AI agents call listBackups to retrieve information from Heptabase MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool lists backups—a query/enumeration operation with no side effects. It retrieves information without modifying, deleting, or executing code. Confidence is high (0.9) because the name is clear and consistent with the server's read-oriented functionality, though the empty description prevents absolute certainty.
From the tool's definition Tool name 'listBackups' indicates a read operation that retrieves or enumerates backup objects. The server's overall purpose describes 'search, retrieve, analyze, and export data' without modification.
Documented attack patterns abuse exactly the kind of access listBackups gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Heptabase MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for listBackups:
{
"version": "1",
"default": "deny",
"tools": {
"listBackups": {}
}
}listBackups is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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listBackups. It is categorised as a Read tool in the Heptabase MCP MCP Server, which means it retrieves data without modifying state.
Register the Heptabase MCP server in PolicyLayer and add a rule for listBackups: 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 Heptabase MCP. Nothing to install.
listBackups is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the listBackups 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 listBackups. 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.
listBackups is provided by the Heptabase MCP server (larrystanley/heptabase-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Heptabase MCP, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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14 Heptabase MCP tools catalogued and risk-classified — across an index of 43,000+ MCP servers.