Remove an incorrect reaction-level link.
AI agents call unlink_reaction_link to permanently remove resources in Scifinder Route — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
The tool explicitly removes a link, which is an irreversible deletion of a relationship/association between data records. Removing reaction-level links in a synthesis route database could corrupt research data and cannot easily be undone, making this Destructive with high severity.
From the tool's definition Remove an incorrect reaction-level link
Attacks that exploit this kind of access
Remove an incorrect reaction-level link. It is categorised as a Destructive tool in the Scifinder Route MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Scifinder Route MCP server in PolicyLayer and add a rule for unlink_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.
unlink_reaction_link is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the unlink_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.
Set action: deny in the PolicyLayer policy for unlink_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.
unlink_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.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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