabilities;
    parsePreToolUseInput(raw: unknown): PreToolUseEvent;
    parsePostToolUseInput(raw: unknown): PostToolUseEvent;
    parsePreCompactInput(raw: unknown): PreCompactEvent;
    parseSessionStartInput(raw: unknown): SessionStartEvent;
    formatPreToolUseResponse(response: PreToolUseResponse): unknown;
    formatPostToolUseResponse(response: PostToolUseResponse): unknown;
    formatPreCompactResponse(response: PreCompactResponse): unknown;
    formatSessionStartResponse(response: SessionStartResponse): unknown;
    getSettingsPath(): string;
    getSessionDir(): string;
    getSessionDBPath(projectDir: string): string;
    getSessionEventsPath(projectDir: string): string;
    generateHookConfig(pluginRoot: string): HookRegistration;
    readSettings(): Record<string, unknown> | null;
    writeSettings(settings: Record<string, unknown>): void;
    validateHooks(pluginRoot: string): DiagnosticResult[];
    checkPluginRegistration(): DiagnosticResult;
    getInstalledVersion(): string;
    configureAllHooks(pluginRoot: string): string[];
    backupSettings(): string | null;
    setHookPermissions(pluginRoot: string): string[];
    updatePluginRegistry(pluginRoot: string, version: string): void;
    /** Get the project directory from environment variables. */
    private getProjectDir;
    /**
     * Extract session ID from Gemini CLI hook input.
     * Priority: session_id field > env fallback > ppid fallback.
     */
    private extractSessionId;
}