/**
 * claudeCodeHookProtocol — the Claude Code `HookProtocol`: a hook blocks via exit
 * code 2 or a `permissionDecision: "deny"` / `decision: "block"` JSON decision;
 * the event arrives on stdin. `decideHook` reads the block code + deny values
 * from here. A Codex adapter's `codexHookProtocol` is nearly identical (the same
 * decision model), adding its own `eventEnvVars` (session_id/PLUGIN_ROOT/…).
 */
import type { HookProtocol } from "../../core/hook-protocol.js";
export declare const claudeCodeHookProtocol: HookProtocol;
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