add_story_to_release

THE RISK

Medium Risk

Why add_story_to_release needs a policy

Adding a story to a release creates or modifies a release definition, which is a reversible operation. This falls under Write rather than Execute (no code execution implied) or Destructive (the action can be undone by removing the story from the release). The empty description lowers confidence slightly, but the server context and tool name sufficiently indicate a content modification action.

From the tool's definition Tool name is 'add_story_to_release'. The name indicates creation or modification of release content associations.

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

POLICY

How to control add_story_to_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 add_story_to_release:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "add_story_to_release": {
      "limits": [
        {
          "counter": "add_story_to_release_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

add_story_to_release 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.

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.

LIMIT THIS TOOL →

Free to start. No card required.

EXPLORE

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Go deeper

Govern customer-ops agents → PII redaction, approval on external messages, and no-bulk-delete rules on the records agents change.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Argument validation → Checking tool call arguments against schema and policy before they run.
Scoped token → Per-person credentials that grant a defined subset of servers and tools.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →
PolicyLayer vs alternatives → How deterministic, per-call MCP policy compares with gateways, identity layers, and authorisation platforms.

FAQ

Questions about add_story_to_release

What does the add_story_to_release tool do? +

add_story_to_release. 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.

How do I enforce a policy on add_story_to_release? +

Register the Storyblok MCP Server MCP server in PolicyLayer and add a rule for add_story_to_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 add_story_to_release? +

add_story_to_release is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit add_story_to_release? +

Yes. Add a rate_limit block to the add_story_to_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 add_story_to_release completely? +

Set action: deny in the PolicyLayer policy for add_story_to_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 add_story_to_release? +

add_story_to_release 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.

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 →