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

The annotations (readOnlyHint=true, openWorldHint=true) cover safety and indicate the tool fetches external data, but the description adds little beyond stating it returns metadata and body paragraphs. It doesn't disclose any authentication needs, rate limits, or other behavioral traits beyond what annotations already convey.

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 a single, efficient sentence with no waste. It is appropriately concise, though it could be more front-loaded with a verb.

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?

Given that an output schema exists, the description needn't explain return values. However, for a tool that fetches article content, the description could specify that it requires a valid article URL and returns parsed content. The current description is minimally complete but lacks important context about the expected input format.

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?

The input schema has one required string parameter 'url' with 0% description coverage. The description does not explain the parameter at all, but since there is only one parameter and its name is self-explanatory, the minimal description is barely adequate. Baseline for 1 parameter with low schema coverage would be lower, but the simplicity keeps it at 3.

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 identifies the resource ('One public Collider article's metadata and body paragraphs') but reads more like a title than a description of an action. It is not a verb-led statement of what the tool does, making it vague about the operation, though it is distinguishable from siblings like collider_headlines.

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 on when or why to use this tool versus alternatives is provided. It doesn't mention that a URL is required, nor does it compare to collider_news or other Collider tools.

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