parse_url

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

The description does not reveal any behavioral traits beyond the basic parsing. No mention of side effects (though unlikely), performance, or dependencies. The readOnlyHint is false, but parsing is generally non-modifying, creating a slight inconsistency.

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 extremely concise with one sentence. It front-loads the action and resource, but could benefit from clarifying what 'components' means.

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 the simplicity of the tool, the description lacks information about the return format or components. With no output schema, the agent must infer behavior. The description is insufficient for an agent to fully understand the tool's output.

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 single parameter 'url' is fully described in the schema (100% coverage). The description adds no additional meaning or constraints beyond 'URL to parse'.

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 action 'Parse' and the resource 'URL'. It implies breaking into components, which is distinct from tools like decode_url. However, it does not explicitly differentiate from siblings like 'convert_text_to_*' 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?

No guidance on when to use this tool versus alternatives like decode_url. No description of prerequisites or limitations.

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