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itunified-io

mcp-opnsense

by itunified-io

opnsense_fw_reorder_rules

Move a firewall rule to a new sequence position to control evaluation order. Lower sequences are evaluated first, enabling whitelist-before-deny setups.

Instructions

Change the sequence (ordering) of a firewall filter rule by UUID. Rules with lower sequence values are evaluated first. Use this to enforce whitelist-before-deny ordering. Run opnsense_fw_apply afterwards to activate.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
uuidYesUUID of the rule to reorder
sequenceYesNew sequence value (positive integer). Lower values are evaluated first.
Behavior3/5

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

No annotations provided, so description must convey behavior. It explains that sequence determines evaluation order and that apply is needed, but doesn't cover potential side effects, constraints on sequence values, or other behavioral traits.

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?

Two short sentences, front-loaded with action and purpose. Every sentence is necessary and no filler.

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

Completeness4/5

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

For a simple tool with only two parameters and no output schema, the description covers the core functionality and required follow-up. Minor gaps in error handling or sequence conflict info, but still complete for most use cases.

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?

Input schema has 100% coverage with clear parameter descriptions. The description adds context about sequence meaning (lower=first), but no further semantic value beyond the schema.

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 it changes the sequence of firewall filter rules by UUID, explaining that lower values are evaluated first. This distinguishes it from sibling tools like add, delete, update, or toggle rules.

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

Usage Guidelines4/5

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

Provides explicit usage scenario: 'enforce whitelist-before-deny ordering' and instructs to run opnsense_fw_apply afterwards. Does not explicitly mention when not to use, but gives clear context.

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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