Lists all variables within a specific Keyshade project
AI agents call list_variables to retrieve information from Keyshade without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and enumerates variables from a project without creating, modifying, or deleting any data. It is a pure read operation. Severity is low because listing variables, while potentially exposing configuration data, does not directly enable destructive actions and is a standard read capability in secrets management platforms.
From the tool's definition Tool name 'list_variables' and description 'Lists all variables within a specific Keyshade project' indicate retrieval/querying of data with no side effects.
Documented attack patterns abuse exactly the kind of access list_variables gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Keyshade, and nothing reaches the server without passing your rules. This is the rule we recommend for list_variables:
{
"version": "1",
"default": "deny",
"tools": {
"list_variables": {}
}
}list_variables is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Lists all variables within a specific Keyshade project. It is categorised as a Read tool in the Keyshade MCP Server, which means it retrieves data without modifying state.
Register the Keyshade MCP server in PolicyLayer and add a rule for list_variables: 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 Keyshade. Nothing to install.
list_variables is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the list_variables 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.
Set action: deny in the PolicyLayer policy for list_variables. 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.
list_variables is provided by the Keyshade MCP server (keyshade-xyz/keyshade-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Keyshade, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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44 Keyshade tools catalogued and risk-classified — across an index of 43,000+ MCP servers.