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gensecaihq

pfSense MCP Server

by gensecaihq

update_firewall_advanced_settings

Idempotent

Modify pfSense firewall optimization, state limits, and packet filtering options, then apply changes instantly.

Instructions

Update firewall advanced settings

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
disablescrubNoDisable packet scrubbing
maximumfragsNoMaximum number of fragment entries
optimizationNoFirewall optimization mode ('normal', 'high-latency', 'aggressive', 'conservative')
disablefilterNoDisable all packet filtering
maximumstatesNoMaximum number of firewall state table entries
bogonsintervalNoBogon network update interval ('monthly', 'never')
apply_immediatelyNoWhether to apply changes immediately
bypassstaticroutesNoBypass firewall rules for traffic on same interface
maximumtableentriesNoMaximum number of table entries for aliases

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Behavior2/5

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

The description provides no behavioral context beyond the verb 'update'. While annotations indicate idempotency and non-destructive nature, the description adds no value such as potential need to apply changes, possible traffic interruption, or how apply_immediately affects behavior. It merely restates what the name already conveys.

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

Conciseness4/5

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

The description is extremely concise with zero wasted words, fitting in a single short sentence. It is front-loaded and easy to parse, though it might be slightly under-specified for a tool with nine parameters, but it avoids unnecessary verbosity.

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

Completeness2/5

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

Given the tool's complexity (9 optional parameters affecting firewall behavior), the description is severely under-specified. It doesn't explain when to use this tool, what the 'advanced settings' encompass, or the operational impact of applying changes. The output schema exists but doesn't compensate for the lack of contextual guidance about usage and effects.

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 additional meaning beyond what the input schema already provides for each parameter. It lists no parameter names or values in the description, relying entirely on the schema.

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

Purpose4/5

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

The description 'Update firewall advanced settings' clearly uses a specific verb ('update') and resource ('firewall advanced settings'), making the tool's purpose immediately understandable. It distinguishes itself from the sibling get_firewall_advanced_settings by implying a write operation, though it doesn't enumerate which settings.

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

Usage Guidelines2/5

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

There is no guidance about when to use this tool compared to alternatives, no mention of prerequisites, and no indication of how it relates to other firewall update tools. The description simply states the operation without any context for appropriate invocation.

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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