Get available data sources
AI agents call get_data_sources to retrieve information from Dust MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a read-only operation to retrieve information about available data sources. It has no side effects, does not modify data, execute code, delete resources, or involve financial transactions. The low severity reflects minimal blast radius—an AI agent misusing this tool would only retrieve metadata about data sources, which is non-destructive.
From the tool's definition Tool name 'get_data_sources' and description 'Get available data sources' indicate a retrieval operation that lists or queries available data sources without modification or execution.
Attacks that exploit this kind of access
Get available data sources. It is categorised as a Read tool in the Dust MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Dust MCP Server MCP server in PolicyLayer and add a rule for get_data_sources: 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 Dust MCP Server. Nothing to install.
get_data_sources 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 get_data_sources 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 get_data_sources. 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.
get_data_sources is provided by the Dust MCP Server MCP server (ma3u/dust-mcp-server-postman-railway). 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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