smw-query

THE RISK

High Risk

Why smw-query needs a policy

The tool 'runs' a Semantic MediaWiki query, which is an execution of a query engine. While likely read-only in practice (SMW queries retrieve semantic data), the description is truncated and incomplete, so we cannot confirm it has no side effects. 'Runs' implies execution rather than a simple retrieval. Confidence is reduced due to the incomplete description.

From the tool's definition Tool name 'smw-query' and partial description 'Runs a Semantic MediaWiki' indicate execution of a query against Semantic MediaWiki

Documented attack patterns abuse exactly the kind of access smw-query gives an agent:

POLICY

How to control smw-query

PolicyLayer is an MCP gateway — it sits between your AI agents and MediaWiki MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for smw-query:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "smw-query": {
      "limits": [
        {
          "counter": "smw-query_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

smw-query stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

Create a free account and register MediaWiki MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

RATE-LIMIT THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More MediaWiki MCP Server tools

Destructive delete-page Removes a wiki page from public view and returns the deleted title. This is a soft delete: Destructive neowiki-delete-subject Deletes one NeoWiki Subject by ID from its page. Enabled only when the wiki has NeoWiki in Execute cargo-query Returns rows from one or more Cargo tables on the targeted wiki, matching a SQL-style filt Write undelete-page Restores a previously deleted wiki page, including its full revision history, and returns Write create-page Creates a new wiki page with the provided content and returns the new page Write move-page Renames a wiki page, moving it — and by default its talk page — to a new title, and return Write neowiki-set-main-subject Sets which existing Subject on a wiki page is its Main Subject, or clears it. Enabled only Write update-file Uploads a new revision of an existing file from the local disk, preserving prior revisions

All 38 MediaWiki MCP Server tools →

Execute tools on other servers

Android Forensics ADB MCP Server adb_shell_command EMBA-MCP run_emba_scan Frida Game Hacking MCP remove_breakpoint Procmon request_elevation

Go deeper

High-risk tools in MediaWiki MCP Server → Every high-risk tool this server exposes, in one view.
All high-risk MCP tools → Every high-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Agent sandbox → Bounding what an agent can execute and where the boundary should sit.
Least privilege for MCP → Granting agents the minimum tool surface the task needs.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about smw-query

What does the smw-query tool do? +

Runs a Semantic MediaWiki. It is categorised as a Execute tool in the MediaWiki MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on smw-query? +

Register the MediaWiki MCP Server MCP server in PolicyLayer and add a rule for smw-query: 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 MediaWiki MCP Server. Nothing to install.

What risk level is smw-query? +

smw-query is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit smw-query? +

Yes. Add a rate_limit block to the smw-query 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 smw-query completely? +

Set action: deny in the PolicyLayer policy for smw-query. 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 smw-query? +

smw-query is provided by the MediaWiki MCP Server MCP server (@professional-wiki/mediawiki-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every MediaWiki MCP Server tool call.

Start from MediaWiki MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →