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Crawlora MCP

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futgg_fc27_sbc_set_by_challenge

Retrieve a parent FC27 SBC set by native EA challenge ID, resolving the challenge’s parent set when you need set data rather than a standalone challenge DTO.

Instructions

Read FC27 parent SBC set by EA challenge ID. Uses a native EA challenge identity from challengeEaIds or challenges[].eaId and returns its parent set. This resource does not return a standalone challenge DTO. Database IDs and EA set IDs are different namespaces. No biography, account access or solver execution.

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "id": "<id>"
    },
    "name": "futgg_fc27_sbc_set_by_challenge"
  }
}

Input Schema

NameRequiredDescriptionDefault
idYesPositive EA challenge ID from a native set

Schema Changelog

Changes observed during successful MCP inspections.

  1. Addedv1.17.20

TDQS

A3.5/5.0
Behavior3/5

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

With no annotations supplied, the description carries the full burden; it does establish read-only behavior ('Read'), the ID-namespace hazard, and negative scope ('No biography, account access or solver execution'), which are useful. It stops short of describing the shape or size of the returned parent set (no output schema exists), so an agent still cannot predict the response payload.

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?

Four short sentences, front-loaded with the operation and identifier type, followed by scope caveats and exclusions; nothing is redundant. Slight cost from terse jargon ('parent SBC set', 'DTO') that requires domain fluency, but no padding.

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 single-parameter lookup with no annotations and no output schema, the definition covers input provenance and negative scope adequately. The main residual gap is that the return value ('parent set') is never characterized — fields, nesting, or emptiness behavior — leaving the agent unable to interpret the result.

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 already 100%, so the baseline is 3, but the description adds genuine value beyond the schema by telling the agent where the value comes from ('challengeEaIds or challenges[].eaId') and reinforcing that the ID must come from a native set rather than a database namespace. That provenance guidance meaningfully reduces wrong-ID calls.

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 leads with a specific verb and resource ('Read FC27 parent SBC set by EA challenge ID') and pins the identifier type, so the operation is unambiguous. It clarifies the returned entity is the parent set rather than a standalone challenge DTO, but never names the sibling tools (e.g., the by_ea or by_id variants) it must be distinguished from, so differentiation is only partial.

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?

It states the required identity source ('native EA challenge identity from challengeEaIds or challenges[].eaId') and warns that 'Database IDs and EA set IDs are different namespaces', which implies when this tool is the right choice versus an EA-set-based sibling. However, no explicit when-to-use / when-not-to-use rule or named alternative is given, so the routing decision is left to inference.

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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