list_users

Retrieve users in the Linear workspace

SERVERLinear SOURCE@linear-mcp-server

Low RISK CLASS

Category Read

Parameters 10 required

Recommended Allowedsee the rule below

Registry record Grade D, identity verified Pull the record →

This record as markdown: /tools/linear/list-users.md

WHAT IT DOES

What list_users does on Linear

AI agents call list_users to retrieve information from Linear 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
`query`	string	—	Optional query to filter users by name or email

Parameters from the server's own tool schema.

RISK

Why list_users is rated Low

This tool retrieves or queries user information from the Linear workspace without creating, modifying, or deleting any data. It is purely informational and read-only, making it a Read category tool with low severity since exposure of workspace user lists poses minimal direct risk compared to more privileged operations.

From the tool's definition Tool name 'list_users' and description 'Retrieve users in the Linear workspace' indicate a data retrieval operation with no side effects.

Risk signalsAccepts freeform code/query input (query)

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs list_users safely

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

list_users Allowed

list_users 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_users": {}
  }
}

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

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

FAQ

Questions about list_users

What does the list_users tool do? +

Retrieve users in the Linear workspace. It is categorised as a Read tool in the Linear MCP Server, which means it retrieves data without modifying state.

What parameters does list_users accept? +

list_users accepts 1 parameter: query. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on list_users? +

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

What risk level is list_users? +

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

Can I rate-limit list_users? +

Yes. Add a rate_limit block to the list_users 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_users completely? +

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

list_users is provided by the Linear MCP server (@linear-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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