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mcp-opnsense

by itunified-io

opnsense_firmware_check

Triggers a background firmware repository check to refresh the cached upgrade status. Call 'opnsense_firmware_status' afterward.

Instructions

Trigger a background firmware repository check to refresh the cached upgrade status. After calling this, wait briefly and then call 'opnsense_firmware_status' to see fresh upgrade info.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Implementation Reference

  • Handler for the opnsense_firmware_check tool. It sends a POST request to /core/firmware/check to trigger a background firmware repository check, refreshing the cached upgrade status.
    case "opnsense_firmware_check": {
      const result = await client.post("/core/firmware/check");
      return { content: [{ type: "text", text: JSON.stringify(result, null, 2) }] };
    }
  • Tool definition with name 'opnsense_firmware_check' and an empty input schema (no parameters required).
    {
      name: "opnsense_firmware_check",
      description:
        "Trigger a background firmware repository check to refresh the cached upgrade status. After calling this, wait briefly and then call 'opnsense_firmware_status' to see fresh upgrade info.",
      inputSchema: { type: "object" as const, properties: {} },
    },
  • src/index.ts:66-66 (registration)
    Registration of all firmware tool definitions (including opnsense_firmware_check) into the toolHandlers map, mapping each tool name to the handleFirmwareTool handler function.
    for (const def of firmwareToolDefinitions) toolHandlers.set(def.name, handleFirmwareTool);
  • The post() method on OPNsenseClient is used by the handler to make the POST request to /core/firmware/check.
    async post<T>(path: string, data?: unknown): Promise<T> {
      try {
        const response = await this.http.post<T>(path, data ?? {}, {
          headers: { "Content-Type": "application/json" },
        });
        return response.data;
      } catch (error: unknown) {
        throw extractError(error, `POST ${path}`);
      }
    }
Behavior4/5

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

With no annotations, the description carries the full burden. It discloses that the operation triggers a background check, is non-blocking, and requires a wait. While it doesn't detail side effects or error scenarios, for a simple trigger tool, this is sufficient.

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 two sentences long, front-loads the action, and contains no redundant information. Every sentence adds value.

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?

Given the tool has no parameters, no output schema, and no annotations, the description covers all necessary information: what it does, that a wait is needed, and what to call next. It is complete for a simple trigger 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?

The input schema has no parameters, so schema description coverage is 100%. The description does not need to explain parameters, but it also adds no additional parameter context. Baseline 3 is appropriate.

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 'Trigger' and the resource 'background firmware repository check'. It distinguishes itself from sibling firmware tools by specifying that it refreshes the cached upgrade status, and it suggests following up with 'opnsense_firmware_status'.

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 description explicitly instructs to wait briefly after calling this tool and then call 'opnsense_firmware_status' to see fresh upgrade info. This provides a clear usage sequence, though it does not explicitly mention when not to use it.

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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