AI agents call linear_getTeamMemberships to retrieve information from Linear without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves team membership information from Linear's project management system. It performs a read-only query operation that does not create, modify, delete, or execute any actions. The blast radius of misuse is minimal—exposure of team membership information is a data confidentiality risk but not a system-wide threat.
From the tool's definition Tool name 'linear_getTeamMemberships' uses 'get' verb and description states 'Get team memberships', indicating data retrieval with no modification or side effects.
Documented attack patterns abuse exactly the kind of access linear_getTeamMemberships gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Linear, and nothing reaches the server without passing your rules. This is the rule we recommend for linear_getTeamMemberships:
{
"version": "1",
"default": "deny",
"tools": {
"linear_getTeamMemberships": {}
}
}linear_getTeamMemberships is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get team memberships. It is categorised as a Read tool in the Linear MCP Server, which means it retrieves data without modifying state.
Register the Linear MCP server in PolicyLayer and add a rule for linear_getTeamMemberships: 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.
linear_getTeamMemberships 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 linear_getTeamMemberships 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 linear_getTeamMemberships. 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.
linear_getTeamMemberships is provided by the Linear MCP server (tacticlaunch/mcp-linear). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 182 Linear tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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182 Linear tools catalogued and risk-classified — across an index of 42,500+ MCP servers.