check_mattermost

Check Mattermost team messaging server health via GET /api/v4/system/ping. Returns status and database health.

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-mattermost.md

WHAT IT DOES

What check_mattermost does on Mcp Nettools

AI agents call check_mattermost 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_mattermost is rated Low

This tool retrieves diagnostic information about a Mattermost server's health status through a GET request. It does not create, modify, delete, or execute any operations—it simply queries and returns server health metrics. This is a standard monitoring/diagnostic operation with minimal risk, categorizing it as a Read operation with low severity.

From the tool's definition Tool performs a health check via GET /api/v4/system/ping, which is a read-only query operation that returns status and database health information with no side effects.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs check_mattermost 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_mattermost, this is the rule to start with:

check_mattermost Allowed

check_mattermost 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_mattermost": {}
  }
}

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_mattermost call is checked against it from then on.

FAQ

Questions about check_mattermost

What does the check_mattermost tool do? +

Check Mattermost team messaging server health via GET /api/v4/system/ping. Returns status and database health. 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_mattermost? +

Register the Mcp Nettools MCP server in PolicyLayer and add a rule for check_mattermost: 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_mattermost? +

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

Can I rate-limit check_mattermost? +

Yes. Add a rate_limit block to the check_mattermost 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_mattermost completely? +

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

check_mattermost 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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