prismic_insert_shared_slice · Prismic Content MCP

WHAT IT DOES

What prismic_insert_shared_slice does on Prismic Content MCP

AI agents use prismic_insert_shared_slice to create or update resources in Prismic Content MCP — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Prismic Content MCP environment.

WHY IT NEEDS A POLICY

Why prismic_insert_shared_slice needs a policy

This tool creates a new Shared Slice model within Prismic's content management system. Shared Slices are reusable content components, so inserting one modifies the repository's structure but does not delete or overwrite existing data irreversibly. It is reversible (the slice can be removed or updated later), making it a Write operation rather than Destructive.

From the tool's definition Tool name 'prismic_insert_shared_slice' and description 'Insert a new Shared Slice model' indicate creation of new content/data structure in Prismic. The verb 'insert' combined with 'new' confirms a write operation that adds data reversibly.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

prismic_insert_shared_slice Rate-limited

prismic_insert_shared_slice 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.

View as policy code

policy.json

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

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Prismic Content MCP, so you can run agents against it safely.

FAQ

Questions about prismic_insert_shared_slice

What does the prismic_insert_shared_slice tool do? +

Insert a new Shared Slice model. It is categorised as a Write tool in the Prismic Content MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on prismic_insert_shared_slice? +

Register the Prismic Content MCP server in PolicyLayer and add a rule for prismic_insert_shared_slice: 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 Prismic Content MCP. Nothing to install.

What risk level is prismic_insert_shared_slice? +

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

Can I rate-limit prismic_insert_shared_slice? +

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

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

prismic_insert_shared_slice is provided by the Prismic Content MCP server (rahulpowar/prismic-content-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.