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

Annotations already establish readOnlyHint=true, destructiveHint=false and openWorldHint=false, so safety is covered. The description earns credit by disclosing the return domain (exactly three status values) — valuable since there is no output schema — but says nothing about whether statuses are terminal or what is returned for a missing request.

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?

A single sentence with zero filler, front-loading the return values and then the provenance of the requestId. Nothing needs trimming.

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 simple read-only single-parameter tool with annotations covering the safety profile, the description supplies the key missing piece: the set of possible return values. Only edge-case behavior (unknown requestId, finality of status) is left unaddressed.

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?

One required parameter (requestId) with 0% schema description coverage, so the description must compensate. It implies the ID comes from a request_intro call, which adds some meaning, but does not state the ID's expected format or behavior when it is unknown.

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 (returns) and resource (status of an introduction request), and enumerates the exact possible values: pending_review, approved, rejected. It also ties the tool to its sibling request_intro, so the agent knows where the requestId originates, though it does not explicitly contrast with search_candidates.

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 phrase 'for a request made with request_intro' implies when to use it (after creating an intro request), but there is no explicit statement of when not to use it or what to do on an invalid/unknown requestId. Usage is inferable rather than spelled out.

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