Perform letter frequency analysis on text.
AI agents call frequency_analysis to retrieve information from Crypto Tools MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs statistical analysis on provided text to extract frequency information. It is purely analytical and informational, returning computed metrics without altering data or triggering external actions.
From the tool's definition Tool name 'frequency_analysis' and description 'Perform letter frequency analysis on text' indicate data retrieval and analysis only.
Attacks that exploit this kind of access
Perform letter frequency analysis on text. It is categorised as a Read tool in the Crypto Tools MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Crypto Tools MCP Server MCP server in PolicyLayer and add a rule for frequency_analysis: 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 Crypto Tools MCP Server. Nothing to install.
frequency_analysis 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 frequency_analysis 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 frequency_analysis. 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.
frequency_analysis is provided by the Crypto Tools MCP Server MCP server (marc-shade/crypto-tools-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
frequency_analysis is one line of Crypto Tools MCP Server's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
Teams ship this data inside their own products. See what a licence covers →