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ellettie

iRacing MCP Server

pit_command

Apply pit stop commands to an iRacing car, such as refueling, tire changes, or fast repairs. Requires prior pit service status check.

Instructions

apply pit command. before apply pit command, you should call get_current_pit_service_status.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
commands_and_valuesYespit commands. before apply pit command, you should call get_current_pit_service_status.

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes
Behavior1/5

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

No annotations are provided, and the description discloses no behavioral traits. It does not indicate whether the tool is destructive, idempotent, or what side effects it has. The schema enums suggest mutations, but no confirmation.

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 extremely short (two sentences) but lacks clarity. It is concise but at the expense of conveying necessary information. Front-loading is minimal.

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

Completeness2/5

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

Given that this is a mutation tool with many enum options and an output schema exists, the description is incomplete. It fails to explain the effects of each command or what the output contains, leaving the agent underinformed.

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 100%, so the schema already documents the parameter adequately. The description adds no additional meaning beyond repeating the prerequisite advice already in the parameter description.

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

Purpose2/5

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

The description 'apply pit command' is vague and tautological. It does not explain what a pit command is or what the tool accomplishes. The enum in the schema suggests specific actions, but the description fails to convey that.

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 includes a clear prerequisite: call get_current_pit_service_status before using this tool. However, it provides no guidance on when to use this tool versus alternatives, or when not to use it.

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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