wikijs_update_tag · Requarks Wiki MCP: Risk & Policy

WHAT IT DOES

What wikijs_update_tag does on Requarks Wiki

AI agents use wikijs_update_tag to create or update resources in Requarks Wiki — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Requarks Wiki environment.

WHY IT NEEDS A POLICY

Why wikijs_update_tag needs a policy

This tool creates or modifies data reversibly by updating tag metadata (slug and title). While tags are typically lower-risk entities compared to page content, the modification is persistent and affects the knowledge base structure. It falls into the Write category rather than Execute because it directly modifies specific tag attributes rather than executing arbitrary code or commands.

From the tool's definition Tool description states it "Update[s] an existing tag" and "Changes the tag slug and/or title," which are modification operations.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

wikijs_update_tag Rate-limited

wikijs_update_tag stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "wikijs_update_tag": {
      "limits": [
        {
          "counter": "wikijs_update_tag_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Requarks Wiki, so you can run agents against it safely.

FAQ

Questions about wikijs_update_tag

What does the wikijs_update_tag tool do? +

Update an existing tag by ID. Changes the tag slug and/or title. Requires WIKI_MUTATIONS_ENABLED=true and may need manage:system permission. confirm is only checked when WIKI_MUTATION_CONFIRM_TOKEN is set. It is categorised as a Write tool in the Requarks Wiki MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on wikijs_update_tag? +

Register the Requarks Wiki MCP server in PolicyLayer and add a rule for wikijs_update_tag: 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 Requarks Wiki. Nothing to install.

What risk level is wikijs_update_tag? +

wikijs_update_tag is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit wikijs_update_tag? +

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

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

wikijs_update_tag is provided by the Requarks Wiki MCP server (uyu423/requarks-wiki-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.