---
type: email
from: NateRVance <notifications@github.com>
subject: Re: [openai/openai-agents-python] Tool results as model input fails

 with harmony backed models (gpt-oss) (Issue #1605)
received: 2026-03-06 07:25:04
date_header: Mon, 08 Sep 2025 05:38:30 -0700
priority: normal
status: awaiting_approval
uid: 29788
---

## Email Content

**From:** NateRVance <notifications@github.com>
**Subject:** Re: [openai/openai-agents-python] Tool results as model input fails

 with harmony backed models (gpt-oss) (Issue #1605)
**Date:** Mon, 08 Sep 2025 05:38:30 -0700

### Body (preview)

NateRVance left a comment (openai/openai-agents-python#1605)



@seratch, does my comment from last week give enough context? I think that when the next release of vLLM starts supporting tool calling on gpt-oss over chat/completions, then it will become more common for developers to attempt to integrate gpt-oss with agentic systems over that route, but the incompatibility with Harmony is a show-stopping bug. If this really shouldn't be resolved in openai-agents then I would be happy to report it to vLLM or Harmony, but as far as I can tell, only openai-agents can fill in the tool name with a real value, whereas the others would only be supplying a dummy placeholder.



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