AI agents use policy_create to create or update resources in Amazon Translate MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Amazon Translate MCP Server environment.
Policy creation is a reversible write operation that modifies system configuration and access controls. While not destructive (policies can be deleted), misuse could grant unintended permissions. Severity is high because created policies can broadly impact system security and access, but it's not critical since the operation is reversible and doesn't directly move money or irreversibly delete data.
From the tool's definition Tool name is 'policy_create' which indicates creation of a policy resource. The empty description limits direct evidence, but the naming pattern combined with sibling tools like 'add_inline_policy' suggests this creates AWS IAM policies or similar access…
Documented attack patterns abuse exactly the kind of access policy_create gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Amazon Translate MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for policy_create:
{
"version": "1",
"default": "deny",
"tools": {
"policy_create": {
"limits": [
{
"counter": "policy_create_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}policy_create 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.
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policy_create. It is categorised as a Write tool in the Amazon Translate MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Amazon Translate MCP Server MCP server in PolicyLayer and add a rule for policy_create: 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 Amazon Translate MCP Server. Nothing to install.
policy_create is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the policy_create 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 policy_create. 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.
policy_create is provided by the Amazon Translate MCP Server MCP server (awslabs.amazon-translate-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Amazon Translate MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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