check_signoz

Check SigNoz (OpenTelemetry observability) reachability via GET /api/v1/health. Default port 3301. Returns status from health response.

SERVERMcp Nettools SOURCEaaronckj/mcp-nettools

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/aaronckj-mcp-nettools/check-signoz.md

WHAT IT DOES

What check_signoz does on Mcp Nettools

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

RISK

Why check_signoz is rated Low

This tool queries the reachability and health status of a SigNoz observability service. It is a read-only diagnostic operation that retrieves information without side effects. The low severity reflects that health checks are informational queries with no blast radius—they cannot modify data, execute arbitrary operations, or cause harm even if misused by an agent.

From the tool's definition Tool performs a GET request to a health endpoint (/api/v1/health) and returns the status response. No modification, deletion, or execution of code is involved.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs check_signoz safely

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

check_signoz Allowed

check_signoz 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": {
    "check_signoz": {}
  }
}

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

The button opens the PolicyLayer dashboard: create your workspace, connect Mcp Nettools, apply this rule, and every check_signoz call is checked against it from then on.

FAQ

Questions about check_signoz

What does the check_signoz tool do? +

Check SigNoz (OpenTelemetry observability) reachability via GET /api/v1/health. Default port 3301. Returns status from health response. It is categorised as a Read tool in the Mcp Nettools MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on check_signoz? +

Register the Mcp Nettools MCP server in PolicyLayer and add a rule for check_signoz: 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 Mcp Nettools. Nothing to install.

What risk level is check_signoz? +

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

Can I rate-limit check_signoz? +

Yes. Add a rate_limit block to the check_signoz 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 check_signoz completely? +

Set action: deny in the PolicyLayer policy for check_signoz. 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 check_signoz? +

check_signoz is provided by the Mcp Nettools MCP server (aaronckj/mcp-nettools). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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