MCP submission still blocked: annotations error despite correct manifest (May 2026)

API Bugs
,
1

Hitting the same issue reported in April that was supposedly fixed.

After “Scan Tools” succeeds, the form blocks with:
“Each MCP tool must set readOnlyHint, openWorldHint, and destructiveHint to true or false.”

All annotations are present in my manifest (verified via MCP Inspector). Example tool:

{
“name”: “some_name”,
“annotations”: {
“readOnlyHint”: false,
“destructiveHint”: false,
“openWorldHint”: false
}
}

Can someone from OpenAI re-investigate? This was marked fixed April 17 but still blocking submissions as of May 23, 2026.

Screenshot 2026-05-23 at 17.55.25
Screenshot 2026-05-23 at 17.55.251334×536 65.3 KB

2

Fixed now:

    {
      readOnlyHint: tool.readOnlyHint,
      destructiveHint: tool.destructiveHint,
      openWorldHint: tool.openWorldHint,
    },

I had annotations in there as a sub level