Get all chats with unread messages, including their latest messages.
AI agents call get_unread_chats to retrieve information from Bluebubbles without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves existing message data without creating, modifying, deleting, or executing any operations. It has no side effects and presents minimal risk even if misused by an agent—the worst outcome is exposure of already-existing chat metadata that the authorized user could already access. Classified as Read with low severity.
From the tool's definition Tool name is 'get_unread_chats' and description states 'Get all chats with unread messages, including their latest messages.' The verb 'Get' and action of retrieving/querying chat data with no modification capability indicate a read-only operation.
Attacks that exploit this kind of access
Get all chats with unread messages, including their latest messages. It is categorised as a Read tool in the Bluebubbles MCP Server, which means it retrieves data without modifying state.
Register the Bluebubbles MCP server in PolicyLayer and add a rule for get_unread_chats: 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 Bluebubbles. Nothing to install.
get_unread_chats 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 get_unread_chats 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 get_unread_chats. 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.
get_unread_chats is provided by the Bluebubbles MCP server (metaember/bluebubbles-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.
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