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gensecaihq

pfSense MCP Server

by gensecaihq

manage_ntp_time_server

Add or remove NTP time servers on pfSense by specifying hostname/IP or server ID, with optional prefer and noselect settings.

Instructions

Add or remove an NTP time server

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
typeNoServer type (used for create, e.g., 'server', 'pool', 'peer')
actionYesAction to perform ('create' or 'delete')
preferNoWhether this is a preferred server (used for create)
confirmNoMust be set to True for delete operations. Safety gate for destructive operations.
noselectNoWhether to mark as noselect (used for create)
server_idNoTime server ID (required for delete)
timeserverNoTime server hostname or IP (required for create, e.g., 'pool.ntp.org')
apply_immediatelyNoWhether to apply changes immediately

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 details beyond the annotations. It does not mention that delete operations require the 'confirm' safety gate, that apply_immediately defaults to true, or that removal is destructive. Given the tool's dual create/delete nature, this lack of disclosure is a significant gap.

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 a single, concise sentence that is front-loaded and easy to parse. However, given the tool's two distinct modes (create and delete), it could be better structured to separate the actions without losing conciseness.

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?

With 8 parameters and dual create/delete behavior, a one-sentence description is insufficient. It does not explain which parameters are required for each action (e.g., server_id for delete, timeserver for create) or that confirm must be true for delete. The description relies entirely on the schema for operational context.

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?

The input schema has 100% parameter description coverage, so the baseline is 3. The description adds no additional clarity about parameter semantics; it only summarizes the action. The schema descriptions already cover the create vs. delete parameter usage.

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 uses the specific verb 'Add or remove' and clearly identifies the resource 'NTP time server', distinguishing it from sibling tools like search_ntp_time_servers and get_ntp_settings. It precisely communicates the tool's scope.

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 usage for modifying the NTP server list ('add or remove') but does not explicitly state when to use this tool versus alternatives, nor does it mention exclusions or prerequisites. It leaves the usage context to be inferred.

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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