store_news_article · Calculator Tools MCP Server MCP

WHAT IT DOES

What store_news_article does on Calculator Tools MCP Server

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

WHY IT NEEDS A POLICY

Why store_news_article needs a policy

This tool creates/writes a new node in a Neo4j database. It is a reversible write operation (the node can later be deleted), so it falls under Write rather than Destructive. The blast radius is medium — an AI agent misusing this could flood the database with spurious articles, but it does not expose financial data or irreversibly destroy information.

From the tool's definition Store a news article node in Neo4j

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

store_news_article Rate-limited

store_news_article 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": {
    "store_news_article": {
      "limits": [
        {
          "counter": "store_news_article_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 Calculator Tools MCP Server, so you can run agents against it safely.

FAQ

Questions about store_news_article

What does the store_news_article tool do? +

Store a news article node in Neo4j. It is categorised as a Write tool in the Calculator Tools 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 store_news_article? +

Register the Calculator Tools MCP Server MCP server in PolicyLayer and add a rule for store_news_article: 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 Calculator Tools MCP Server. Nothing to install.

What risk level is store_news_article? +

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

Can I rate-limit store_news_article? +

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

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

store_news_article is provided by the Calculator Tools MCP Server MCP server (yogeshkk2/mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.