Get messages from a Teams conversation/thread. Default: newest-first (latest messages at top). For channels: messages include isThreadReply (true for replies) and threadRootId (ID of the post being replied to). Messages without threadRootId are top-level posts. Use threadRootId to group related m...
AI agents call teams_get_thread to retrieve information from Teams MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This is a read-only operation that retrieves existing messages from Teams threads and channels. While it accesses potentially sensitive communication data (messages may contain confidential information), it performs no writes, deletes, or external actions.
From the tool's definition Tool name 'teams_get_thread' and description state 'Get messages from a Teams conversation/thread' — retrieves message data without modifying or deleting it.
Attacks that exploit this kind of access
Get messages from a Teams conversation/thread. Default: newest-first (latest messages at top). For channels: messages include isThreadReply (true for replies) and threadRootId (ID of the post being replied to). Messages without threadRootId are top-level posts. Use threadRootId to group related messages. Each message includes a. It is categorised as a Read tool in the Teams MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Teams MCP Server MCP server in PolicyLayer and add a rule for teams_get_thread: 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 Teams MCP Server. Nothing to install.
teams_get_thread 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_get_thread 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_get_thread. 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_get_thread is provided by the Teams MCP Server MCP server (m0nkmaster/msteams-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
Teams ship this data inside their own products. See what a licence covers →