AI agents call get_object to retrieve information from S3 without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves data from S3 without side effects. It matches the Read category pattern of query/fetch operations that do not alter state. Severity is low because it only accesses existing data; blast radius is limited to information disclosure based on bucket/object access permissions.
From the tool's definition Tool name 'get_object' and description 'Gets an object from an S3 bucket' indicate retrieval of data with no modification or deletion of the object.
Attacks that exploit this kind of access
Gets an object from an S3 bucket. It is categorised as a Read tool in the S3 MCP Server, which means it retrieves data without modifying state.
Register the S3 MCP server in PolicyLayer and add a rule for get_object: 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 S3. Nothing to install.
get_object 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_object 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_object. 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_object is provided by the S3 MCP server (konmam/s3-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
get_object is one line of S3's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
Teams ship this data inside their own products. See what a licence covers →