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

Annotations already cover read-only, idempotent, non-destructive, so the description doesn't need to restate those. It adds useful behavior: the returned text is written to be read aloud, relay it to the user; returns chat-sized answers plus structured fields for a guide-card UI; and the 'viewed' parameter logs downstream interactions. This adds meaningful context beyond annotations, so a 4 is appropriate.

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 dense and well-organized: a lead sentence about when to call, a paragraph on what it returns, then one line per parameter. Every sentence earns its place, and the most decision-critical guidance is front-loaded. Despite length, it remains scannable and focused.

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 low-complexity, zero-required-param tool with an output schema, the description covers when to use it, how to use the result, and all parameter details. It even anticipates the follow-up ('how do I make this automatic') and routes to the correct sibling. Nothing an agent needs to call it correctly is missing.

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?

Schema description coverage is 0%, so the description must carry the full parameter documentation, and it does. It explains topic with all accepted enum-like values and what each means, tool to scope connect/asset links, and viewed with the valid values ('asset_viewed', 'custom_instructions_copied') plus when to omit it. This fully compensates for the missing schema descriptions.

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 states a specific verb ('get help'), the resource (Vilix guide), and the exact user intents it covers: what Vilix is, how to connect a tool, day-to-day use, and the discount/creator offer. It clearly distinguishes itself from the sibling get_setup_instructions by naming it and explaining the difference.

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?

Explicitly says 'Call this when the user asks...' and lists concrete triggers. It provides a when-not/alternative by directing the user to get_setup_instructions for exact paste-in blocks and says the agent should prefer this help over sending the user to a website. This is exemplary usage guidance.

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