HookOrder

const HookOrder: {
  SDK_FIRST: -100;
  INTERVENTION_OUTPUT: -90;
  DEFAULT: 0;
  INTERVENTION_INPUT: 90;
  SDK_LAST: 100;
};

Defined in: src/hooks/types.ts:48

Presets for hook execution order. Lower values run first. Any number is a valid order — these presets are not bounds, just convenient reference points. SDK_FIRST/SDK_LAST mark where the SDK’s own hooks run, so you can position yours relative to them.

Type Declaration

Name	Type	Default value	Defined in
SDK_FIRST	-100	-100	src/hooks/types.ts:49
INTERVENTION_OUTPUT	-90	-90	src/hooks/types.ts:50
DEFAULT	0	0	src/hooks/types.ts:51
INTERVENTION_INPUT	90	90	src/hooks/types.ts:52
SDK_LAST	100	100	src/hooks/types.ts:53

Example

agent.addHook(BeforeToolCallEvent, callback, { order: HookOrder.SDK_FIRST }) // run with the SDK's earliest hooks
agent.addHook(BeforeToolCallEvent, callback, { order: HookOrder.SDK_FIRST - 1 }) // run before the SDK's earliest hooks