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MCP tool hints aligned with ChatGPT app review

Overwrite and live-site MCP tools now declare destructive and open-world hints explicitly; page reordering splits into aveiro_reorder_pages, aveiro_move_page, and aveiro_set_folder_sort.
Updated 8 days ago
Account security — sessions, AI connectors, and sign-out controls
MCP Fix — Read Tools Declare destructiveHint for ChatGPT Review
In short
ChatGPT's app review scans MCP behaviour hints strictly. Aveiro now marks overwrite and live-site tools as destructive or open-world, and splits page reordering into three MCP tools so each call maps to one REST operation.

What changed

MCP tools can advertise behaviour hints — readOnlyHint, destructiveHint, openWorldHint, and sometimes idempotentHint. Hosts such as ChatGPT use them for confirmation UX and for custom-connector quality review. After the earlier fix that set destructiveHint: false on read-only tools, ChatGPT still flagged 13 tools. The hosted server at https://www.aveiro.app/api/mcp/mcp and the stdio build in mcp/aveiro/ now follow the same rules:
  • Overwrites count as destructive — updating a page body, collection, layout, social draft, newsletter draft, or folder order sets destructiveHint: true, even when you can undo the change in the editor.
  • Live-site and URL tools are open-world — publish, Coming soon, published chrome strings, screenshots, mockup films, and media import/load tools set openWorldHint: true because they change what visitors see or fetch a URL you provide.
  • Page reordering is three tools — aveiro_reorder_pages, aveiro_move_page, and aveiro_set_folder_sort each map to one POST /api/v1/sites/{siteId}/reorder operation instead of switching on a single operation argument.
Screenshot tool descriptions now state plainly what each call returns and when to use it.

Who benefits

  • ChatGPT users submitting the Aveiro connector for app directory review
  • Cursor and Claude users who rely on accurate destructive / open-world warnings before a tool runs
  • Automation authors wiring page reorder through MCP without ambiguous tool shapes
No token or scope changes are required. Reconnect the connector if your client cached an older tool list.

Related

  • MCP read tools: explicit destructiveHint — unset hints on read-only tools
  • MCP tool safety hints — overview of hosted and stdio annotations
  • Aveiro MCP server — connect ChatGPT, Claude, or Cursor
  • Reorder pages API — REST operations behind the three reorder tools