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

Annotations already declare readOnly/idempotent/non-destructive, so the safety profile is covered. The description usefully adds that results carry source, date, URL and only permitted excerpts, and that third-party full text and live market data are excluded, but says nothing about pagination, ranking, or empty-result behavior 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 with no filler; the search purpose and scope choice come first, the result-content caveat second. Every clause carries information.

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?

No output schema exists, and the description compensates by enumerating returned fields (source, date, URL, excerpts). Only the limit/pagination behavior is unaddressed, a minor gap for a search endpoint.

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 0%, so the description should compensate, and it does partially by explaining the meaning of the scope enum (all/domestic/global/editorial). It leaves query semantics (min 2, max 120 chars) and the limit parameter (max 50) entirely to the schema.

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+resource ('Search FinPortal's already-stored public records') and a use case (evidence for a topic, event, or company). It implicitly separates itself from live-data siblings by saying 'already-stored' and 'not live market data', but never names which sibling to use for specific news/filings, so differentiation is only partial.

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?

Gives a clear trigger ('when an agent needs evidence for a topic, event, or company') and indicates the four scope modes to choose from. It lacks explicit when-not guidance or routing to specific siblings like get_company_news or get_editorial_article.

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