Cannot disable thinking

[liamdennehy]

Before submitting your bug report

• I've tried finding an answer on the Continue docs site
• I'm not able to find an open issue that reports the same bug
• I've seen the troubleshooting guide on the Continue Docs

Relevant environment info

• OS: Linux
• Continue version: 2.0.0
• IDE version: VSCode 1.135.0
• Model: Qwen3.6-35B-A3B, Aliased as "Coder" (both tested)
• config:

models:
  - name: Cerval Coder Thinking
    provider: llama.cpp
    model: Coder
    apiBase: https://<llama-server>
    roles:
      - chat
      - edit
      - apply
    defaultCompletionOptions:
      reasoning: true
      reasoningBudgetTokens: 2048 
  - name: Cerval Coder Quick
    provider: llama.cpp
    model: Coder
    apiBase: https://<llama-server>
    roles:
      - chat
      - edit
      - apply
    defaultCompletionOptions:
      reasoning: false
    requestOptions:
      extraBodyProperties:
        reasoning_budget: 0

Description

The OpenAI provider pipeline in the VS Code extension automatically intercepts the model name and injects reasoning parameters/wrappers into the payload under the hood. If a user sets up a local llama-server instance where reasoning/thinking is explicitly turned off globally, and adds directive in config.yaml to disable thinking in the request payload, Continue overrides this behavior, perhaps because it detects the string "Qwen" or "DeepSeek" in the models configuration.

Setting defaultCompletionOptions: { reasoning: false } is completely ignored.

To reproduce

1. Run a local llama-server with --alias "Coder,Qwen3.6-35B" and thinking disabled.
2. Verify via raw curl that the endpoint returns clean text with NO reasoning fields or tags.
3. Configure config.yaml to use provider: openai, model: Coder, and reasoning: false as illustrated below.
4. Observe that the model responds with blocks despite user directive to explicitly disable thinking.

Log output

{
  "reasoning": false,
  "model": "Qwen3.6-35B",
  "maxTokens": 4096
}
<think>
Here's a thinking process:

1.  **Analyze User Input:** ...

*** Output from curl http://llama-server/models

{
  "models": [
    {
      "name": "Coder",
      "model": "Coder",
      "modified_at": "",
      "size": "",
      "digest": "",
      "type": "model",
      "description": "",
      "tags": [
        ""
      ],
      "capabilities": [
        "completion",
        "multimodal"
      ],
      "parameters": "",
      "details": {
        "parent_model": "",
        "format": "gguf",
        "family": "",
        "families": [
          ""
        ],
        "parameter_size": "",
        "quantization_level": ""
      }
    }
  ],
  "object": "list",
  "data": [
    {
      "id": "Coder",
      "aliases": [
        "Coder",
        "Qwen3.6-35B"
      ],
      "tags": [],
      "object": "model",
      "created": 1788340597,
      "owned_by": "llamacpp",
      "meta": {
        ...
      }
    }
  ]
}