fetch_components
A read tool on the Storyblok MCP server.
This record as markdown: /tools/arjuncodess-storyblok-mcp/fetch-components.md
What fetch_components does on Storyblok MCP Server
AI agents call fetch_components 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.
Why fetch_components is rated Low
The 'fetch_' prefix universally indicates data retrieval without side effects. In the context of a CMS server managing content, fetching components means querying or listing available component schemas or configurations. This has no destructive, financial, or code-execution implications. Severity is low because misuse would only retrieve existing data, not modify or delete it.
From the tool's definition Tool name 'fetch_components' indicates retrieval of component definitions or metadata from Storyblok CMS. The verb 'fetch' is a retrieval operation with no modification or execution.
Attacks that exploit this kind of access
The rule that runs fetch_components 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_components, this is the rule to start with:
fetch_components is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Storyblok MCP Server, apply this rule, and every fetch_components call is checked against it from then on.
Questions about fetch_components
fetch_components 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.
Register the Storyblok MCP Server MCP server in PolicyLayer and add a rule for fetch_components: 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.
fetch_components 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 fetch_components 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 fetch_components. 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.
fetch_components 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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