mark_publications_read · Metis Public Health MCP

WHAT IT DOES

What mark_publications_read does on Metis Public Health

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

WHY IT NEEDS A POLICY

Why mark_publications_read needs a policy

This tool reversibly updates the read status of publications, which is a metadata modification. It does not delete data (not Destructive), does not execute arbitrary code (not Execute), and does not involve financial transactions (not Financial). The empty description lowers confidence slightly, but the name strongly suggests a simple status flag update.

From the tool's definition Tool name 'mark_publications_read' indicates a state-change operation on publication records. The verb 'mark' suggests modification of metadata (read status) rather than deletion or creation of new records.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

mark_publications_read Rate-limited

mark_publications_read 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": {
    "mark_publications_read": {
      "limits": [
        {
          "counter": "mark_publications_read_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 Metis Public Health, so you can run agents against it safely.

FAQ

Questions about mark_publications_read

What does the mark_publications_read tool do? +

mark_publications_read. It is categorised as a Write tool in the Metis Public Health MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on mark_publications_read? +

Register the Metis Public Health MCP server in PolicyLayer and add a rule for mark_publications_read: 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 Metis Public Health. Nothing to install.

What risk level is mark_publications_read? +

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

Can I rate-limit mark_publications_read? +

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

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

mark_publications_read is provided by the Metis Public Health MCP server (sveritg/metis_ph). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.