thunderstore_list_communities

SERVERModWrench MCP Server SOURCE@modwrench/cli

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade D, identity unverified Pull the record →

This record as markdown: /tools/171county-modwrench/thunderstore-list-communities.md

WHAT IT DOES

What thunderstore_list_communities does on ModWrench MCP Server

AI agents call thunderstore_list_communities to retrieve information from ModWrench 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 thunderstore_list_communities is rated Low

Even though thunderstore_list_communities only reads data, uncontrolled read access leaks sensitive information and racks up API costs: an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs thunderstore_list_communities safely

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

thunderstore_list_communities Allowed

thunderstore_list_communities 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": {
    "thunderstore_list_communities": {}
  }
}

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

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

FAQ

Questions about thunderstore_list_communities

What does the thunderstore_list_communities tool do? +

List all communities (games) supported on Thunderstore — Lethal Company, Valheim, R.E.P.O., Risk of Rain 2, Dyson Sphere Program, BONEWORKS, and many more. Returns each community's identifier (slug used in other tool calls) and display name. It is categorised as a Read tool in the ModWrench MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on thunderstore_list_communities? +

Register the ModWrench MCP Server MCP server in PolicyLayer and add a rule for thunderstore_list_communities: 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 ModWrench MCP Server. Nothing to install.

What risk level is thunderstore_list_communities? +

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

Can I rate-limit thunderstore_list_communities? +

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

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

thunderstore_list_communities is provided by the ModWrench MCP Server MCP server (@modwrench/cli). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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