world

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

With no annotations provided, the description carries full burden for behavioral disclosure. It only mentions that a parameter is optional but doesn't describe what the tool returns, any rate limits, authentication needs, or error conditions. The incomplete sentence further reduces its usefulness.

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 technically short but structurally flawed due to the incomplete sentence. The first part is somewhat useful, but the second part is nonsensical and wastes space without adding value.

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 tool with no annotations and no output schema, the description is insufficient. It doesn't explain what 'world news' means in context of sibling tools, what format results come in, or any operational constraints. The incomplete sentence makes it particularly inadequate.

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 100%, so the schema already documents the 'lr' parameter with an example value. The description attempts to mention an optional parameter but fails to complete the thought, adding no meaningful semantic information beyond what the schema provides.

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 'get world news from Google News' which provides a basic verb+resource combination, but it's incomplete and ends abruptly with 'The optional parameter that can be used is "' without finishing the sentence. This makes it functionally tautological with the tool name 'world' while being grammatically broken.

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?

No guidance is provided about when to use this tool versus the 10 sibling tools listed (business, entertainment, health, etc.). The description doesn't mention any context, prerequisites, or alternatives, leaving the agent with no usage framework.

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