Get current date from the ledger, and return it as a string.
AI agents call beancount_current_date to retrieve information from Beancount without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a read-only query to retrieve the current date from a Beancount ledger. It has no side effects, does not modify data, and does not execute arbitrary code or trigger external operations. The action is purely informational retrieval, making it a Read category tool with low severity.
From the tool's definition Tool name 'beancount_current_date' and description 'Get current date from the ledger, and return it as a string' indicate a simple read operation that retrieves and returns data without modification.
Documented attack patterns abuse exactly the kind of access beancount_current_date gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Beancount, and nothing reaches the server without passing your rules. This is the rule we recommend for beancount_current_date:
{
"version": "1",
"default": "deny",
"tools": {
"beancount_current_date": {}
}
}beancount_current_date is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get current date from the ledger, and return it as a string. It is categorised as a Read tool in the Beancount MCP Server, which means it retrieves data without modifying state.
Register the Beancount MCP server in PolicyLayer and add a rule for beancount_current_date: 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 Beancount. Nothing to install.
beancount_current_date 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 beancount_current_date 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 beancount_current_date. 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.
beancount_current_date is provided by the Beancount MCP server (stdioa/beancount-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Beancount, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
6 Beancount tools catalogued and risk-classified — across an index of 43,000+ MCP servers.