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servomotor-mcp

firmware_upgrade

Upgrade a servo motor's flash memory by writing a hex-encoded firmware page. Requires valid firmware data and explicit user approval to avoid bricking the motor.

Instructions

This command will upgrade the flash memory of the servo motor. Before issuing a firmware upgrade command, you must do some calculations as shown in the examples. [Firmware command "Firmware upgrade", group: Device Management.] NOTE: Flashes a firmware page (hex-encoded bytes). Wrong data can brick the motor. Only use with a valid firmware file and the user's explicit go-ahead. Parameters:

  • firmwarePage: The data to upgrade one page of flash memory. Contents includes the product model code (8 bytes), firmware compatibility code (1 byte), page number (1 byte), and the page data itself (2048 bytes). Returns: success confirmation. motor: an alias number (e.g. 88), a 16-hex-digit unique ID (e.g. "0123456789ABCDEF"), or "all" to broadcast to every motor on the bus (broadcasts get no responses back).

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
motorYes
firmwarePageYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. Addedv0.3.1

TDQS

A4.2/5.0
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 is destructive ('Wrong data can brick the motor'), requires explicit user consent, and notes that broadcasts get no responses. These are meaningful behavioral disclosures beyond the schema. Minor deduction for not mentioning whether the operation is synchronous/asynchronous or if a reset is required after flashing.

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 fairly dense and includes several pieces of essential information, but the structure is somewhat run-on and mixes high-level guidance with parameter details and a warning. It is front-loaded with the main purpose and the critical warning is clear. A cleaner separation of 'overview/warning' and 'parameters' would improve it, but it avoids non-essential 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?

Given there are 2 required parameters, no output schema, and no annotations, the description must stand alone. It provides the key prerequisites, a clear caution, parameter semantics, and return behavior ('Returns: success confirmation'). It is complete enough for a careful agent, although explicit details on the expected firmware format and the page data size are only partially included (it's stated within parameter semantics, not in a separate format section).

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 coverage is 0%, so the description must compensate for both parameters. It does substantially: it explains that motor can be an alias number, 16-hex-digit ID, or 'all' with the broadcast caveat, and it details the exact composition of firmwarePage (model code 8 bytes, compatibility code 1 byte, page number 1 byte, data 2048 bytes). This adds meaning beyond the bare schema, though the description still lacks some format details (encoding, hex, byte order is partially implied).

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 ('upgrade'), the resource ('flash memory of the servo motor'), and the specific operation (flashing a firmware page). It also includes a note with the command group and instructions to do calculations as shown in examples, which differentiates it from siblings like get_firmware_version or system_reset.

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

Usage Guidelines5/5

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

Explicitly states prerequisites: 'you must do some calculations as shown in the examples', and includes a strong when-not/ caution: 'Only use with a valid firmware file and the user's explicit go-ahead.' It also distinguishes the broadcast behavior ('all' gets no responses back), which helps select this tool appropriately.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.