AI agents call get_inbox to retrieve information from Repsona without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and retrieves inbox data. It performs a read-only operation without creating, modifying, deleting, or executing any actions. The Japanese description confirms it simply 'gets' the user's inbox, making it a classic Read category tool with low severity risk.
From the tool's definition Tool name 'get_inbox' and description '自分の受信トレイを取得します' (retrieves one's inbox) indicate data retrieval with no modification or side effects.
Attacks that exploit this kind of access
自分の受信トレイを取得します. It is categorised as a Read tool in the Repsona MCP Server, which means it retrieves data without modifying state.
Register the Repsona MCP server in PolicyLayer and add a rule for get_inbox: 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 Repsona. Nothing to install.
get_inbox 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_inbox 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_inbox. 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_inbox is provided by the Repsona MCP server (@bellx2/repsona-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
get_inbox is one line of Repsona's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
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