AI agents call confluence_list_spaces to retrieve information from Sage MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and returns a list of Confluence spaces, which is a read-only operation. It retrieves information without creating, modifying, deleting, or executing any actions. The blast radius is minimal as it only exposes metadata about available spaces, typically already visible to authenticated users. Severity is low because listing spaces has no destructive or risky consequences.
From the tool's definition Tool name 'confluence_list_spaces' and description 'List Confluence spaces' indicate a retrieval operation with no modification or side effects.
Documented attack patterns abuse exactly the kind of access confluence_list_spaces gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Sage MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for confluence_list_spaces:
{
"version": "1",
"default": "deny",
"tools": {
"confluence_list_spaces": {}
}
}confluence_list_spaces is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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List Confluence spaces. It is categorised as a Read tool in the Sage MCP MCP Server, which means it retrieves data without modifying state.
Register the Sage MCP server in PolicyLayer and add a rule for confluence_list_spaces: 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 Sage MCP. Nothing to install.
confluence_list_spaces 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 confluence_list_spaces 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 confluence_list_spaces. 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.
confluence_list_spaces is provided by the Sage MCP server (sagemcp/sagemcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 359 Sage MCP tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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359 Sage MCP tools catalogued and risk-classified — across an index of 42,500+ MCP servers.