This record as markdown: /tools/io-github-kivanccakmak-yaver/epoch.md
What epoch does on Yaver
AI agents call epoch to retrieve information from Yaver without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
input | string | — | Unix timestamp, date string, or 'now' |
Parameters from the server's own tool schema.
Why epoch is rated Low
This is a stateless conversion utility that takes input and returns formatted output. It performs no queries, modifications, deletions, code execution, or financial transactions. It is a simple Read operation with minimal risk.
From the tool's definition Tool description states 'Convert between Unix timestamps and human-readable dates' — a pure data transformation utility with no side effects, data retrieval, or external operations.
Attacks that exploit this kind of access
The rule that runs epoch safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Yaver, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For epoch, this is the rule to start with:
epoch is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Yaver, apply this rule, and every epoch call is checked against it from then on.
Questions about epoch
Convert between Unix timestamps and human-readable dates. It is categorised as a Read tool in the Yaver MCP Server, which means it retrieves data without modifying state.
epoch accepts 1 parameter: input. The full parameter table on this page comes from the server's own tool schema.
Register the Yaver MCP server in PolicyLayer and add a rule for epoch: 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 Yaver. Nothing to install.
epoch 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 epoch 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 epoch. 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.
epoch is provided by the Yaver MCP server (yaver-cli). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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