Common causes
- An agent or MCP client on a Free account tried a mutating tool.
- The account was downgraded to Free while still holding a read-write key.
How to fix it
- Upgrade to Growth or Scale to unlock mutating MCP tools.
- Or keep the Free plan and use the read tools only.
Related codes
Still stuck?
Ask support and mention RU-1005: the code pins down the exact refusal path, so you skip the diagnostic back-and-forth.