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yooitsgreg

sleeper-mcp

by yooitsgreg

Get League Traded Picks

sleeper_get_league_traded_picks
Read-onlyIdempotent

Retrieve all traded draft picks in a Sleeper fantasy league across all seasons, showing each pick's season, round, original owner, and current owner.

Instructions

Get all traded draft picks in a Sleeper fantasy league (across all seasons).

Args:

  • league_id (string): The Sleeper league ID

Returns: All traded picks with season, round, original owner, and current owner.

Examples:

  • "What draft picks have been traded in league 123456?"

  • "Which future picks does roster 3 own?"

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
league_idYesSleeper league ID
Behavior3/5

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

Annotations already declare readOnlyHint, openWorldHint, idempotentHint, and destructiveHint. The description adds the return fields (season, round, original owner, current owner) but does not disclose additional behavioral traits like error handling or rate limits.

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?

The description is well-structured with a purpose sentence, Args, Returns, and Examples sections. It is clear but slightly redundant because Args/Returns repeat schema info. Overall concise for a simple tool.

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

Completeness4/5

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

For a simple read-only tool with one parameter, the description adequately covers return fields and provides examples. It lacks error conditions or distinction from a similar sibling tool, but given low complexity, it is sufficiently complete.

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% for the lone parameter 'league_id', and the description repeats the same meaning. The examples provide usage context but no additional semantic detail beyond what the schema provides.

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

Purpose5/5

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

The description clearly states the verb 'Get' and the resource 'all traded draft picks in a Sleeper fantasy league (across all seasons)', which is specific and distinguishes it from siblings like sleeper_get_draft_picks.

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 provides examples that imply usage contexts (e.g., 'What draft picks have been traded in league 123456?') but does not explicitly state when to use this tool versus alternatives like sleeper_get_draft_traded_picks, leaving some ambiguity.

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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