Opencode Zen Go Kimi 2.5 Error

[sbvelinga]

I have added Opencode Zen Go as provider. GLM 5 and Minimax 2.5 work fine, but when I let Kimi 2.5 use tools it gives the following error:

Sorry, your request failed. Please try again.

Copilot Request id: de5beadf-abd3-4cd3-a6f0-519f5a487e28

{
  "error": {
    "provider_error": {
      "message": "Provider returned error",
      "code": 400,
      "metadata": {
        "raw": {
          "error": {
            "message": "thinking is enabled but reasoning_content is missing in assistant tool call message at index 5",
            "type": "invalid_request_error"
          }
        },
        "provider_name": "Moonshot AI",
        "is_byok": true
      },
      "user_id": "user_2z4xm5LomaIHfsnVqMhFsWrVrGY"
    }
  },
  "stack_trace": [
    "Error: Provider returned error at n.preprocessSSEResponse (c:\\Users\\sbvel.vscode\\extensions\\oevortex.better-copilot-chat-0.3.2\\dist\\extension.js:48:3758)",
    "at processTicksAndRejections (node:internal/process/task_queues:105:5)",
    "at c:\\Users\\sbvel.vscode\\extensions\\oevortex.better-copilot-chat-0.3.2\\dist\\extension.js:48:3336",
    "at ae.fetchWithTimeout (c:\\Users\\sbvel.vscode\\extensions\\oevortex.better-copilot-chat-0.3.2\\dist\\extension.js:40:5313)",
    "at ae.makeRequest (c:\\Users\\sbvel.vscode\\extensions\\oevortex.better-copilot-chat-0.3.2\\dist\\extension.js:40:2856)",
    "at n.handleRequest (c:\\Users\\sbvel.vscode\\extensions\\oevortex.better-copilot-chat-0.3.2\\dist\\extension.js:50:3270)",
    "at n.provideLanguageModelChatResponse (c:\\Users\\sbvel.vscode\\extensions\\oevortex.better-copilot-chat-0.3.2\\dist\\extension.js:2317:21544)"
  ]
}

Setting the SDK mode to Anthropic does not work, as it gives a 400 no body error. May be related to this issue in the opencode repo

[bangnh1]

I'm having the same issue with Opencode Zen Go Kimi 2.5.