get_model_version_by_alias

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

Annotations already declare readOnlyHint=true, so the read-only nature is clear. The description adds that it retrieves a single version by alias but doesn't mention potential errors (e.g., alias not found) or return structure. Adds minimal extra behavioral context.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is short and well-structured as a docstring with an Args section. Every sentence provides value, and the purpose is front-loaded. No wasted words.

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

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

The tool has no output schema, and the description does not describe the return value. For a retrieval tool, hinting at the return structure (e.g., 'returns a model version object') would improve completeness. Input parameters are well-covered, but the overall description is slightly incomplete without return info.

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

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

Input schema has 0% description coverage, so the description fully compensates by explaining each parameter: 'name: Name of the registered model.' and 'alias: The alias assigned to the version, e.g. ''champion''.' This adds clear meaning beyond the schema's property titles.

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

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 ('a model version by its alias'), with an example alias ('champion', 'production'). It distinguishes from sibling tools like get_model_version (by version number) and get_latest_versions (all versions).

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

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

The description implies usage by providing alias examples but does not explicitly state when to use this tool vs alternatives like get_model_version or get_latest_versions. No when-not-to-use guidance is given.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.