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getxapi

getxapi-mcp

Official

get_user_info_by_id

Read-only

Retrieve Twitter user profile information by providing a numeric user ID, enabling access to user details via the Twitter API.

Instructions

Look up Twitter user profiles by numeric ID via API

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
userIdYesNumeric Twitter user ID.
Behavior3/5

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

The annotation readOnlyHint=true already indicates safe read-only behavior. The description adds the purpose but no additional behavioral details such as data fields returned, rate limits, or authentication requirements.

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 a single concise sentence, front-loaded with the action. It earns its place but could include more context without significant bloat.

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 simple lookup tool with one parameter and an annotation covering safety, the description is minimally complete. However, it lacks information about the return format or example fields, which would help an agent assess the tool's utility.

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 single parameter userId. The description reaffirms 'by numeric ID' but does not add meaning beyond what the schema already 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 action ('Look up'), the resource ('Twitter user profiles'), and the method ('by numeric ID via API'). It distinguishes from sibling tools like get_user_info which may use username-based lookup.

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 implies usage when a numeric user ID is available but does not explicitly state when to use this tool over alternatives like get_user_info or get_user_about. No exclusions or prerequisites are provided.

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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