# thunderstore_list_communities

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.

Agent View of the PolicyLayer registry record for `thunderstore_list_communities`. HTML page: https://policylayer.com/tools/171county-modwrench/thunderstore-list-communities

## Facts

- Tool: `thunderstore_list_communities`
- Server: ModWrench MCP Server (`@modwrench/cli`) — https://policylayer.com/tools/171county-modwrench.md
- Install: `npx -y @modwrench/cli`
- Homepage: https://github.com/171county/modwrench
- Risk category: Read (Low risk)
- Registry record: grade D, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Allowed

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "thunderstore_list_communities",
    "arguments": {}
  }
}
```

## 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.

## Use case

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.

## Recommended policy (PolicyLayer)

Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches ModWrench MCP Server:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "thunderstore_list_communities": {}
  }
}
```

## Other tools on ModWrench MCP Server (16)

- `mw_parse_crashlog` — Execute — https://policylayer.com/tools/171county-modwrench/mw-parse-crashlog.md
- `thunderstore_mod_dependencies` — Execute — https://policylayer.com/tools/171county-modwrench/thunderstore-mod-dependencies.md
- `mw_check_known_conflicts` — Read — https://policylayer.com/tools/171county-modwrench/mw-check-known-conflicts.md
- `mw_detect_environment` — Read — https://policylayer.com/tools/171county-modwrench/mw-detect-environment.md
- `mw_diagnose_crash` — Read — https://policylayer.com/tools/171county-modwrench/mw-diagnose-crash.md
- `mw_query_mod_metadata` — Read — https://policylayer.com/tools/171county-modwrench/mw-query-mod-metadata.md
- `mw_read_load_order` — Read — https://policylayer.com/tools/171county-modwrench/mw-read-load-order.md
- `thunderstore_get_community` — Read — https://policylayer.com/tools/171county-modwrench/thunderstore-get-community.md
- `thunderstore_get_mod` — Read — https://policylayer.com/tools/171county-modwrench/thunderstore-get-mod.md
- `thunderstore_list_mods` — Read — https://policylayer.com/tools/171county-modwrench/thunderstore-list-mods.md
- `thunderstore_mod_versions` — Read — https://policylayer.com/tools/171county-modwrench/thunderstore-mod-versions.md
- `thunderstore_search_mods` — Read — https://policylayer.com/tools/171county-modwrench/thunderstore-search-mods.md
- `thunderstore_top_mods` — Read — https://policylayer.com/tools/171county-modwrench/thunderstore-top-mods.md
- `mw_activate_platform` — Write — https://policylayer.com/tools/171county-modwrench/mw-activate-platform.md
- `mw_deck` — Write — https://policylayer.com/tools/171county-modwrench/mw-deck.md
- `thunderstore_resolve_dependencies` — Write — https://policylayer.com/tools/171county-modwrench/thunderstore-resolve-dependencies.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=171county-modwrench · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/171county-modwrench