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

Annotations already declare this is a non-read-only, non-destructive, non-idempotent operation, so the safety profile is covered. The description adds nothing about the traits that actually matter for a 'set' tool: whether omitted platforms are cleared or preserved, and what idempotentHint=false means in practice. It repeats mutation semantics the annotations already convey.

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 front-loaded sentence with no filler and no repetition of the title or field names. Every word earns its place.

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 6-optional-param mutation tool with annotations and full schema coverage, the essentials are present. However, the overwrite-vs-merge behavior and the relationship to find_social_profiles are unstated, leaving an agent unsure how calls compose.

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 100% across all 6 platform parameters, so the schema fully documents them. The description adds no format, validation, or partial-update semantics beyond the field list, so baseline 3 is appropriate.

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 (Save) and resource (social media profile URLs) plus the target (their account). The word 'confirmed' implies this is a persistence step rather than a discovery step, but it never names the obvious sibling find_social_profiles to sharpen the distinction.

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 explicit when-to-use guidance, no prerequisites, and no reference to the sibling tool that produces the URLs in the first place. 'Confirmed' faintly hints at a prior confirmation step, but the agent must infer the workflow entirely.

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