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

No annotations exist, so the description carries the full burden, and it does disclose the return shape (slug, name, tagline, category, detail page URL) which is genuinely useful given there is no output schema. It says nothing about result ordering, matching behavior (exact vs fuzzy), pagination, or empty-result handling, which are the open behavioral questions for a search tool.

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?

Two tight sentences, front-loaded with the search scope and followed by the return fields. No filler or restatement of the name.

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 simple three-parameter search with full schema coverage, the definition covers purpose and return fields adequately. The only meaningful gap is the absence of any ranking or matching-behavior note, which matters somewhat for a keyword search 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?

Schema description coverage is 100%, so all three parameters (query, limit, category) are already documented in the schema, including the category slug enum values. The description adds no syntax or format detail beyond the schema, so baseline 3 applies.

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 (Search) plus resource (VaneTools curated prompt library) and enumerates the domains covered, so the agent knows this targets prompts rather than servers, plugins, or resources. It stops short of explicitly contrasting itself with siblings like search_resources or search_tools, but the 'prompt library' scope is distinctive enough for correct selection.

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?

No guidance on when to use this versus the six sibling search tools, no prerequisites, and no exclusions. The agent must infer that this is the prompt-domain search purely from the resource noun.

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