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

No annotations are provided, so the description carries the responsibility. It conveys a read-style retrieval and specifies the returned content areas, which is useful. However, it does not mention not-found behavior, authorization needs, or response format. For a simple one-parameter getter this is acceptable but not fully transparent.

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?

One tight sentence that front-loads the core operation and then lists the key profile contents. There is no filler or redundancy.

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 tool with one required parameter and no output schema, the description gives an agent enough to call it correctly and know what to expect. An explicit pointer to search_builders for slug discovery or a note about missing profiles would improve it, but those are minor gaps.

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%: the only parameter, slug, is described as 'The profile slug from search_builders.' The description reinforces that lookup happens 'by slug' but adds no meaning beyond the schema, so it meets the baseline.

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 and resource: 'One builder profile in full, by slug.' It also enumerates what the profile contains ('what they are building, their links, and their projects'), which distinguishes it from search_builders and get_publication.

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 phrasing 'by slug' and 'One builder profile in full' implies this is the tool to use when you already have a specific builder slug and want the complete profile, as opposed to searching. It does not explicitly name alternatives or exclusion conditions, but the intended context is clear.

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