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bvandevliet

Betaflight MCP

by bvandevliet

get_d_max_roll

Read the dynamic damping ceiling for roll (d_max_roll) to check the D value used during fast moves; it must be at least the roll D gain.

Instructions

Get d_max_roll: Dynamic damping ceiling — D value used during fast moves. Must be ≥ d_roll. [UINT8, default: 40]

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Behavior3/5

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

No annotations provided, so the description carries full burden. It describes the value's type (UINT8), default (40), and constraint, but doesn't mention error handling if constraint is violated or any side effects. Adequate but not rich.

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?

Single sentence with no wasted words. All parts serve a purpose: name, definition, constraint, and type/default.

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?

For a simple getter with no output schema, the description explains the purpose, provides a constraint, and specifies the type/default. It lacks broader context about how this parameter fits into the system, but that is acceptable for a parameter retrieval tool.

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?

Zero parameters, so baseline is 4. The description adds useful information about the output value type and default, which goes beyond the schema.

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 tool retrieves 'd_max_roll', defines it as 'Dynamic damping ceiling — D value used during fast moves', and includes a constraint (must be >= d_roll). This distinguishes it from siblings like get_d_roll.

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 gives a constraint ('Must be ≥ d_roll') but no explicit guidance on when to use this tool over other D-related getters. With hundreds of sibling tools, more context on when to query this specific parameter would help.

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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