1ly_delete_link · 1ly MCP: Risk & Policy

WHAT IT DOES

What 1ly_delete_link does on 1ly

AI agents call 1ly_delete_link to permanently remove resources in 1ly — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.

Parameter	Type	Required	Description
`id`	string	Yes

Parameters from the server's own tool schema.

THE RISK

Critical Risk

Why 1ly_delete_link needs a policy

This tool deletes data (API links) in a way that cannot be reversed. Deletion is the archetypal destructive operation. While the blast radius is scoped to a specific link (mitigating from critical), the irreversibility and potential to break API integrations or access if the wrong link is deleted elevates this to high severity.

From the tool's definition Tool name '1ly_delete_link' combined with description 'Delete an API link by id' explicitly performs an irreversible deletion operation. The action cannot be undone.

Documented attack patterns abuse exactly the kind of access 1ly_delete_link gives an agent:

POLICY

How to control 1ly_delete_link

PolicyLayer is an MCP gateway — it sits between your AI agents and 1ly, and nothing reaches the server without passing your rules. This is the rule we recommend for 1ly_delete_link:

policy.json

{
  "version": "1",
  "default": "deny",
  "hide": [
    "1ly_delete_link"
  ]
}

1ly_delete_link disappears from the agent's tool list entirely, and any attempt to call it is denied. The rest of the server keeps working.

Create a free account and register 1ly — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

RESTRICT THIS TOOL →

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EXPLORE

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Go deeper

Critical-risk tools in 1ly → Every critical-risk tool this server exposes, in one view.
All critical-risk MCP tools → Every critical-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Blast radius → How much damage one compromised or confused agent can do — and how to bound it.
Tool call approval → Approval gates on individual tool calls: auto-allow, prompt, or deny.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about 1ly_delete_link

What does the 1ly_delete_link tool do? +

Delete an API link by id (requires ONELY_API_KEY). It is categorised as a Destructive tool in the 1ly MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.

What parameters does 1ly_delete_link accept? +

1ly_delete_link accepts 1 parameter: id. Required: id. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on 1ly_delete_link? +

Register the 1ly MCP server in PolicyLayer and add a rule for 1ly_delete_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 1ly. Nothing to install.

What risk level is 1ly_delete_link? +

1ly_delete_link is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit 1ly_delete_link? +

Yes. Add a rate_limit block to the 1ly_delete_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 1ly_delete_link completely? +

Set action: deny in the PolicyLayer policy for 1ly_delete_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 1ly_delete_link? +

1ly_delete_link is provided by the 1ly MCP server (@1ly/mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every 1ly tool call.

Start from 1ly, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

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