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

Annotations already declare readOnlyHint=true, openWorldHint=true and destructiveHint=false, so the safety profile is covered. The description adds meaningful context beyond that: results are real AD/STC records plus anonymized buyer-sourced items, and it flags that nothing is persisted until add_diligence_item is called. Return format is left to the output schema.

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 dense sentence describing the content of the suggestions, followed by a short actionable instruction. The purpose is front-loaded and nothing is wasted, though the single sentence is slightly list-heavy.

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 read-only suggestion tool with an output schema that carries the return shape, the description supplies the essential missing pieces: what the suggestions contain, their provenance, and the next step. Only the report_id semantics remain underspecified.

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?

There is a single required parameter (report_id) at 0% schema description coverage. The description implicitly ties it to 'a report's diligence checklist', making its meaning evident, but it never states the expected identifier format or where to obtain it. With one mostly self-evident parameter, this is adequate but not additive.

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 states a specific verb (suggest) and resource (additional pre-buy checklist items) and spells out exactly what the suggestions are drawn from: real Airworthiness Directives / STCs for the make/model not yet on the checklist, plus anonymized items other buyers added for similar aircraft. This distinguishes it clearly from siblings like generate_diligence_checklist and search_airworthiness_directives.

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?

It gives clear context for when to call it (to enrich an existing report's diligence checklist) and points to the follow-up action, add_diligence_item with source 'rag'. It does not state explicit exclusions or when a plain checklist lookup is preferable, but the usage context is unambiguous.

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