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

No annotations are present, so the description carries the full burden of behavioral disclosure. It does not mention that unrelated schema fields are ignored, whether any network or disk access occurs, or what happens for invalid GitHub URLs.

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, front-loaded sentence with no redundant words. It efficiently conveys the core purpose.

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 a nine-parameter schema with many irrelevant fields and no output schema, the one-sentence description is insufficient for an agent to know which fields to populate and what result to expect. It lacks guidance about return shape or error behavior.

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 schema covers 100% of parameters, but most parameters (city, feed, json, path, zone, query) are unrelated to parsing a GitHub URL despite having plausible descriptions. The main description does not identify `url` as the key input or explain the role of the other optional fields.

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 'Parse owner and repo from a GitHub URL' states a specific verb, object, and input source. It clearly distinguishes this tool from sibling URL/shape tools.

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 owner/repo extraction from a GitHub URL is needed. However, it does not explicitly state when to prefer this tool over alternatives such as normalize-url or jira-key-shape, nor does it provide exclusion conditions.

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