const parentToken = `PARENT_SAW_${childToken}`;

const parentStartedToken = `PARENT_READY_${nonce}`;

const steerToken = `STEER_${nonce}`;

const steerMessage = `${steerToken}: reply exactly ${childToken} now.`;

const childTask = [

`Immediately call sessions_yield with message="waiting for ${steerToken}".`,

`After a steering message containing ${steerToken} arrives, reply exactly ${childToken}.`,

cfg,

controller: resolveSubagentController({ cfg, agentSessionKey: sessionKey }),

entry: spawnedRun,

message: steerToken,

message: steerMessage,

});

expect(["accepted", "done"]).toContain(steerResult.status);