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

Annotations already declare readOnlyHint/idempotentHint/destructiveHint=false, so the safety profile is covered. The description adds genuinely useful context beyond them: the return value is a URL the user must open, and the tool may interactively prompt for a category — a non-obvious behavior for an otherwise stateless read.

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?

Three short sentences, front-loaded with the primary effect (returns the URL). The middle sentence ("the URL is opened by the user; this tool writes nothing itself") is slightly redundant with readOnlyHint but still short and non-repetitive overall.

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 an output schema present, return-value detail is unnecessary, and the description correctly frames the interplay between the tool and the human (URL opened by user, category prompt). The remaining hole is parameter coverage — the unexplained handle parameter leaves an agent unsure how to call it correctly.

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%, so the description carries the full burden, yet it never names either parameter. It gestures at "a chosen technology category" (mapping loosely to vertical_id) but gives no hint about the handle parameter, its required format, or that vertical_id is optional with a fixed enum.

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 gives a specific verb and resource ("Returns the URL ... to start their operational assessment") and clarifies the scope (URL generation, not a write). It does not name or differentiate against siblings such as my_assessment_status or fetch, so an agent must infer the boundary rather than being told it.

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 (call this when the client needs to begin an assessment) and one edge case is handled explicitly: "If no category is given, the tool asks the user to choose one." There is no guidance on when to prefer a sibling like my_assessment_status or describe_platform, and no stated prerequisites.

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