list_test_variants

List the per-model test variants present for a ticket (test/<ticket>.<model>.test.js) and which model tiers cover it. Reads the project

SERVERFeatureBoard SOURCEhttps://github.com/valentil/featureboard-mcp/releases/download/v0.7/featureboard.plugin

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/ai-featureboard-featureboard/list-test-variants.md

WHAT IT DOES

What list_test_variants does on FeatureBoard

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

RISK

Why list_test_variants is rated Low

This tool retrieves and queries test variant files and their metadata to report on existing test coverage without creating, modifying, deleting, or executing anything. It is purely informational about the project structure. The lowest severity applies since reading test metadata has no blast radius if misused by an AI agent.

From the tool's definition Tool name is 'list_test_variants' and description states 'List the per-model test variants' and explicitly says 'Reads the project'. The verb 'list' and action of reading file metadata with no modification capability indicate a read-only operation.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs list_test_variants safely

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

list_test_variants Allowed

list_test_variants 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": {
    "list_test_variants": {}
  }
}

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

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

FAQ

Questions about list_test_variants

What does the list_test_variants tool do? +

List the per-model test variants present for a ticket (test/<ticket>.<model>.test.js) and which model tiers cover it. Reads the project. It is categorised as a Read tool in the FeatureBoard MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_test_variants? +

Register the FeatureBoard MCP server in PolicyLayer and add a rule for list_test_variants: 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 FeatureBoard. Nothing to install.

What risk level is list_test_variants? +

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

Can I rate-limit list_test_variants? +

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

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

list_test_variants is provided by the FeatureBoard MCP server (https://github.com/valentil/featureboard-mcp/releases/download/v0.7/featureboard.plugin). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on FeatureBoard, and thousands of servers like it.

This server

All 215 FeatureBoard tools →

Across the catalogue

aiva_list_affiliates on AIVA MCP Server →list_circuits on 0gzk →list_agents on 0rca Dojo MCP Server → The MCP Attack Database →

Guides

Roll out MCP under one policy →Data exfiltration →MCP token cost →