Analizar la tendencia de precio de un producto: subiendo, bajando, o estable. Incluye dias consecutivos de cambio y porcentaje de variacion. Ideal para responder "esta subiendo o bajando de precio?" Args: ml_id: ID del producto en Mercado Libre (ej: "MLM31000132")
Part of the PrecioMX - Price Tracker Mexico MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.
AI agents call get_price_trend to retrieve information from PrecioMX - Price Tracker Mexico 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 get_price_trend 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:
get_price_trend:
rules:
- action: allowSee the full PrecioMX - Price Tracker Mexico policy for all 6 tools.
Agents calling read-class tools like get_price_trend 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.
Analizar la tendencia de precio de un producto: subiendo, bajando, o estable. Incluye dias consecutivos de cambio y porcentaje de variacion. Ideal para responder "esta subiendo o bajando de precio?" Args: ml_id: ID del producto en Mercado Libre (ej: "MLM31000132") . It is categorised as a Read tool in the PrecioMX - Price Tracker Mexico MCP Server, which means it retrieves data without modifying state.
Add a rule in your Intercept YAML policy under the tools section for get_price_trend. You can allow, deny, rate-limit, or validate arguments. Then run Intercept as a proxy in front of the PrecioMX - Price Tracker Mexico MCP server.
get_price_trend 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 get_price_trend 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 get_price_trend. 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.
get_price_trend is provided by the PrecioMX - Price Tracker Mexico MCP server (ing-christopherleon/preciomx). 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