{
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  "path": "/t/openai-app-submission-tool-scan-failed-internal-service-error/1376398#post_1",
  "publishedAt": "2026-03-11T19:22:45.000Z",
  "site": "https://community.openai.com",
  "textContent": "\n\nWe’re in the process of submitting our MCP to the app directory, and get the error “Tool scan failed: Internal service error”.\n\nTroubleshooting:\n\n  1. The OAuth flow successfully ran.\n  2. Using ngrok we confirmed our service was called & returned a valid 200 response for the tool/list.\n  3. Our full MCP is ~54k tokens, resulting in the 500 error.\n  4. We truncated the tool/list, and found that the tool scan worked when the MCP definition was below ~32k tokens. This worked with any arrangement of tools; the max-size seemed to be the only limitation.\n\n\n\nI’ve submitted a support request to support with specific identifiers. Given the response status is 500, is this a bug?",
  "title": "OpenAI App Submission – Tool scan failed: Internal service error"
}