util_open_graph

Extract Open Graph and Twitter card fields to preview how a URL will render in feeds and agents.

SERVERDelx MCP Server SOURCEdelx-mcp-server

Low RISK CLASS

Category Read

Parameters 21 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-davidmosiah-delx-mcp-server/util-open-graph.md

WHAT IT DOES

What util_open_graph does on Delx MCP Server

AI agents call util_open_graph to retrieve information from Delx MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

Parameter	Type	Required	Description
`url`	string	Yes	HTTP or HTTPS URL to fetch
`timeout`	integer	—	Timeout in seconds (1-15)

Parameters from the server's own tool schema.

RISK

Why util_open_graph is rated Low

This tool fetches and reads metadata from a URL (Open Graph/Twitter card tags) with no side effects. It is a pure read/retrieval operation with minimal blast radius if misused.

From the tool's definition Extract Open Graph and Twitter card fields to preview how a URL will render

Risk signalsAccepts URL/endpoint input (url)

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs util_open_graph safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Delx MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For util_open_graph, this is the rule to start with:

util_open_graph Allowed

util_open_graph is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "util_open_graph": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Delx MCP Server, apply this rule, and every util_open_graph call is checked against it from then on.

FAQ

Questions about util_open_graph

What does the util_open_graph tool do? +

Extract Open Graph and Twitter card fields to preview how a URL will render in feeds and agents. It is categorised as a Read tool in the Delx MCP Server MCP Server, which means it retrieves data without modifying state.

What parameters does util_open_graph accept? +

util_open_graph accepts 2 parameters: url, timeout. Required: url. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on util_open_graph? +

Register the Delx MCP Server MCP server in PolicyLayer and add a rule for util_open_graph: 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 Delx MCP Server. Nothing to install.

What risk level is util_open_graph? +

util_open_graph is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit util_open_graph? +

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

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

util_open_graph is provided by the Delx MCP Server MCP server (delx-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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