annotate_dois · Wikicitation MCP: Risk & Policy

WHAT IT DOES

What annotate_dois does on Wikicitation

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

WHY IT NEEDS A POLICY

Why annotate_dois needs a policy

The tool performs annotation—adding or updating metadata fields to DOI records. This is a Write operation because it modifies data (annotations/metadata) without permanently destroying it and without executing arbitrary code.

From the tool's definition 'Annotate a list of DOIs' indicates the tool modifies or enriches data (adds metadata annotations from EuropePMC) to an existing list of DOIs. This is a reversible data modification operation.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

annotate_dois Rate-limited

annotate_dois 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": {
    "annotate_dois": {
      "limits": [
        {
          "counter": "annotate_dois_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 Wikicitation, so you can run agents against it safely.

FAQ

Questions about annotate_dois

What does the annotate_dois tool do? +

Annotate a list of DOIs using EuropePMC. It is categorised as a Write tool in the Wikicitation MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on annotate_dois? +

Register the Wikicitation MCP server in PolicyLayer and add a rule for annotate_dois: 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 Wikicitation. Nothing to install.

What risk level is annotate_dois? +

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

Can I rate-limit annotate_dois? +

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

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

annotate_dois is provided by the Wikicitation MCP server (jsobel1/wikicitation-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.