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gensecaihq

pfSense MCP Server

by gensecaihq

search_nat_outbound_mappings

Read-only

Search outbound NAT mappings on pfSense with filters for interface, source, destination, and pagination to find specific rules quickly.

Instructions

Search outbound NAT mappings with filtering and pagination

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
pageNoPage number for pagination
sort_byNoField to sort by (interface, source, destination, target, etc.)interface
interfaceNoFilter by interface (wan, lan, opt1, etc.)
page_sizeNoNumber of results per page
search_termNoGeneral search across mapping description/source/destination (client-side filter)

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already declare readOnlyHint=true and destructiveHint=false, covering the safety profile. The description adds 'filtering and pagination,' which is already evident from the schema and parameter names, providing minimal additional behavioral context.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single, front-loaded sentence with no wasted words. It immediately states the verb and resource, followed by key capabilities.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

The tool is a straightforward read-only search operation. Annotations cover safety, the output schema exists, and all parameters have descriptions. The description is sufficiently complete for this simple tool.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, so the baseline is 3. The description does not add any parameter-specific semantics beyond what the schema already provides; 'filtering and pagination' is only a high-level summary.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool searches outbound NAT mappings, using a specific verb and resource. It distinguishes itself from sibling tools like search_nat_port_forwards and search_nat_onetoone_mappings by naming the exact resource type.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description implies the tool is for searching outbound NAT mappings with filtering and pagination, but does not explicitly state when to use it over alternatives or mention any exclusions. No alternative tools are referenced.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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