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bvandevliet

Betaflight MCP

by bvandevliet

set_vbat_cutoff_percent

Set the percentage of voltage sag compensation applied at critically low battery voltage to prevent system resets.

Instructions

Set vbat_cutoff_percent: Percentage of vbat_sag_compensation to apply at critically low voltage. [UINT8, 0–100, default: 100]

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
valueYesValue for vbat_cutoff_percent (UINT8, 0–100)
Behavior2/5

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

Annotations are absent, so the description should disclose behavioral traits. It only states the set operation and parameter info, but lacks details on persistence, side effects, or whether a reboot is required. Minimal transparency beyond the basic action.

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?

Extremely concise: one sentence with parameter name, meaning, range, and default. Front-loaded with the verb 'Set'. No unnecessary words.

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 parameter setter, the description adequately explains the parameter's role and constraints. It lacks information on output or side effects, but given the tool's simplicity and the presence of a getter sibling, it is mostly complete.

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?

The description adds value beyond the schema by explaining the parameter's meaning (percentage of vbat_sag_compensation) and providing the default value. Schema coverage is 100%, so the description enhances understanding.

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 clearly states the tool sets a specific parameter (vbat_cutoff_percent) and defines it as a percentage of vbat_sag_compensation for critically low voltage. It distinguishes from siblings by naming a related parameter but does not explicitly differentiate from other set_vbat_* tools.

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?

No guidance on when to use this tool versus alternatives like set_vbat_sag_compensation or get_vbat_cutoff_percent. No prerequisites or context provided for appropriate use.

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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