Lista todos los paquetes en la base de datos (disponible en Firebird 3.0+)
AI agents call list-packages to retrieve information from Mcp Firebird without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves metadata about database packages without modifying, deleting, or executing any operations. It is a passive read-only query, consistent with Firebird's introspection capabilities. The presence of other similar describe/analyze tools on the server (describe-package, describe-procedure, describe-table, analyze-query-performance) confirms this is in the informational category.
From the tool's definition Tool name 'list-packages' and description 'Lista todos los paquetes en la base de datos' (Lists all packages in the database) indicates a query/retrieval operation with no side effects.
Attacks that exploit this kind of access
Lista todos los paquetes en la base de datos (disponible en Firebird 3.0+). It is categorised as a Read tool in the Mcp Firebird MCP Server, which means it retrieves data without modifying state.
Register the Mcp Firebird MCP server in PolicyLayer and add a rule for list-packages: 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 Firebird. Nothing to install.
list-packages 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 list-packages 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 list-packages. 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.
list-packages is provided by the Mcp Firebird MCP server (mcp-firebird). 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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