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opencode tool_calls problem with OpenVINO/Qwen3-Coder-30B-A3B-Instruct-int4-ov

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评估

难度
4/5
预计耗时
3-5 天
新手友好度
45/100
Issue 类型
缺陷
描述清晰度
基本清楚
活跃度
活跃
技术栈
python

调研方向

The issue involves the interaction between opencode and the OpenVINO Model Server (ovms) using a specific Qwen3-Coder model. Start by examining the ovms logs linked in the gist to identify malformed JSON in the API response. Look at the tool_parser and reasoning_parser implementations for Qwen3-Coder models in the ovms codebase. Reproduce the setup with the exact ovms launch command and observe the JSON output in the opencode console to understand the discrepancy.

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描述

bug

Describe the bug
When using opencode against ovms with OpenVINO/Qwen3-Coder-30B-A3B-Instruct-int4-ov at some point after a few steps, I get json-output in the opencode console, I guess something with the API response of ovms is slightly wrong:

Image

This does not happen with non-coder Qwen3 models I tested.

It does also happen with the coder model when omitting the --tool_parser qwen3coder --reasoning_parser qwen3 --enable_tool_guided_generation true options.

To Reproduce
Steps to reproduce the behavior:

  1. Launch the ovms command with --pull to get the model
  2. OVMS launch command: ovms --source_model OpenVINO/Qwen3-Coder-30B-A3B-Instruct-int4-ov --model_repository_path models --task text_generation --rest_bind_address 127.0.0.1 --rest_port 8000 --target_device GPU --tool_parser qwen3coder --reasoning_parser qwen3 --enable_tool_guided_generation true --cache_size 2 --log_level TRACE
  3. Client command: opencode
  4. See error

Expected behavior
opencode should just work?

Logs
see https://gist.github.com/mmoll/723fd621dd2f2bfb1fb5871ce4b549ab

Configuration

  1. OpenVINO and ovms version: 2026.4.0

Additional context
Add any other context about the problem here.

主要语言
C++
星标
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派生
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环境准备

从这里开始

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  2. 在 Issue 下留言说明你要接手 —— 这能避免两个人做同样的事。
  3. Fork 仓库,在一个分支上完成修改。
  4. 提交 Pull Request,并在描述里引用这个 Issue 编号。

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