diff --git a/apps/webapp/app/runEngine/services/triggerTask.server.ts b/apps/webapp/app/runEngine/services/triggerTask.server.ts
index 802f820af..f6456a357 100644
--- a/apps/webapp/app/runEngine/services/triggerTask.server.ts
+++ b/apps/webapp/app/runEngine/services/triggerTask.server.ts
@@ -42,24 +42,16 @@ import type {
 } from "../types";
 import {
   evaluateGate as defaultEvaluateGate,
-  type GateOutcome,
+  type MollifierEvaluateGate,
 } from "~/v3/mollifier/mollifierGate.server";
-import { getMollifierBuffer as defaultGetMollifierBuffer } from "~/v3/mollifier/mollifierBuffer.server";
+import {
+  getMollifierBuffer as defaultGetMollifierBuffer,
+  type MollifierGetBuffer,
+} from "~/v3/mollifier/mollifierBuffer.server";
 import { buildBufferedTriggerPayload } from "~/v3/mollifier/bufferedTriggerPayload.server";
-import { serialiseSnapshot, type MollifierBuffer } from "@trigger.dev/redis-worker";
+import { serialiseSnapshot } from "@trigger.dev/redis-worker";
 import { QueueSizeLimitExceededError, ServiceValidationError } from "~/v3/services/common.server";
 
-export type MollifierEvaluateGate = (
-  inputs: {
-    envId: string;
-    orgId: string;
-    taskId: string;
-    orgFeatureFlags: Record<string, unknown> | null;
-  },
-) => Promise<GateOutcome>;
-
-export type MollifierGetBuffer = () => MollifierBuffer | null;
-
 class NoopTriggerRacepointSystem implements TriggerRacepointSystem {
   async waitForRacepoint(options: { racepoint: TriggerRacepoints; id: string }): Promise<void> {
     return;
diff --git a/apps/webapp/app/v3/mollifier/mollifierBuffer.server.ts b/apps/webapp/app/v3/mollifier/mollifierBuffer.server.ts
index 426458f77..682b9a870 100644
--- a/apps/webapp/app/v3/mollifier/mollifierBuffer.server.ts
+++ b/apps/webapp/app/v3/mollifier/mollifierBuffer.server.ts
@@ -3,6 +3,10 @@ import { env } from "~/env.server";
 import { logger } from "~/services/logger.server";
 import { singleton } from "~/utils/singleton";
 
+// DI seam type for consumers (e.g. triggerTask.server.ts) that need a
+// nullable buffer accessor at construction time.
+export type MollifierGetBuffer = () => MollifierBuffer | null;
+
 function initializeMollifierBuffer(): MollifierBuffer {
   logger.debug("Initializing mollifier buffer", {
     host: env.MOLLIFIER_REDIS_HOST,
diff --git a/apps/webapp/app/v3/mollifier/mollifierGate.server.ts b/apps/webapp/app/v3/mollifier/mollifierGate.server.ts
index dead22190..4fbab0154 100644
--- a/apps/webapp/app/v3/mollifier/mollifierGate.server.ts
+++ b/apps/webapp/app/v3/mollifier/mollifierGate.server.ts
@@ -51,6 +51,12 @@ export type GateInputs = {
 
 export type TripEvaluator = (inputs: GateInputs) => Promise<TripDecision>;
 
+// DI seam type for consumers (e.g. triggerTask.server.ts) that inject the
+// gate at construction time. Deliberately narrower than `evaluateGate`'s
+// real signature — no `deps` param — because consumers only call it with
+// inputs and rely on the module-level defaults.
+export type MollifierEvaluateGate = (inputs: GateInputs) => Promise<GateOutcome>;
+
 export type GateDependencies = {
   isMollifierEnabled: () => boolean;
   isShadowModeOn: () => boolean;