wiki_comment_create · Mcp Wikijs Mv MCP: Risk & Policy

WHAT IT DOES

What wiki_comment_create does on Mcp Wikijs Mv

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

WHY IT NEEDS A POLICY

Why wiki_comment_create needs a policy

This tool creates a new comment record on a wiki page, which is a reversible write operation. Comments can typically be edited or deleted later. The action modifies wiki state by adding content, but does not execute arbitrary code, delete data irreversibly, or move money. The low severity reflects the minimal blast radius—posting comments has limited impact on system integrity or security.

From the tool's definition Tool name 'wiki_comment_create' and description 'Post a comment on a page' indicate creation of new comment data. Rate limiting (1 per 15s) is a control, not a functional distinction.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

wiki_comment_create Rate-limited

wiki_comment_create 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": {
    "wiki_comment_create": {
      "limits": [
        {
          "counter": "wiki_comment_create_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 Mcp Wikijs Mv, so you can run agents against it safely.

FAQ

Questions about wiki_comment_create

What does the wiki_comment_create tool do? +

Post a comment on a page (rate-limited by Wiki.js to ~1 per 15s). It is categorised as a Write tool in the Mcp Wikijs Mv MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on wiki_comment_create? +

Register the Mcp Wikijs Mv MCP server in PolicyLayer and add a rule for wiki_comment_create: 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 Wikijs Mv. Nothing to install.

What risk level is wiki_comment_create? +

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

Can I rate-limit wiki_comment_create? +

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

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

wiki_comment_create is provided by the Mcp Wikijs Mv MCP server (janschachtschabel/mcp-for-wiki-js). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.