Look up dangerous goods (hazmat) information from the ADR 2025 database. ADR is the European agreement for international carriage of dangerous goods by road. This tool searches 2,939 entries covering all 9 hazard classes. Use this tool when you need to: - Find the hazard class, packing group, a...
Single-target operation
Part of the FreightUtils MCP Server MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.
AI agents call adr_lookup to retrieve information from FreightUtils MCP Server without modifying any data. This is common in research, monitoring, and reporting workflows where the agent needs context before taking action. Because read operations don't change state, they are generally safe to allow without restrictions -- but you may still want rate limits to control API costs.
Even though adr_lookup only reads data, uncontrolled read access can leak sensitive information or rack up API costs. An agent caught in a retry loop could make thousands of calls per minute. A rate limit gives you a safety net without blocking legitimate use.
Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.
tools:
adr_lookup:
rules:
- action: allowSee the full FreightUtils MCP Server policy for all 11 tools.
Agents calling read-class tools like adr_lookup have been implicated in these attack patterns. Read the full case and prevention policy for each:
Other tools in the Read risk category across the catalogue. The same policy patterns (rate-limit, allow) apply to each.
Look up dangerous goods (hazmat) information from the ADR 2025 database. ADR is the European agreement for international carriage of dangerous goods by road. This tool searches 2,939 entries covering all 9 hazard classes. Use this tool when you need to: - Find the hazard class, packing group, and labels for a UN number - Search dangerous goods by name (e.g., "petrol", "lithium batteries") - Get tunnel restriction codes and transport categories - Check limited quantity allowances Provide a UN number for exact lookup, or a search term for name-based search.. It is categorised as a Read tool in the FreightUtils MCP Server MCP Server, which means it retrieves data without modifying state.
Add a rule in your Intercept YAML policy under the tools section for adr_lookup. You can allow, deny, rate-limit, or validate arguments. Then run Intercept as a proxy in front of the FreightUtils MCP Server MCP server.
adr_lookup 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 adr_lookup rule in your Intercept 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 Intercept policy for adr_lookup. 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.
adr_lookup is provided by the FreightUtils MCP Server MCP server (freightutils-mcp). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Open source. One binary. Zero dependencies.
npx -y @policylayer/intercept