Update an existing asset’s metadata or settings.
AI agents use update_asset to create or update resources in Storyblok MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Storyblok MCP Server environment.
This tool creates or modifies data reversibly, fitting the Write category. It updates asset metadata/settings rather than executing code or triggering side effects dependent on complex arguments. Severity is medium because unauthorized asset modifications could affect content delivery or presentation in a CMS, but the changes are reversible and do not cause permanent data loss or financial impact.
From the tool's definition Tool name 'update_asset' and description 'Update an existing asset's metadata or settings' indicate modification of existing data in a reversible manner. The tool modifies asset properties without deleting or destroying data.
Documented attack patterns abuse exactly the kind of access update_asset gives an agent:
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 update_asset:
{
"version": "1",
"default": "deny",
"tools": {
"update_asset": {
"limits": [
{
"counter": "update_asset_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}update_asset stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
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Update an existing asset’s metadata or settings. It is categorised as a Write tool in the Storyblok MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Storyblok MCP Server MCP server in PolicyLayer and add a rule for update_asset: 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.
update_asset is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the update_asset 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 update_asset. 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.
update_asset 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.
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.
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159 Storyblok MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.