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by lacausecrypto
OverviewSchemaSourceRelated ServersDiscussionsAdmin
TypeScript
Hybrid

openf1: Get race control

openf1_get_race_control
Read-onlyIdempotent

Retrieve official race control messages for a session, covering flags, safety cars, penalties, and track status changes; filter by flag or category.

Instructions

Get race control messages: flags, safety cars, penalties, track status changes, and other official messages.

Input Schema

NameRequiredDescriptionDefault
flagNoFlag type filter (e.g. 'YELLOW', 'RED', 'GREEN', 'CHEQUERED')
fieldsNoKeys to keep (comma-separated).
categoryNoMessage category filter (e.g. 'Flag', 'SafetyCar', 'Drs')
session_keyYesSession identifier (required)

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed2 schema fields changedv1.4.1
    • removedInput schema / $schema
      Removed value: -"http://json-schema.org/draft-07/schema#"
    • addedInput schema / properties / fields
      Added value: +{
+  "description": "Keys to keep (comma-separated).",
+  "type": "string"
+}
  2. Changed1 schema field changedv1.3.0
    • removedInput schema / additionalProperties
      Removed value: -false
  3. First observedv1.2.0

TDQS

B3.2/5.0
Behavior3/5

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

Annotations already declare readOnlyHint, idempotentHint and openWorldHint, so the safety profile is covered. The description adds only a catalogue of message types and says nothing about return format, pagination, or filtering behavior, so it clears the lower annotated-tool bar without adding much.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

A single front-loaded sentence with no padding, and the resource is named before the content enumeration. Slightly list-heavy but every element 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?

For a four-parameter read tool with no output schema, the description covers what kind of data comes back but omits the required session_key scope and how the filter parameters shape results. Adequate but with visible gaps.

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 description coverage is 100%, so the schema already documents session_key, flag, category and fields, including example values. The description adds no additional parameter meaning (e.g. how flag and category interact), so the baseline 3 applies.

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?

States a specific verb and resource ('Get race control messages') and enumerates the content types (flags, safety cars, penalties, track status), which cleanly separates it from data siblings like openf1_get_laps or openf1_get_car_data. It does not, however, explicitly name a sibling it differs from.

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 gives no when-to-use guidance, no prerequisites (e.g. that a session_key is required), and no steering away from or toward related OpenF1 endpoints. An agent must infer usage entirely from the tool name.

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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