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

Annotations already declare readOnlyHint=true, destructiveHint=false and openWorldHint=false, so the safety profile is covered. The description adds useful context about the returned content and filter dimensions, but says nothing about pagination (page/perPage exist) or result limits, so it only modestly exceeds the annotations.

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 the purpose front-loaded and filters second; no filler. Brevity works against completeness here, but as a structure/conciseness measure it is efficient.

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 16-parameter tool with no output schema and no per-parameter documentation, the description is far too thin. It omits pagination behavior, sort controls, source-mode branching and the required scope identifiers, leaving an agent unable to call it correctly beyond the simplest case.

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% across 16 parameters, so the description carries the full burden. It only gestures at three filter axes (status, keyword, Domain Rating) and leaves sortBy, sortOrder, pageType, contact, sourceMode, sourceJobId, competitorDomain, pagination and the required projectId/siteId entirely unexplained.

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 ('List') and resource ('link prospects') and adds what the records contain (scores, status, contact). It is clear on its own, but it never distinguishes itself from adjacent siblings such as list_leads or get_prospecting_summary, so an agent must still infer which prospect/lead listing is correct.

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?

The 'Filter by status, keyword, or Domain Rating' clause implies how the tool is used but gives no when-to-use, when-not-to-use, or alternative-tool guidance. Nothing tells the agent whether this or list_leads should be called for a given outreach query.

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