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Avoid env-server trace recopy #1809

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Merged
xeophon merged 1 commit into from
Jun 21, 2026
Merged

Avoid env-server trace recopy #1809

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7 changes: 4 additions & 3 deletions verifiers/v1/serve/server.py
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Original file line number Diff line number Diff line change
Expand Up @@ -122,14 +122,15 @@ async def _run_rollout(self, req: RunRolloutRequest) -> RunRolloutResponse:
ctx = self._context(req.client, req.model, req.sampling)
episode = self.env.episode(self.tasks[req.task_idx], ctx, n=1)
traces = await episode.run()
# dump to a dict so the `Trace[WireTask]` field re-types the concrete task to WireTask
return RunRolloutResponse(trace=traces[0].model_dump())
# Trust the concrete trace; serialize it once before client-side re-typing.
return RunRolloutResponse.model_construct(trace=traces[0])

async def _run_group(self, req: RunGroupRequest) -> RunGroupResponse:
ctx = self._context(req.client, req.model, req.sampling)
episode = self.env.episode(self.tasks[req.task_idx], ctx, n=req.n)
traces = await episode.run()
return RunGroupResponse(traces=[t.model_dump() for t in traces])
# Avoid a dump-and-validate copy for every trusted trace in the group.
return RunGroupResponse.model_construct(traces=traces)

async def _handle(
self, client_id: bytes, request_id: bytes, method: bytes, payload: bytes
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