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grok_list_models

Lists all available Grok models including chat and video models with their capabilities and input rules to help choose the right model.

Instructions

List all available Grok models (chat + video) and their capabilities.

Shows the chat models and the Grok Imagine video models with their features
and input rules. Use this to understand which model to choose.

Returns:
    Tables of all models with their capabilities.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes
Behavior4/5

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

With no annotations, the description bears full burden. It transparently states the return of 'Tables of all models with their capabilities,' which is adequate for a read-only list tool. No side effects or permissions are needed.

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 three sentences, but the third sentence ('Returns: Tables...') is redundant and could be merged. It is somewhat concise but could be tighter.

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

Completeness5/5

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

Given no parameters and a clear purpose, the description is complete. It specifies the return format (tables with capabilities), and since an output schema exists (per context), the description does not need to detail it further.

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?

No parameters exist, so schema coverage is 100%. Baseline 4 applies as the description does not need to add parameter info.

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 it lists all available Grok models (chat + video) and their capabilities, distinguishing it from sibling tools that use or generate specific models.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description explicitly says 'Use this to understand which model to choose,' providing clear usage guidance. It lacks an explicit when-not-to-use statement but is sufficient for a simple discovery tool.

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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