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Crawlora MCP

Crawlora MCP

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by Crawlora-org
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JavaScript
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nascar_live_feed

Retrieve NASCAR’s current anonymous global session feed while preserving source identity and timestamps; series and historical selectors are not supported.

Instructions

Get NASCAR’s latest published global session feed. Preserves the native anonymous feed and its source identity and timestamps. This resource does not accept series or historical selectors.

Tool call template

This tool declares no required parameters. Add optional parameters from the input schema as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {},
    "name": "nascar_live_feed"
  }
}

Input Schema

NameRequiredDescriptionDefault

No arguments

Schema Changelog

Changes observed during successful MCP inspections.

  1. Addedv1.17.20

TDQS

B3.4/5.0
Behavior3/5

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

With no annotations, the description must carry the behavior burden, and it does disclose useful traits: the feed is 'anonymous' (implying no auth), 'native' and preserves 'source identity and timestamps' (implying raw, unmodified data). It says nothing about response shape, size, pagination, or refresh cadence, which are the remaining gaps for a feed tool.

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?

Three tight sentences with no filler, and the core purpose is front-loaded. Minor redundancy between 'latest published global session feed' and the closing selector disclaimer, but nothing that costs the agent comprehension.

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?

There is no output schema, so the description should convey what the returned feed contains. It gestures at source identity, timestamps, and anonymity, but 'session feed' remains underspecified — an agent cannot tell whether the payload is sessions, drivers, laps, or standings, or how fresh it is.

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?

The tool takes zero parameters, so the baseline is 4 by rule. The description's statement that it accepts no series or historical selectors is technically redundant with an empty schema, which pulls the practical value down slightly.

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 opens with a specific verb and resource ('Get NASCAR's latest published global session feed'), which is far more precise than the bare tool name. The closing sentence carves out scope ('does not accept series or historical selectors'), implying siblings cover those cases without naming them, so differentiation is present but indirect.

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 negative constraint about series and historical selectors gives an agent a reason not to use this tool for those queries, which is real guidance. However, there is no explicit positive when-to-use statement and no named alternative to route to, leaving the agent to infer that nascar_series or nascar_races handle the excluded cases.

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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