Get a thread with all its messages.
AI agents call keyid_get_thread to retrieve information from KeyID Agent Kit without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves email thread data and messages without modifying, deleting, or executing operations. However, severity is elevated to 'medium' rather than 'low' because email threads may contain sensitive personal, financial, or confidential information. An AI agent with unrestricted access could read private communications, but the tool itself performs no destructive or state-changing actions.
From the tool's definition Tool name 'keyid_get_thread' and description 'Get a thread with all its messages' indicate data retrieval with no modification or deletion. The verb 'Get' is explicitly a Read operation.
Attacks that exploit this kind of access
Get a thread with all its messages. It is categorised as a Read tool in the KeyID Agent Kit MCP Server, which means it retrieves data without modifying state.
Register the KeyID Agent Kit MCP server in PolicyLayer and add a rule for keyid_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 KeyID Agent Kit. Nothing to install.
keyid_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 keyid_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 keyid_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.
keyid_get_thread is provided by the KeyID Agent Kit MCP server (keyid-ai/agent-kit). 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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