/**
 * Base envelope fields shared by every Claude Code hook event.
 *
 * `envelopeFields` is the reusable field record each event spreads into
 * its own input schema. `HookEnvelope` is the named `Schema.Class` that
 * decodes the base shape alone (useful for tooling and tests that only
 * care about the envelope).
 *
 * @since 0.1.0
 */
import * as Schema from 'effect/Schema';
/**
 * The field record for the hook envelope, reusable via spread:
 *
 * ```ts
 * class PreToolUseInput extends Schema.Class<PreToolUseInput>('PreToolUseInput')({
 *   ...envelopeFields,
 *   hook_event_name: Schema.Literal('PreToolUse'),
 *   tool_name: Schema.String,
 *   tool_input: Schema.Record(Schema.String, Schema.Unknown)
 * }) {}
 * ```
 *
 * `permission_mode` is `optionalKey` because a number of events omit it
 * entirely (SessionStart, SessionEnd, PreCompact, CwdChanged, FileChanged,
 * InstructionsLoaded, etc.).
 *
 * `hook_event_name` is `Schema.String` here; individual event schemas
 * re-declare it as `Schema.Literal(...)` by spreading and overriding.
 *
 * @category Schemas
 * @since 0.1.0
 */
export declare const EffortLevel: Schema.Literals<readonly ["low", "medium", "high", "xhigh", "max"]>;
declare const HookEffort_base: Schema.Class<HookEffort, Schema.Struct<{
    readonly level: Schema.Literals<readonly ["low", "medium", "high", "xhigh", "max"]>;
}>, {}>;
export declare class HookEffort extends HookEffort_base {
}
export declare const envelopeFields: {
    readonly session_id: Schema.String;
    readonly transcript_path: Schema.String;
    readonly cwd: Schema.String;
    readonly hook_event_name: Schema.String;
    readonly permission_mode: Schema.optionalKey<Schema.String>;
    readonly effort: Schema.optionalKey<typeof HookEffort>;
    readonly agent_id: Schema.optionalKey<Schema.String>;
    readonly agent_type: Schema.optionalKey<Schema.String>;
};
declare const HookEnvelope_base: Schema.Class<HookEnvelope, Schema.Struct<{
    readonly session_id: Schema.String;
    readonly transcript_path: Schema.String;
    readonly cwd: Schema.String;
    readonly hook_event_name: Schema.String;
    readonly permission_mode: Schema.optionalKey<Schema.String>;
    readonly effort: Schema.optionalKey<typeof HookEffort>;
    readonly agent_id: Schema.optionalKey<Schema.String>;
    readonly agent_type: Schema.optionalKey<Schema.String>;
}>, {}>;
/**
 * The base envelope as a named, decodable class. Every hook event input
 * is a superset of these fields.
 *
 * @category Schemas
 * @since 0.1.0
 */
export declare class HookEnvelope extends HookEnvelope_base {
}
export {};
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