Formats a number using the locale conventions of a specific European country — correct decimal and thousands separators following Intl.NumberFormat standards. Returns { original, formatted, locale, country_code }. Supports 17 European locales: PT (1.234,56), ES (1.234,56), FR (1 234,56), DE (1.23...
AI agents call format_number_european to retrieve information from Mcp Europe Business without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs data transformation and presentation only. It takes a number and applies locale-specific formatting rules (decimal/thousands separators) without modifying underlying data, creating resources, executing code, deleting anything, or moving money. It is a pure Read operation—retrieves formatting metadata and applies it to display a number correctly.
From the tool's definition Tool name 'format_number_european' and description state it 'Formats a number using the locale conventions of a specific European country' and 'Returns { original, formatted, locale, country_code }'.
Attacks that exploit this kind of access
Formats a number using the locale conventions of a specific European country — correct decimal and thousands separators following Intl.NumberFormat standards. Returns { original, formatted, locale, country_code }. Supports 17 European locales: PT (1.234,56), ES (1.234,56), FR (1 234,56), DE (1.234,56), IT (1.234,56), NL (1.234,56), BE (1.234,56), PL (1 234,56), SE (1 234,56), DK (1.234,56), FI (1 234,56), AT (1.234,56), IE (1,234.56), GR (1.234,56), HU (1 234,56), RO (1.234,56), UK (1,234.56). Use when displaying prices, financial amounts, or numeric data in user-facing applications across multiple European markets. It is categorised as a Read tool in the Mcp Europe Business MCP Server, which means it retrieves data without modifying state.
Register the Mcp Europe Business MCP server in PolicyLayer and add a rule for format_number_european: 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 Mcp Europe Business. Nothing to install.
format_number_european 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 format_number_european 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 format_number_european. 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.
format_number_european is provided by the Mcp Europe Business MCP server (josemvelez78/mcp-europe-business). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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