wave_show_graphic · WAVE MCP Server MCP: Risk & Policy

WHAT IT DOES

What wave_show_graphic does on WAVE MCP Server

AI agents invoke wave_show_graphic to trigger actions in WAVE MCP Server. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why wave_show_graphic needs a policy

This tool controls real-time visual elements on a live production stream. It is not a simple data read or write; it executes an action that immediately affects what viewers see on an active stream. While not destructive or financial, it triggers an external operation with visible real-time consequences, placing it in the Execute category.

From the tool's definition 'Show or hide an HTML5 graphics overlay on a production' — triggers an external operation (displaying/removing a live overlay) on a running production

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

wave_show_graphic Rate-limited

wave_show_graphic stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "wave_show_graphic": {
      "limits": [
        {
          "counter": "wave_show_graphic_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

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

FAQ

Questions about wave_show_graphic

What does the wave_show_graphic tool do? +

Show or hide an HTML5 graphics overlay on a production. It is categorised as a Execute tool in the WAVE MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on wave_show_graphic? +

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

What risk level is wave_show_graphic? +

wave_show_graphic is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit wave_show_graphic? +

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

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

wave_show_graphic is provided by the WAVE MCP Server MCP server (wave-av/mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.