[Bug] Error: Unexpected non-whitespace character after JSON at position

[pipi32167]

Describe the bug

I used mcp/puppteer to search RAG in duckduckgo but failed with error

I also checked the console and found the chat response like this:

data: {"message":"{\"type\":\"chat_info\",\"content\":{\"id\":\"432f05da-4c58-46a1-b886-00ec723d9259\",\"title\":\"New Chat\"}}"}

data: {"message":"{\"type\":\"text\",\"content\":\"To\"}"}

data: {"message":"{\"type\":\"text\",\"content\":\" perform\"}"}

data: {"message":"{\"type\":\"text\",\"content\":\" a\"}"}

data: {"message":"{\"type\":\"text\",\"content\":\" search\"}"}

data: {"message":"{\"type\":\"text\",\"content\":\" for\"}"}

data: {"message":"{\"type\":\"text\",\"content\":\" \\\"\"}"}

data: {"message":"{\"type\":\"text\",\"content\":\"R\"}"}

data: {"message":"{\"type\":\"text\",\"content\":\"AG\"}"}

data: {"message":"{\"type\":\"text\",\"content\":\"\\\"\"}"}

data: {"message":"{\"type\":\"text\",\"content\":\" using\"}"}

data: {"message":"{\"type\":\"text\",\"content\":\" the\"}"}

data: {"message":"{\"type\":\"text\",\"content\":\" Duck\"}"}

data: {"message":"{\"type\":\"text\",\"content\":\"D\"}"}

data: {"message":"{\"type\":\"text\",\"content\":\"uck\"}"}

data: {"message":"{\"type\":\"text\",\"content\":\"Go\"}"}

data: {"message":"{\"type\":\"text\",\"content\":\" search\"}"}

data: {"message":"{\"type\":\"text\",\"content\":\" engine\"}"}

data: {"message":"{\"type\":\"text\",\"content\":\",\"}"}

data: {"message":"{\"type\":\"text\",\"content\":\" I\"}"}

data: {"message":"{\"type\":\"text\",\"content\":\" will\"}"}

data: {"message":"{\"type\":\"text\",\"content\":\" navigate\"}"}

data: {"message":"{\"type\":\"text\",\"content\":\" to\"}"}

data: {"message":"{\"type\":\"text\",\"content\":\" the\"}"}

data: {"message":"{\"type\":\"text\",\"content\":\" Duck\"}"}

data: {"message":"{\"type\":\"text\",\"content\":\"D\"}"}

data: {"message":"{\"type\":\"text\",\"content\":\"uck\"}"}

data: {"message":"{\"type\":\"text\",\"content\":\"Go\"}"}

data: {"message":"{\"type\":\"text\",\"content\":\" website\"}"}

data: {"message":"{\"type\":\"text\",\"content\":\" and\"}"}

data: {"message":"{\"type\":\"text\",\"content\":\" input\"}"}

data: {"message":"{\"type\":\"text\",\"content\":\" the\"}"}

data: {"message":"{\"type\":\"text\",\"content\":\" search\"}"}

data: {"message":"{\"type\":\"text\",\"content\":\" term\"}"}

data: {"message":"{\"type\":\"text\",\"content\":\".\"}"}

data: {"message":"{\"type\":\"text\",\"content\":\" Let\"}"}

data: {"message":"{\"type\":\"text\",\"content\":\"'s\"}"}

data: {"message":"{\"type\":\"text\",\"content\":\" proceed\"}"}

data: {"message":"{\"type\":\"text\",\"content\":\" with\"}"}

data: {"message":"{\"type\":\"text\",\"content\":\" this\"}"}

data: {"message":"{\"type\":\"text\",\"content\":\" action\"}"}

data: {"message":"{\"type\":\"text\",\"content\":\".\\n\\n\"}"}

data: {"message":"{\"type\":\"text\",\"content\":\"<tool_call>\"}"}

data: {"message":"{\"type\":\"text\",\"content\":\"\\n\"}"}

data: {"message":"{\"type\":\"text\",\"content\":\"\\n\"}"}

data: {"message":"{\"type\":\"text\",\"content\":\"\\n\"}"}

data: {"message":"{\"type\":\"error\",\"content\":\"Unexpected non-whitespace character after JSON at position 36 (line 1 column 37)\"}"}

data: {"message":{"type":"error","content":"Unexpected non-whitespace character after JSON at position 36 (line 1 column 37)"}}

Env

MacOS: 15.3.1
Dive: v0.6.0
mcp/puppteer image ID: 9ac1f3fb00ad
Model: Qwen2.5-32B-Instruct

[johnfunmula]

@pipi32167 Could you try using v0.6.2 to check if it still happens?

[pipi32167]

@pipi32167 Could you try using v0.6.2 to check if it still happens?

Still not working

[pipi32167]

I replaced my model with Olama's QWEN 2.5-7b or openrouter's gemini 2.0 flash, all works fine now.
I think the instruct version model of siliconcloud cannot work here.

[johnfunmula]

Understood. If that's the case, we will research the compatibility with siliconcloud.

[johnfunmula]

v0.6.3 should already work with siliconcloud.