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bvandevliet

Betaflight MCP

by bvandevliet

set_iterm_relax_cutoff

Set the cutoff frequency for the I-term relax high-pass filter to tune reaction speed: higher for racing, lower for smooth flight. Reduce value to fix bounce-back or post-flip oscillation.

Instructions

Set iterm_relax_cutoff: Cutoff frequency for the I-term relax HP filter. Higher = reacts faster (better for racing). Lower = smoother (better for large/slow builds). Typical ranges: Racing: 30–40, Freestyle 5": 15, 7"+: 10, X-Class: 3–5. If bounce-back or post-flip oscillation persists, step this down: 15→10→7→5. [UINT8, 1–50, default: 15]

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
valueYesValue for iterm_relax_cutoff (UINT8, 1–50)
Behavior3/5

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

No annotations are provided, so the description carries the behavioral transparency burden. It explains the effect of higher vs lower values and gives a troubleshooting scenario, but does not mention side effects, permissions, or that setting takes effect immediately.

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 a single paragraph that is reasonably concise, but could be structured with bullet points for easier scanning. It front-loads the purpose.

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 single-parameter setter with no output schema, the description covers purpose, effect, typical ranges, and a troubleshooting scenario. It is fairly 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?

Schema coverage is 100%, but the description adds meaningful context beyond the schema: typical ranges per flying style and a tuning step-down procedure. This helps the agent select appropriate values.

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 'Set' and the resource 'iterm_relax_cutoff', and explains it is the cutoff frequency for the I-term relax HP filter. This distinguishes it from sibling tools like get_iterm_relax_cutoff and set_iterm_relax.

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 provides typical ranges for different flying styles (Racing, Freestyle, etc.) and a troubleshooting step for bounce-back or oscillation. However, it does not explicitly compare with sibling tools like set_iterm_relax or set_iterm_relax_type.

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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