{
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  "path": "/t/mcp-tool-only-returns-first-row-via-responses-api/1293690#post_7",
  "publishedAt": "2026-02-06T16:51:19.000Z",
  "site": "https://community.openai.com",
  "textContent": "I found a workaround inspired by the responses expected by the Apps SDK. The solution is to put the whole response in the `structuredContent` field. So the MCP response needs to look like this:\n\n`{`\n` \"structuredContent\": {`\n` \"listOutput\": [...]`\n` }`\n`}`",
  "title": "MCP Tool Only Returns First Row via - Responses API"
}