Low Risk

render_html_page

Render a self-contained themed HTML page from body content. No Docker required. Wraps your HTML in a design system with typography, depth tiers, cards, grids, KPIs, badges, and section navigation. IMPORTANT: body_html is the INNER content only — do NOT include <html>, <head>, or <body> tags. Use ...

Part of the Mcp Media Forge server.

render_html_page is read-only, but an agent in a loop can still rack up calls and cost. PolicyLayer caps every call before it runs. Live in minutes.

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AI agents call render_html_page to retrieve information from Mcp Media Forge without modifying any data. This is common in research, monitoring, and reporting workflows where the agent needs context before taking action. Because read operations don't change state, they are generally safe to allow without restrictions -- but you may still want rate limits to control API costs.

Even though render_html_page only reads data, uncontrolled read access can leak sensitive information or rack up API costs. An agent caught in a retry loop could make thousands of calls per minute. A rate limit gives you a safety net without blocking legitimate use.

Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "render_html_page": {}
  }
}

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Get this rule live on your own Mcp Media Forge server in minutes. PolicyLayer enforces it on every call, before it runs.

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These attack patterns abuse exactly the kind of access render_html_page gives an agent. Each links to the full case and the policy that stops it:

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Every attack above starts with a tool call. PolicyLayer checks each one against your policy first, so render_html_page only ever does what you allow.

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Other read tools across the catalogue. The same approach applies to each: allow, with a rate cap to control cost.

What does the render_html_page tool do? +

Render a self-contained themed HTML page from body content. No Docker required. Wraps your HTML in a design system with typography, depth tiers, cards, grids, KPIs, badges, and section navigation. IMPORTANT: body_html is the INNER content only — do NOT include <html>, <head>, or <body> tags. Use mf- prefixed CSS classes: mf-hero, mf-elevated, mf-card, mf-grid, mf-kpi, mf-badge-success, etc. Themes: swiss (clean docs), midnight (presentations), warm (reports), terminal (dev content). Call get_tool_guide('html_page') for design system reference and examples.. It is categorised as a Read tool in the Mcp Media Forge MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on render_html_page? +

Register the Mcp Media Forge MCP server in PolicyLayer and add a rule for render_html_page: 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 Mcp Media Forge. Nothing to install.

What risk level is render_html_page? +

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

Can I rate-limit render_html_page? +

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

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

render_html_page is provided by the Mcp Media Forge MCP server (mcp-media-forge). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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