Lists all namespaces available for the current API key and optional tenant ID.
AI agents call listNamespaces to retrieve information from SourceSync Ai MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and enumerates existing namespaces without creating, modifying, or deleting data. It is a read-only operation that provides visibility into available resources. The blast radius of misuse is minimal—an attacker could discover what namespaces exist but cannot alter them or access their contents without additional tools.
From the tool's definition Tool name 'listNamespaces' and description 'Lists all namespaces available' indicate a query/retrieval operation with no data modification or side effects.
Attacks that exploit this kind of access
Lists all namespaces available for the current API key and optional tenant ID. It is categorised as a Read tool in the SourceSync Ai MCP Server MCP Server, which means it retrieves data without modifying state.
Register the SourceSync Ai MCP Server MCP server in PolicyLayer and add a rule for listNamespaces: 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 SourceSync Ai MCP Server. Nothing to install.
listNamespaces 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 listNamespaces 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 listNamespaces. 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.
listNamespaces is provided by the SourceSync Ai MCP Server MCP server (sitegpt/sourcesyncai-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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