AI agents use relate to create or update resources in Surreal — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Surreal environment.
SurrealDB supports relationship creation as a core operation. The 'relate' command in SurrealDB is used to create or establish relationships between records, which is a reversible modification operation (Write category). However, confidence is moderate (0.7) because the description is empty, requiring inference from context and naming convention.
From the tool's definition Tool name 'relate' appears among sibling tools that include create, insert, update, upsert (all Write operations) and delete (Destructive).
Documented attack patterns abuse exactly the kind of access relate gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Surreal, and nothing reaches the server without passing your rules. This is the rule we recommend for relate:
{
"version": "1",
"default": "deny",
"tools": {
"relate": {
"limits": [
{
"counter": "relate_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}relate stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
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relate. It is categorised as a Write tool in the Surreal MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Surreal MCP server in PolicyLayer and add a rule for relate: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Surreal. Nothing to install.
relate is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the relate rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for relate. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
relate is provided by the Surreal MCP server (lfnovo/surreal-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Surreal, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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10 Surreal tools catalogued and risk-classified — across an index of 43,000+ MCP servers.