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

Annotations already declare read-only, idempotent, non-destructive, and closed-world behavior. The description adds useful context beyond those annotations by clarifying that the example uses dummy local responses, makes no cloud calls, and incurs no generation charges.

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?

Three tightly written sentences front-load the resource and then add only useful constraints: language availability and offline/no-charge behavior. No sentence is wasted.

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?

For a low-complexity, one-parameter tool with annotations and an output schema, the description is complete enough to call correctly. It explains what is retrieved, which languages are supported, and the offline behavior, without needing to restate the output schema.

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?

Schema description coverage is 0%, but the single required `language` parameter has an enum. The description compensates well by explaining that JavaScript maps to a runnable integration example and TypeScript maps to accompanying declarations.

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 states a specific verb and resource: retrieving a runnable JavaScript/Node.js integration example or TypeScript declarations. It clearly identifies the artifact and its scope, though it does not explicitly distinguish itself from sibling tools such as fetch or search.

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?

Usage is implied by the description: retrieve this when an offline JavaScript/TypeScript SDK example is needed. The note that other language SDKs are not released provides a language availability boundary, but there is no explicit when-to-use guidance versus alternatives or sibling tools.

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