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 genuine value by disclosing the return shape (pages with passages, each page's name and Markdown address), but says nothing about result limits, ranking, pagination, or empty-result behavior.

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 compact sentence with a colon-delimited expansion of the return payload; nothing is wasted and the verb leads. The colon construction is slightly dense but front-loads the purpose effectively.

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?

With no output schema, the description does cover the essential return shape, which is the minimum. What is missing for completeness is the relationship to toolaby_docs, query-matching semantics, and any result-size or pagination behavior.

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% and the single 'query' parameter is undocumented in both schema and description; the phrase 'passages that match' weakly implies free-text matching. With only one simple string parameter and no syntax constraints (minLength 1, maxLength 200) surfaced, the gap is modest but real.

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 (Searches) and resource (Toolaby's docs) and even sketches the result shape (matching pages and passages, name plus Markdown address). It does not, however, distinguish this from the sibling toolaby_docs, leaving the agent to guess which one to pick.

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?

There is no when-to-use guidance, no alternative named, and no note that a sibling tool (toolaby_docs) exists. The description never says whether this is for free-text lookup, exact-match lookup, or how it differs from browsing docs directly.

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