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

Annotations already declare readOnlyHint=true, idempotentHint=true, openWorldHint=false, and destructiveHint=false, so the safety profile is covered. The description adds useful domain scope and return behavior by saying it returns ids for get_topic, but it does not describe ranking, pagination, result limits, or matching 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?

The description is front-loaded with the action and resource, then lists concrete content categories with compact examples. Every sentence carries information, and there is no redundant restatement of the tool name or annotations.

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 two-parameter search tool with annotations covering safety and no output schema, the description is largely complete: it states the search domain, examples of query content, and that results are ids for get_topic. The main missing piece is explicit guidance on when to choose this search tool over sibling search tools.

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 50%: the language parameter is well documented in the schema, including enum values and English fallback behavior, while the query parameter has no schema description. The description partially compensates by giving examples of acceptable query types, such as 'prodigal son' and 'forgiveness,' but does not explain matching semantics or whether search is fuzzy, exact, or keyword-based.

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 uses a specific verb and resource: it searches study material and enumerates concrete content types such as Bible stories, themes, prophecies, gospel parallels, and timeline events. It also names the follow-up tool, get_topic, which clarifies output purpose, though it does not explicitly distinguish itself from sibling search tools like search_bible or search_people.

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?

Usage is implied by the phrase 'Returns ids for get_topic,' which signals a two-step workflow: search here, then retrieve details with get_topic. However, there is no explicit guidance about when to use this instead of search_bible, search_people, or other sibling search tools, and no exclusions are stated.

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