MCP Tool Reference Low Risk

list_cloudwatch_namespaces

AWS service discovery

Part of the Grafana MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.

WHEN AI AGENTS USE THIS TOOL

AI agents call list_cloudwatch_namespaces to retrieve information from Grafana without modifying any data. This is common in research, monitoring, and reporting workflows where the agent needs context before taking action. Because read operations don't change state, they are generally safe to allow without restrictions — but you may still want rate limits to control API costs.

WHY ENFORCE A POLICY ON LIST_CLOUDWATCH_NAMESPACES

Even though list_cloudwatch_namespaces only reads data, uncontrolled read access can leak sensitive information or rack up API costs. An agent caught in a retry loop could make thousands of calls per minute. A rate limit gives you a safety net without blocking legitimate use.

RECOMMENDED POLICY

Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.

grafana.yaml
tools:
  list_cloudwatch_namespaces:
    rules:
      - action: allow

See the full Grafana policy for all 29 tools.

DETAILS

Tool Name

list_cloudwatch_namespaces

Category

Read

MCP Server

Grafana MCP Server

Risk Level

Low

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SIMILAR READ TOOLS ON OTHER SERVERS

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FREQUENTLY ASKED QUESTIONS

What does the list_cloudwatch_namespaces tool do?

AWS service discovery. It is categorised as a Read tool in the Grafana MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_cloudwatch_namespaces?

Add a rule in your Intercept YAML policy under the tools section for list_cloudwatch_namespaces. You can allow, deny, rate-limit, or validate arguments. Then run Intercept as a proxy in front of the Grafana MCP server.

What risk level is list_cloudwatch_namespaces?

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

Can I rate-limit list_cloudwatch_namespaces?

Yes. Add a rate_limit block to the list_cloudwatch_namespaces rule in your Intercept 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_cloudwatch_namespaces completely?

Set action: deny in the Intercept policy for list_cloudwatch_namespaces. 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_cloudwatch_namespaces?

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

ENFORCE POLICIES ON GRAFANA

Open source. One binary. Zero dependencies.