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Glama

get_device_parameters

Get complete parameter info (name, value, min, max) for any device by specifying its track index and device index.

Instructions

Read all parameters for a device on a track (name, value, min, max).

Parameters:

  • track_index: Track that owns the device

  • device_index: Index into the track's device chain

  • user_prompt: The original user prompt that led to this tool call (for telemetry)

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
track_indexYes
user_promptNo
device_indexYes

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv1.4.0

TDQS

B3.2/5.0
Behavior2/5

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

With no annotations provided, the description must carry the full behavioral burden. It only states that it reads parameters, implying no side effects, but it does not disclose behavior for invalid indices, missing devices, or return structure. There is no contradiction with annotations (none exist), but the disclosure is minimal and lacks error-handling context.

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 concise and front-loaded: the core purpose is stated in the first sentence, followed by a clean parameter list. There is no redundant or verbose language; every sentence earns its place.

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

Completeness3/5

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

Given the tool's simplicity and the existence of an output schema, the description covers the essential parameters and purpose. However, it omits any mention of failure modes (invalid indices) or return format, relying on the output schema (which is not detailed). With no annotations, this is a moderate gap, making it barely adequate.

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

Parameters4/5

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

Schema description coverage is 0%, so the description compensates well by explaining each parameter: track_index (owner track), device_index (index into device chain), and user_prompt (telemetry). This adds meaning beyond the bare schema and clarifies the purpose of each argument, though it stops short of describing value formats or constraints.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description states a clear verb ('Read') and resource ('all parameters for a device on a track') and enumerates the kind of data returned (name, value, min, max). It is specific and unambiguous, but it does not explicitly differentiate from sibling tools like get_track_info or set_device_parameter beyond the verb itself, which is implicit rather than stated.

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

Usage Guidelines2/5

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

The description provides no guidance on when to use this tool versus alternatives. It does not mention that this is a read-only operation suited for inspection, nor does it contrast with set_device_parameter or get_track_info. The user must infer usage from the verb and parameters alone.

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