List all Microsoft Teams you are a member of. Returns team names, IDs, and descriptions.
AI agents call teams_list_teams to retrieve information from Microsoft Teams without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and returns team membership information (names, IDs, descriptions) with no ability to modify, delete, or execute operations. It is a straightforward read operation with minimal blast radius if misused by an AI agent — at worst, it exposes the user's team memberships, but causes no harm to data or systems. Confidence is high because the description is explicit and unambiguous.
From the tool's definition Tool name 'teams_list_teams' and description 'List all Microsoft Teams you are a member of. Returns team names, IDs, and descriptions.' — purely retrieves metadata without side effects.
Attacks that exploit this kind of access
List all Microsoft Teams you are a member of. Returns team names, IDs, and descriptions. It is categorised as a Read tool in the Microsoft Teams MCP Server, which means it retrieves data without modifying state.
Register the Microsoft Teams MCP server in PolicyLayer and add a rule for teams_list_teams: 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 Microsoft Teams. Nothing to install.
teams_list_teams 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 teams_list_teams 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 teams_list_teams. 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.
teams_list_teams is provided by the Microsoft Teams MCP server (microsoft-teams-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
teams_list_teams is one line of Microsoft Teams's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
Teams ship this data inside their own products. See what a licence covers →