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

Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, so the safety profile is covered. The description adds only the 'visible' scoping qualifier; it says nothing about pagination behavior, result caps, or what happens for a private profile, which are the meaningful unknowns for a read here.

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 short sentences with zero filler, and the identity/scope constraint is front-loaded ahead of the usage guidance. Nothing is wasted.

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 no output schema, the description should at least sketch the return shape (list of related profiles? what fields?), and it does not. Given four parameters and a paginated list operation, the definition is minimally adequate but leaves the agent guessing about results and paging.

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 50%: user_id and account_id are well documented in the schema itself, while cursor and search are undocumented anywhere. The phrase 'by provider user ID' reinforces user_id but adds no syntax or format detail beyond the schema, and it does not compensate for the undocumented pagination and search parameters.

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 clear verb and resource ('List a LinkedIn user's visible relations by provider user ID'), but 'relations' is undefined and ambiguous against siblings like linkedin_list_my_connections, linkedin_list_followers, and linkedin_list_following. An agent cannot tell whether 'relations' means followers, following, connections, or some union of them without opening the schema.

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?

It provides a positive trigger ('Use when network graph context is requested for a known profile') but no exclusions or named alternatives, despite several overlapping sibling list tools. Usage is implied rather than delimited.

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