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coreyhines

coreyhines/opnsense-mcp

ssh_fw_rule

Create OPNsense firewall rules via SSH, bypassing API issues. Specify interface, direction, protocol, and ports.

Instructions

Create firewall rules via SSH (bypasses API issues)

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
descriptionYes
interfaceNolan
actionNoblock
protocolNoany
source_netNoany
source_portNoany
destination_netNoany
destination_portNoany
directionNoin
ipprotocolNoinet
enabledNo
applyNo
Behavior2/5

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

No annotations are provided, so the description must disclose behavioral traits. It only says 'create via SSH' but omits details like required credentials, potential side effects, or error behavior, leaving significant gaps.

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

Conciseness3/5

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

The description is a single sentence, making it concise, but it lacks structure and does not front-load critical details beyond the basic purpose.

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

Completeness1/5

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

Given the tool's complexity (12 parameters, no annotations, no output schema) and many sibling tools, the description is grossly incomplete. It fails to explain how agents should interact with it, what SSH setup is needed, or what happens after rule creation.

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

Parameters1/5

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

Schema description coverage is 0% and the description does not explain any of the 12 parameters. The agent has no guidance on valid values or how defaults interact, severely hindering correct invocation.

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 verb (create) and resource (firewall rules), and distinguishes from siblings by specifying the method (via SSH) and the context (bypasses API issues).

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?

The phrase 'bypasses API issues' implies use when the API is failing, providing a clear context. However, it does not explicitly state when not to use or list alternatives like mkfw_rule.

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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