get_unix_timestamp
AI agents call get_unix_timestamp to retrieve information from Shutter MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves data (the current Unix timestamp) without modifying, deleting, or executing external operations. It is purely informational and necessary for the timelock encryption workflow. No destructive, financial, or code-execution risk is present. The empty description slightly reduces confidence, but the naming and context are clear.
From the tool's definition The tool name 'get_unix_timestamp' indicates a straightforward read operation that retrieves the current time as a Unix timestamp.
Attacks that exploit this kind of access
get_unix_timestamp. It is categorised as a Read tool in the Shutter MCP MCP Server, which means it retrieves data without modifying state.
Register the Shutter MCP server in PolicyLayer and add a rule for get_unix_timestamp: 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 Shutter MCP. Nothing to install.
get_unix_timestamp 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_unix_timestamp 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_unix_timestamp. 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_unix_timestamp is provided by the Shutter MCP server (shutter-network/shuttermcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
get_unix_timestamp is one line of Shutter'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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