v12-dfs

list_slates

Get Slates

List available V12 slates for today. Returns slate IDs, game counts, and lock times.

Responses:

200: Successful Response (Success Response) Content-Type: application/json 422: Validation Error Content-Type: application/json

Example Response:

{
  "detail": [
    {
      "loc": [],
      "msg": "Message",
      "type": "Error Type",
      "ctx": {}
    }
  ]
}

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": "list_slates"
  }
}

Input Schema

Name	Required	Default
`site`	No	fd
`limit`	No
`sport`	No	NBA
`compact`	No
`playable`	No

Schema Changelog

Changes observed during successful MCP inspections.

First observedJun 17, 2026

TDQS

C2.7/5.0

Behavior3/5

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

No annotations are provided, so the description carries the full burden. It implies a read-only operation (list/GET) and mentions response codes, but does not explicitly state that it is read-only or non-destructive. The example response shown is for an error case, not the successful response.

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 moderately concise but includes a large JSON example that is only for an error response, which is not the primary use case. The structure with response sections is helpful but could be more streamlined.

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?

While the description notes the return values (slate IDs, game counts, lock times), it omits important context such as pagination, limit behavior, or the meaning of parameters. With no output schema, more detail on the response structure would be beneficial.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters1/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 0%, and the description provides no explanation for any of the 5 parameters (site, limit, sport, compact, playable). This leaves the agent unable to understand parameter semantics from the description.

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 clearly states it lists available V12 slates for today and returns slate IDs, game counts, and lock times. This is a specific verb+resource combination. However, it does not explicitly distinguish itself from sibling tools like list_contests or get_slate_players.

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?

No guidance is provided on when to use this tool versus alternatives. There is no mention of prerequisites, context, or use 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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