AI agents use CreateCodeConnection to create or update resources in Amazon EKS MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Amazon EKS MCP Server environment.
CreateCodeConnection creates a new resource (a code repository connection) which is reversible and modifiable, fitting the Write category. Severity is high because misconfiguration or connection to malicious repositories could enable supply chain attacks or unauthorized code deployments to clusters.
From the tool's definition Tool named 'CreateCodeConnection' with empty description. The 'Create' verb typically indicates resource creation. In AWS EKS context, code connections would establish links to source repositories (e.g., GitHub, CodeCommit) for CI/CD pipelines.
Documented attack patterns abuse exactly the kind of access CreateCodeConnection gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Amazon EKS MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for CreateCodeConnection:
{
"version": "1",
"default": "deny",
"tools": {
"CreateCodeConnection": {
"limits": [
{
"counter": "createcodeconnection_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}CreateCodeConnection 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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CreateCodeConnection. It is categorised as a Write tool in the Amazon EKS MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Amazon EKS MCP Server MCP server in PolicyLayer and add a rule for CreateCodeConnection: 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 EKS MCP Server. Nothing to install.
CreateCodeConnection 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 CreateCodeConnection 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 CreateCodeConnection. 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.
CreateCodeConnection is provided by the Amazon EKS MCP Server MCP server (awslabs.eks-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Amazon EKS 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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