variable-list

Lists repository, organization, or environment GitHub Actions variables with values and metadata.

SERVERLint SOURCEDave-London/Pare

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/io-github-dave-london-lint/variable-list.md

WHAT IT DOES

What variable-list does on Lint

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

RISK

Why variable-list is rated Low

This tool retrieves and displays GitHub Actions variables, which are primarily read-only operations. No data is created, modified, or deleted. The medium severity reflects that exposed variables could include secrets, API keys, or other sensitive configuration data that an AI agent could extract and exfiltrate, even though the tool itself performs only data retrieval.

From the tool's definition Tool description states it 'Lists repository, organization, or environment GitHub Actions variables with values and metadata.' The word 'Lists' indicates data retrieval with no modification.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs variable-list safely

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

variable-list Allowed

variable-list 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": {
    "variable-list": {}
  }
}

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

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

FAQ

Questions about variable-list

What does the variable-list tool do? +

Lists repository, organization, or environment GitHub Actions variables with values and metadata. It is categorised as a Read tool in the Lint MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on variable-list? +

Register the Lint MCP server in PolicyLayer and add a rule for variable-list: 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 Lint. Nothing to install.

What risk level is variable-list? +

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

Can I rate-limit variable-list? +

Yes. Add a rate_limit block to the variable-list 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 variable-list completely? +

Set action: deny in the PolicyLayer policy for variable-list. 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 variable-list? +

variable-list is provided by the Lint MCP server (Dave-London/Pare). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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