twitch_get_stream

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

No annotations are provided, so the description carries the burden. It does not disclose authentication requirements (client_id and client_secret in schema but unexplained), what happens if the stream is offline, or any rate limits. Only the basic action is stated.

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 one short sentence with no redundant words. However, it is too brief given the parameter count and missing annotations. Conciseness alone does not compensate for insufficient detail.

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 3 parameters, no output schema, and no annotations. The description does not explain authentication, response format, or error cases. It is incomplete for an agent to reliably invoke this tool.

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%. The description only implicitly covers user_login by mentioning 'by user login'. It does not explain the purpose or format of client_id and client_secret, leaving the agent to guess their importance.

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), resource (specific Twitch stream), and qualifier (by user login). It distinguishes itself from sibling tools like twitch_search_streams (which returns multiple streams) and twitch_get_clips (which returns clips).

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 when you have a user login, but it does not explicitly state when to use this tool over alternatives (e.g., twitch_search_streams for search). No exclusions or context are provided.

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