Send a broadcast email or push alert to the team (or a subset of members). Real emails/alerts are sent. Preview by default; always requires confirm: true to actually send.
AI agents use teamsnap_send_announcement to create or update resources in TeamSnap MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your TeamSnap MCP Server environment.
While this tool creates reversible communication artifacts (emails/alerts can be deleted or recalled in many systems), its primary effect is sending real messages to team members. This is a Write operation because it creates new data (sent messages) and modifies the state of team communication.
From the tool's definition The tool description explicitly states 'Send a broadcast email or push alert to the team (or a subset of members). Real emails/alerts are sent.' This creates or modifies communication data and delivers messages to multiple recipients as a side effect.
Attacks that exploit this kind of access
Send a broadcast email or push alert to the team (or a subset of members). Real emails/alerts are sent. Preview by default; always requires confirm: true to actually send. It is categorised as a Write tool in the TeamSnap MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the TeamSnap MCP Server MCP server in PolicyLayer and add a rule for teamsnap_send_announcement: 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 TeamSnap MCP Server. Nothing to install.
teamsnap_send_announcement is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the teamsnap_send_announcement 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 teamsnap_send_announcement. 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.
teamsnap_send_announcement is provided by the TeamSnap MCP Server MCP server (mrelph/teamsnapmcp). 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.
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