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

With no annotations provided, the description carries the full burden. It transparently discloses that the tool returns a categorized list with descriptions, coverage, pricing, and available actions, implying a read-only discovery operation. It does not mention potential side effects, but none are expected for a catalog lookup.

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 two sentences, front-loaded with the core purpose, and includes concrete details (76 APIs, 968 endpoints) without any filler. Every sentence earns its place.

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 tool's simplicity (one optional parameter, no output schema) and the absence of annotations, the description fully covers what the tool returns and why to use it. It explains the return content well enough for an agent to decide whether to call this 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 covers 100% of the single optional parameter (category) with an exhaustive enum, so the description adds no additional semantic value. The baseline of 3 is appropriate because the schema already documents the parameter meaning and allowed values.

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 discovers all PulseNetwork verticals and returns a categorized list of 76 APIs with details. It uses a specific verb ('Discover') and resource, and distinguishes itself from the many vertical-specific sibling tools by positioning itself as the entry point to find the right vertical.

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 explicitly says 'Use this to find the right vertical for a task,' providing clear when-to-use guidance. It does not mention when not to use it or name alternatives, but the context of siblings makes this a discovery tool rather than a data-access tool.

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