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cameronrye

AT Protocol MCP Server

by cameronrye

get_list

Retrieve all users in a specific AT Protocol list by providing its URI.

Instructions

Get the contents of a list, including all users in the list.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
listUriYes
limitNo
cursorNo
Behavior2/5

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

No annotations exist, so the description must disclose behavior. It mentions returning 'all users' but does not explain pagination (despite parameters cursor and limit), rate limits, or authentication needs. The term 'contents' is ambiguous.

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 a single sentence, which is brief but lacks structure. It could be improved by front-loading the purpose and adding a note about pagination without becoming verbose.

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?

With 3 parameters and no output schema or annotations, the description is incomplete. It fails to explain how to handle pagination (cursor/limit) or what the response contains beyond 'users.' An agent would struggle to use this tool effectively.

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 coverage is 0%, and the description adds no meaning to any parameter. It does not explain that listUri identifies the list, limit controls page size, or cursor handles pagination. This forces the agent to guess parameter roles.

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 'Get the contents of a list, including all users in the list,' which specifies the action (get) and the resource (list contents/users). It distinguishes from sibling tools like create_list or add_to_list by focusing on retrieval.

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 (e.g., get_followers, search_posts). It does not mention any prerequisites or limitations, leaving the agent to infer context.

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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