list_datasources

List available Grafana datasources. Optionally filter by datasource type.

SERVERGrafana MCP Server SOURCE0xteamhq/mcp-grafana

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade C, identity unverified Pull the record →

This record as markdown: /tools/0xteamhq-mcp-grafana/list-datasources.md

WHAT IT DOES

What list_datasources does on Grafana MCP Server

AI agents call list_datasources to retrieve information from Grafana MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why list_datasources is rated Low

This tool retrieves metadata about available datasources in Grafana without creating, modifying, deleting, or executing any operations. It is a passive read operation that returns configuration information, presenting minimal risk even if accessed by an AI agent.

From the tool's definition Tool name 'list_datasources' and description 'List available Grafana datasources' indicate a query/retrieval operation with no modification, deletion, or execution of external operations.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs list_datasources safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Grafana MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For list_datasources, this is the rule to start with:

list_datasources Allowed

list_datasources is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "list_datasources": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Grafana MCP Server, apply this rule, and every list_datasources call is checked against it from then on.

FAQ

Questions about list_datasources

What does the list_datasources tool do? +

List available Grafana datasources. Optionally filter by datasource type. It is categorised as a Read tool in the Grafana MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_datasources? +

Register the Grafana MCP Server MCP server in PolicyLayer and add a rule for list_datasources: 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.

What risk level is list_datasources? +

list_datasources is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit list_datasources? +

Yes. Add a rate_limit block to the list_datasources 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.

How do I block list_datasources completely? +

Set action: deny in the PolicyLayer policy for list_datasources. 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.

What MCP server provides list_datasources? +

list_datasources is provided by the Grafana MCP Server MCP server (0xteamhq/mcp-grafana). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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