list_card_spaces

List all Huly card spaces. Returns card spaces sorted by name. Card spaces are containers for cards.

SERVERHuly SOURCEdugynoo/huly-mcp

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/dugynoo-huly-mcp/list-card-spaces.md

WHAT IT DOES

What list_card_spaces does on Huly

AI agents call list_card_spaces to retrieve information from Huly 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_card_spaces is rated Low

This tool retrieves and queries existing card spaces without creating, modifying, deleting, or executing any operations. It is a pure data retrieval function with no side effects, making it a standard Read category tool. The low severity reflects minimal risk even if misused by an AI agent—it can only expose the names and organization of existing card spaces.

From the tool's definition Tool name is 'list_card_spaces' and description states it 'List[s] all Huly card spaces' and 'Returns card spaces sorted by name'.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs list_card_spaces safely

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

list_card_spaces Allowed

list_card_spaces 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_card_spaces": {}
  }
}

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

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

FAQ

Questions about list_card_spaces

What does the list_card_spaces tool do? +

List all Huly card spaces. Returns card spaces sorted by name. Card spaces are containers for cards. It is categorised as a Read tool in the Huly MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_card_spaces? +

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

What risk level is list_card_spaces? +

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

Can I rate-limit list_card_spaces? +

Yes. Add a rate_limit block to the list_card_spaces 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_card_spaces completely? +

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

list_card_spaces is provided by the Huly MCP server (dugynoo/huly-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on Huly, and thousands of servers like it.

This server

All 218 Huly tools →

Across the catalogue

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

Guides

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