list_tabs

List a workspace's tabs (workspace_id or workspace_slug).

SERVERBusymate DevTools SOURCEhttps://mcp.busymate.dev

Low RISK CLASS

Category Read

Parameters 20 required

Recommended Allowedsee the rule below

Registry record Grade D, identity unverified Pull the record →

This record as markdown: /tools/dev-busymate-busymate-devtools/list-tabs.md

WHAT IT DOES

What list_tabs does on Busymate DevTools

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

Parameter	Type	Required	Description
`workspace_id`	string	—
`workspace_slug`	string	—

Parameters from the server's own tool schema.

RISK

Why list_tabs is rated Low

This tool retrieves information about tabs in a workspace without creating, modifying, deleting, or executing anything. It is a straightforward query/read operation with minimal blast radius if misused by an AI agent—it would only expose what tabs exist in a workspace, not cause any side effects or data loss.

From the tool's definition Tool name is 'list_tabs' and description states 'List a workspace's tabs', which is a retrieval operation with no modification or execution of code.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs list_tabs safely

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

list_tabs Allowed

list_tabs 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_tabs": {}
  }
}

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

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

FAQ

Questions about list_tabs

What does the list_tabs tool do? +

List a workspace's tabs (workspace_id or workspace_slug). It is categorised as a Read tool in the Busymate DevTools MCP Server, which means it retrieves data without modifying state.

What parameters does list_tabs accept? +

list_tabs accepts 2 parameters: workspace_id, workspace_slug. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on list_tabs? +

Register the Busymate DevTools MCP server in PolicyLayer and add a rule for list_tabs: 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 Busymate DevTools. Nothing to install.

What risk level is list_tabs? +

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

Can I rate-limit list_tabs? +

Yes. Add a rate_limit block to the list_tabs 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_tabs completely? +

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

list_tabs is provided by the Busymate DevTools MCP server (https://mcp.busymate.dev). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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