reference.coverage

Create a coverage and next-best-view report for current image references.

SERVERVisionmcp SOURCEjoshuahickscorp/visionmcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/visionmcp/reference.coverage.md

WHAT IT DOES

What reference.coverage does on Visionmcp

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

RISK

Why reference.coverage is rated Low

The tool reads current image references and produces a coverage/next-best-view report. While 'create' is used, it refers to generating a read-only report/analysis output, not modifying or persisting any data. No side effects are implied.

From the tool's definition "Create a coverage and next-best-view report" — this generates an analytical report from existing image references without modifying data

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs reference.coverage safely

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

reference.coverage Allowed

reference.coverage 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": {
    "reference.coverage": {}
  }
}

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

The button opens the PolicyLayer dashboard: create your workspace, connect Visionmcp, apply this rule, and every reference.coverage call is checked against it from then on.

FAQ

Questions about reference.coverage

What does the reference.coverage tool do? +

Create a coverage and next-best-view report for current image references. It is categorised as a Read tool in the Visionmcp MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on reference.coverage? +

Register the Vision MCP server in PolicyLayer and add a rule for reference.coverage: 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 Visionmcp. Nothing to install.

What risk level is reference.coverage? +

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

Can I rate-limit reference.coverage? +

Yes. Add a rate_limit block to the reference.coverage 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 reference.coverage completely? +

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

reference.coverage is provided by the Vision MCP server (joshuahickscorp/visionmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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