deepseek v4 pro开启前思考模式的时候api层丢弃reasoning_content导致接口调用失败

[maoxinxu]

Description

OpenCode Go 代理在收到 Hermes 发来的完整请求后，构建给 DeepSeek 的请求时只保留了 OpenAI Chat Completions 标准字段（`role`, `content`, `tool_calls` 等），把非标准的 `reasoning_content` 过滤掉了，进而导致了api接口报错。

Plugins

hermes + opencode go

OpenCode version

使用的opencode go订阅，不是opencode cli

Steps to reproduce

1. 安装hermes agent
2. 接口opencode go，选择deepseek v4 pro
3. 开始对话，对话几轮后会突然开始失败了，返回如下内容，之后除非切换其他模型否这再也无法正常调用

⚠️  API call failed (attempt 1/3): BadRequestError [HTTP 400]
   🔌 Provider: opencode-go  Model: deepseek-v4-pro
   🌐 Endpoint: https://opencode.ai/zen/go/v1
   📝 Error: HTTP 400: Error from provider (DeepSeek): The `reasoning_content` in the thinking mode must be passed back to the API.
   📋 Details: {'message': 'Error from provider (DeepSeek): The `reasoning_content` in the thinking mode must be passed back to the API.', 'type': 'invalid_request_error', 'param': None, 'code': 'invalid_request_error'}
⚠️ Non-retryable error (HTTP 400) — trying fallback...
❌ Non-retryable error (HTTP 400): HTTP 400: Error from provider (DeepSeek): The `reasoning_content` in the thinking mode must be passed back to the API.
❌ Non-retryable client error (HTTP 400). Aborting.
   🔌 Provider: opencode-go  Model: deepseek-v4-pro
   🌐 Endpoint: https://opencode.ai/zen/go/v1
   💡 This type of error won't be fixed by retrying.

Screenshot and/or share link

Operating System

$ cat /etc/os-release
PRETTY_NAME="Ubuntu 24.04.4 LTS"
NAME="Ubuntu"
VERSION_ID="24.04"
VERSION="24.04.4 LTS (Noble Numbat)"
VERSION_CODENAME=noble
ID=ubuntu
ID_LIKE=debian
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
UBUNTU_CODENAME=noble
LOGO=ubuntu-logo

Terminal

ubuntu自带的terminal

[github-actions]

This issue doesn't fully meet our contributing guidelines.

What needs to be fixed:

• The Description field appears to contain an AI-generated analysis. Please replace it with a concise, first-hand description of the problem you experienced — what you did, what you expected, and what actually happened.

Please edit this issue to address the above within 2 hours, or it will be automatically closed.

---

This issue might be a duplicate of existing issues. Please check:

• DeepSeek V4 Pro (OpenRouter) reasoning_content error - v1.14.27 #24569: Same error — DeepSeek V4 Pro reasoning_content in thinking mode must be passed back to the API

If you believe this was flagged incorrectly, please let a maintainer know.

[maoxinxu]

已经修改了描述信息

[github-actions]

Thanks for updating the issue! It now includes a clear description, steps to reproduce, error logs, a screenshot, and system info. Everything looks good — the compliance flag has been removed.