fetch_spaces

A read tool on the Storyblok MCP server.

SERVERStoryblok MCP Server SOURCEarjuncodess/storyblok-mcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/arjuncodess-storyblok-mcp/fetch-spaces.md

WHAT IT DOES

What fetch_spaces does on Storyblok MCP Server

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

RISK

Why fetch_spaces is rated Low

The tool name 'fetch_spaces' clearly indicates data retrieval without modification. In the context of a CMS server, fetching spaces would retrieve workspace/container metadata or configuration. This is a non-destructive, read-only operation with minimal blast radius. Confidence is slightly reduced due to empty description, but the name semantics are unambiguous.

From the tool's definition Tool name is 'fetch_spaces' which indicates a retrieval operation. No description provided, but the verb 'fetch' is a standard Read operation pattern (similar to get, retrieve, query).

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs fetch_spaces safely

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

fetch_spaces Allowed

fetch_spaces 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": {
    "fetch_spaces": {}
  }
}

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

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

FAQ

Questions about fetch_spaces

What does the fetch_spaces tool do? +

fetch_spaces is a read tool on the Storyblok MCP Server MCP server. 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 fetch_spaces? +

Register the Storyblok MCP Server MCP server in PolicyLayer and add a rule for fetch_spaces: 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 fetch_spaces? +

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

Can I rate-limit fetch_spaces? +

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

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

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

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