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

Annotations already declare readOnlyHint=true, idempotentHint=true, destructiveHint=false, and openWorldHint=true, so the safety profile is covered. The description adds one genuinely useful behavioral fact the annotations do not: the call costs 0.3 points. It discloses nothing about pagination or result shape, so a 3 fits.

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?

It is a single short fragment with the cost front-loaded, so nothing is padded. However, the phrase is essentially a title echo, meaning it is terse rather than efficient — brevity at the cost of substance.

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 6 parameters, no output schema, and a crowded sector-tool namespace (sectors_asset, sectors_stock, sectors_stocks, sectors_event, sectors_follow), the description supplies no filtering, paging, or disambiguation context. Annotations cover safety, but the definition leaves an agent unable to confidently place this tool among its siblings.

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 83%, so the schema already documents most parameters (q, limit, stock, offset, sector). The description adds only that results are drugs/products-style assets, which is marginal. Baseline 3 is appropriate when the schema does the heavy lifting.

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 is a bare noun phrase that essentially restates the title 'Tracked assets (drugs, products) of a sector' with no verb (list/fetch). It does not distinguish this tool from close siblings such as sectors_asset, sectors_stock, sectors_stocks, or sectors_event, so an agent cannot tell why the plural 'assets' tool differs from the singular one.

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, when-not-to-use, or alternative-tool guidance anywhere in the text. Given five similarly-named sibling sector tools, the omission of routing guidance is a real gap.

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