Shorten Multiple URLs

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

No annotations are provided, so the description carries the burden. It discloses the 500-item limit and optional custom slug, but does not address error handling, partial failures, idempotency, or authentication requirements. Some behavioral context is added, but not comprehensive.

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 communicates the core action and key limit efficiently.

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 schema provides detailed input information, and the description conveys the batch scope. However, with no output schema, the description does not mention the return format or potential error behavior, leaving minor gaps for a batch creation 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?

The input schema already provides 100% coverage of parameter descriptions (links, url, slug). The description only reiterates the optional slug, adding no significant semantic value beyond what the schema already states.

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 tool creates multiple short URLs at once, using the specific verb 'Create' and resource 'short URLs'. It distinguishes itself from the sibling 'shorten_url' by emphasizing 'Multiple' and 'up to 500'.

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 batch usage via 'at once' and 'up to 500', but does not explicitly mention the singular alternative 'shorten_url' or provide when-not-to-use guidance. The usage context is implied rather than directly stated.

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