Medium Risk

wiki_index

Generate or update the wiki index page (index.md). Scans all documents in the wiki collection, organizes by category, and produces a navigable index with [[wikilinks]]. Optionally writes the index to disk.

How to control wiki_index ↓

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

Medium Risk

wiki_index creates or modifies an index.md file by scanning documents and organizing them. This is a reversible Write operation—the index can be regenerated or deleted without cascading data loss. It does not execute arbitrary code, delete core data irreversibly, or move money.

From the tool's definition Tool description states it 'produces a navigable index' and 'Optionally writes the index to disk', indicating file creation or modification. The phrase 'update the wiki index page' and 'writes the index to disk' confirm write capability.

Risk signalsBulk/mass operation — affects multiple targets

Documented attack patterns abuse exactly the kind of access wiki_index gives an agent:

PolicyLayer is an MCP gateway — it sits between your AI agents and MinerU Document Explorer, and nothing reaches the server without passing your rules. This is the rule we recommend for wiki_index:

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "wiki_index": {
      "limits": [
        {
          "counter": "wiki_index_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

wiki_index 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.

  1. Create a free account and register MinerU Document Explorer — nothing to install.
  2. Add this policy — paste it, or build it visually.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
LIMIT THIS TOOL →

Free to start. No card required.

Go deeper

What does the wiki_index tool do? +

Generate or update the wiki index page (index.md). Scans all documents in the wiki collection, organizes by category, and produces a navigable index with [[wikilinks]]. Optionally writes the index to disk. It is categorised as a Write tool in the MinerU Document Explorer 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_index? +

Register the MinerU Document Explorer MCP server in PolicyLayer and add a rule for wiki_index: 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 MinerU Document Explorer. Nothing to install.

What risk level is wiki_index? +

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

Can I rate-limit wiki_index? +

Yes. Add a rate_limit block to the wiki_index 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_index completely? +

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

wiki_index is provided by the MinerU Document Explorer MCP server (opendatalab/mineru-document-explorer). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every MinerU Document Explorer tool call.

Deterministic rules across all 15 MinerU Document Explorer tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

Free to start. No card required.

15 MinerU Document Explorer tools catalogued and risk-classified — across an index of 42,500+ MCP servers.

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