diff --git a/src/agents/lanes.test.ts b/src/agents/lanes.test.ts
index 88d26ffeb3f9..10f7c08c8506 100644
--- a/src/agents/lanes.test.ts
+++ b/src/agents/lanes.test.ts
@@ -1,28 +1,13 @@
 // Documents nested-agent command lane resolution and session scoping.
 import { describe, expect, it } from "vitest";
-import { CommandLane } from "../process/lanes.js";
 import {
   AGENT_LANE_CRON_NESTED,
   AGENT_LANE_NESTED,
   isNestedAgentLane,
   resolveCronAgentLane,
-  resolveNestedAgentLane,
   resolveNestedAgentLaneForSession,
 } from "./lanes.js";
 
-describe("resolveNestedAgentLane", () => {
-  it("defaults to the nested lane when no lane is provided", () => {
-    expect(resolveNestedAgentLane()).toBe(AGENT_LANE_NESTED);
-  });
-
-  it("preserves explicit lanes", () => {
-    expect(resolveNestedAgentLane("cron")).toBe(CommandLane.Cron);
-    expect(resolveNestedAgentLane("  cron  ")).toBe(CommandLane.Cron);
-    expect(resolveNestedAgentLane("subagent")).toBe("subagent");
-    expect(resolveNestedAgentLane(" custom-lane ")).toBe("custom-lane");
-  });
-});
-
 describe("resolveCronAgentLane", () => {
   it("defaults cron-owned runs to the cron-nested lane", () => {
     expect(resolveCronAgentLane()).toBe(AGENT_LANE_CRON_NESTED);
diff --git a/src/agents/lanes.ts b/src/agents/lanes.ts
index 443165cb96ae..3c27c6dd9e1e 100644
--- a/src/agents/lanes.ts
+++ b/src/agents/lanes.ts
@@ -11,15 +11,6 @@ const AGENT_LANE_CRON: string = CommandLane.Cron;
 const NESTED_LANE = "nested";
 const NESTED_LANE_PREFIX = `${NESTED_LANE}:`;
 
-/** Resolves the lane for nested agent work. */
-export function resolveNestedAgentLane(lane?: string): string {
-  const trimmed = lane?.trim();
-  if (!trimmed) {
-    return AGENT_LANE_NESTED;
-  }
-  return trimmed;
-}
-
 /** Resolves the lane for agent work started from cron. */
 export function resolveCronAgentLane(lane?: string): string {
   const trimmed = lane?.trim();