search_by_study_uid

A read tool on the AWS MCP server.

SERVERAWS SOURCE@awslabs/mcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity verified Pull the record →

This record as markdown: /tools/aws/search-by-study-uid.md

WHAT IT DOES

What search_by_study_uid does on AWS

AI agents call search_by_study_uid to retrieve information from AWS without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why search_by_study_uid is rated Low

The tool performs a query/lookup by study identifier. Despite empty description, the name strongly indicates a retrieval operation with no mutation. Classified as Read with medium-high confidence given the lack of descriptive details. Severity is low because search operations typically have minimal blast radius.

From the tool's definition Tool name 'search_by_study_uid' contains 'search', which is a classic Read operation pattern. No description provided to suggest side effects.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs search_by_study_uid safely

PolicyLayer is an MCP gateway: it sits between your AI agents and AWS, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For search_by_study_uid, this is the rule to start with:

search_by_study_uid Allowed

search_by_study_uid is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "search_by_study_uid": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect AWS, apply this rule, and every search_by_study_uid call is checked against it from then on.

FAQ

Questions about search_by_study_uid

What does the search_by_study_uid tool do? +

search_by_study_uid is a read tool on the AWS MCP server. It is categorised as a Read tool in the AWS MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on search_by_study_uid? +

Register the AWS MCP server in PolicyLayer and add a rule for search_by_study_uid: 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 AWS. Nothing to install.

What risk level is search_by_study_uid? +

search_by_study_uid is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit search_by_study_uid? +

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

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

search_by_study_uid is provided by the AWS MCP server (@awslabs/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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