Get detailed information about a datasource using its UID
AI agents call get_datasource_by_uid to retrieve information from Grafana MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool performs a simple lookup/query of datasource configuration and metadata. Reading datasource details is non-destructive and informational only. Even if datasource credentials were returned, this remains a Read operation (though the severity could theoretically be higher if sensitive credentials are exposed; however, the classification category is based on the action itself).
From the tool's definition Tool name contains 'get_' and description states 'Get detailed information about a datasource' — this is a retrieval operation with no side effects. It queries datasource metadata by UID without modifying, executing, or deleting anything.
Attacks that exploit this kind of access
Get detailed information about a datasource using its UID. It is categorised as a Read tool in the Grafana MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Grafana MCP Server MCP server in PolicyLayer and add a rule for get_datasource_by_uid: 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 Grafana MCP Server. Nothing to install.
get_datasource_by_uid 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_datasource_by_uid 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_datasource_by_uid. 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_datasource_by_uid is provided by the Grafana MCP Server MCP server (quanticsoul4772/grafana-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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