confirm_reaction_link · Scifinder Route MCP: Risk & Policy

WHAT IT DOES

What confirm_reaction_link does on Scifinder Route

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

WHY IT NEEDS A POLICY

Why confirm_reaction_link needs a policy

Confirming a candidate link creates or finalizes a relationship in the database. This is a reversible write operation (the link could presumably be deleted or unconfirmed), not inherently destructive. Severity is medium because misconfirming links could corrupt reaction-synthesis data, but the action is not irreversible.

From the tool's definition "Confirm a candidate reaction link" — confirms/commits a pending link between a reaction and PDF evidence

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

confirm_reaction_link Rate-limited

confirm_reaction_link 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": {
    "confirm_reaction_link": {
      "limits": [
        {
          "counter": "confirm_reaction_link_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 Scifinder Route, so you can run agents against it safely.

FAQ

Questions about confirm_reaction_link

What does the confirm_reaction_link tool do? +

Confirm a candidate reaction link from PDF evidence block rules. It is categorised as a Write tool in the Scifinder Route MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on confirm_reaction_link? +

Register the Scifinder Route MCP server in PolicyLayer and add a rule for confirm_reaction_link: 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 Scifinder Route. Nothing to install.

What risk level is confirm_reaction_link? +

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

Can I rate-limit confirm_reaction_link? +

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

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

confirm_reaction_link is provided by the Scifinder Route MCP server (kettly1260/scifinder-route-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.