AI agents call get_instance to retrieve information from Oci without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and retrieves information about a compute instance without creating, modifying, deleting, or executing any operations. It is a straightforward read operation that returns metadata about existing infrastructure. The blast radius is minimal—an agent calling this tool can only access information already visible to authenticated users, with no side effects.
From the tool's definition Tool name 'get_instance' and description 'Get full details of a compute instance by its OCID' indicate data retrieval with no modification. The verb 'Get' and action of fetching details confirm read-only behavior.
Attacks that exploit this kind of access
Get full details of a compute instance by its OCID. It is categorised as a Read tool in the Oci MCP Server, which means it retrieves data without modifying state.
Register the Oci MCP server in PolicyLayer and add a rule for get_instance: 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 Oci. Nothing to install.
get_instance is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the get_instance 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 get_instance. 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.
get_instance is provided by the Oci MCP server (sauryadas/oci-mcp-server). 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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