Adjust a date to a business day under an ISDA convention and holiday calendar. Business days pass through unchanged. modified-following falls back to preceding rather than leave the month (the bond-market default). Deterministic.
AI agents call adjust_date to retrieve information from Shikamaru without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool reads calendar and convention data and returns a computed result (an adjusted date). It has no side effects, does not persist changes, does not execute arbitrary operations, and does not move money. The 'adjusted' action refers to date arithmetic within the tool's parameters, not modification of underlying data. It is a pure mathematical/lookup function, categorizing as Read.
From the tool's definition Tool name 'adjust_date' and description states it 'adjust[s] a date' under ISDA convention and holiday calendar.
Attacks that exploit this kind of access
Adjust a date to a business day under an ISDA convention and holiday calendar. Business days pass through unchanged. modified-following falls back to preceding rather than leave the month (the bond-market default). Deterministic. It is categorised as a Read tool in the Shikamaru MCP Server, which means it retrieves data without modifying state.
Register the Shikamaru MCP server in PolicyLayer and add a rule for adjust_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 Shikamaru. Nothing to install.
adjust_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 adjust_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 adjust_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.
adjust_date is provided by the Shikamaru MCP server (JayOfemi/shikamaru). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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