kya_create_card · Agent Safety MCP: Risk & Policy

WHAT IT DOES

What kya_create_card does on Agent Safety

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

WHY IT NEEDS A POLICY

Why kya_create_card needs a policy

The tool appears to create a card object (likely a signed audit trail or credential card based on context of 'kya_*' functions and the server's stated purpose of creating 'signed audit trails'). Card creation is a Write operation—it generates new data reversibly. While it involves cryptographic signing, it does not execute arbitrary code or delete data, placing it in Write rather than Execute or Destructive.

From the tool's definition Tool name 'kya_create_card' suggests creating a signed card object; sibling tools include 'kya_generate_keypair' and 'kya_sign_card', indicating cryptographic operations. The description is empty, limiting precision.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

kya_create_card Rate-limited

kya_create_card 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": {
    "kya_create_card": {
      "limits": [
        {
          "counter": "kya_create_card_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 Agent Safety, so you can run agents against it safely.

FAQ

Questions about kya_create_card

What does the kya_create_card tool do? +

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

How do I enforce a policy on kya_create_card? +

Register the Agent Safety MCP server in PolicyLayer and add a rule for kya_create_card: 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 Agent Safety. Nothing to install.

What risk level is kya_create_card? +

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

Can I rate-limit kya_create_card? +

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

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

kya_create_card is provided by the Agent Safety MCP server (luciferforge/agent-safety-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.