Bug

The new Grok web_search provider (added in #12419) returns "No response" for all queries. The API call succeeds (200 OK, takes 13-28s as Grok searches), but the response parsing fails silently.

Root Cause

In runGrokSearch(), the response is parsed as:

const content = data.output_text ?? "No response";

However, the xAI /v1/responses API does not return output_text at the top level. Instead, the text is nested inside the output array:

{
  "output": [
    {
      "type": "message",
      "content": [
        {
          "type": "output_text",
          "text": "The actual response text..."
        }
      ]
    }
  ]
}

Since data.output_text is undefined, it always falls through to "No response".

Fix

Extract text from data.output[].content[].text when output_text is not present at the top level:

let content = data.output_text;
if (!content && Array.isArray(data.output)) {
  for (const item of data.output) {
    if (item.type === "message" && Array.isArray(item.content)) {
      for (const part of item.content) {
        if (part.type === "output_text" && part.text) {
          content = part.text;
          break;
        }
      }
    }
    if (content) break;
  }
}

Verified

Applied this patch locally to the bundled JS and confirmed Grok web_search returns full AI-synthesized answers with inline citations.

Environment

• OpenClaw: 2026.2.9
• Model: grok-4-1-fast-reasoning
• Config: tools.web.search.provider: "grok"

Ref: PR #12419