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

Annotations already declare readOnlyHint=true and openWorldHint=false, so the safety profile is covered. The description adds genuinely useful behavioral detail beyond that: the payload is Markdown and contains specific sections (why businesses miss calls, handled calls, sample script, captures, FAQs). It omits any note on size, truncation, or auth, so not a 5.

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?

A single sentence, front-loaded with verb+resource, with the content enumeration and the slug-provenance note both earning their place. No filler or restatement of the title.

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?

For a one-parameter read tool with no output schema, the description supplies everything needed: how to obtain the slug and what the returned Markdown contains. 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 coverage is 100% and the schema already gives slug examples ("dentists", "plumbers"), so the baseline is 3. The description adds real value by stating where a valid slug comes from (search_industries), which the schema does not say.

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?

States a specific verb and resource ("Get the full Vocenya page for one industry") and even enumerates the page's sections, which no sibling does. The phrase "one industry" plus the slug provenance cleanly separates it from search_industries, which only locates slugs.

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 tells the agent to "Use a slug from search_industries," which is real routing guidance to the correct sibling. It stops short of stating when not to use this tool or naming the parallel page-getters (get_article, get_service) as alternatives, so it is clear context without exclusions.

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