retrieve_single_release

THE RISK

Low Risk

Why retrieve_single_release needs a policy

This tool queries and returns information about a release without creating, modifying, deleting, or executing any operations. It has no side effects and presents minimal security risk as it only exposes existing data.

From the tool's definition Tool name 'retrieve_single_release' and description 'Retrieves a single release' indicate data retrieval with no modification. The verb 'retrieves' is characteristic of Read operations.

Documented attack patterns abuse exactly the kind of access retrieve_single_release gives an agent:

POLICY

How to control retrieve_single_release

PolicyLayer is an MCP gateway — it sits between your AI agents and Storyblok MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for retrieve_single_release:

policy.json

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

retrieve_single_release is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register Storyblok MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

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EXPLORE

Related tools and policies

More Storyblok MCP Server tools

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All 159 Storyblok MCP Server tools →

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about retrieve_single_release

What does the retrieve_single_release tool do? +

Retrieves a single release from a specified Storyblok space. It is categorised as a Read tool in the Storyblok MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on retrieve_single_release? +

Register the Storyblok MCP Server MCP server in PolicyLayer and add a rule for retrieve_single_release: 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 Storyblok MCP Server. Nothing to install.

What risk level is retrieve_single_release? +

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

Can I rate-limit retrieve_single_release? +

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

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

retrieve_single_release is provided by the Storyblok MCP Server MCP server (kiran1689/storyblok-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Storyblok MCP Server tool call.

Start from Storyblok MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →