AI agents call end_of_period to retrieve information from TinyFn without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
period | string | — | Period: year, month, week, day, hour |
datetime_str | string | Yes | Datetime in ISO format |
Parameters from the server's own tool schema.
This tool retrieves or calculates temporal information (the end date/time of a period) without modifying state, executing external code, or causing irreversible changes. It is a pure computation function typical of a utility library, matching the Read category precisely.
From the tool's definition Tool description states 'Get the end of a time period' — a retrieval/query operation with no side effects.
Attacks that exploit this kind of access
Get the end of a time period. It is categorised as a Read tool in the TinyFn MCP Server, which means it retrieves data without modifying state.
end_of_period accepts 2 parameters: period, datetime_str. Required: datetime_str. The full parameter table on this page comes from the server's own tool schema.
Register the TinyFn MCP server in PolicyLayer and add a rule for end_of_period: 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 TinyFn. Nothing to install.
end_of_period 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 end_of_period 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 end_of_period. 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.
end_of_period is provided by the TinyFn MCP server (https://api.tinyfn.io/mcp/all/). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
end_of_period is one line of TinyFn'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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