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

Annotations already declare readOnlyHint=true, destructiveHint=false and openWorldHint=false, so safety is covered. The description contributes ordering ('newest first') and the returned fields, but says nothing about pagination or what happens when results exceed the limit, which matters for a list tool.

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?

Very short and front-loaded: the resource scope and returned fields come first, ordering last. The telegraphic fragment style is dense rather than wasteful, though a full clause would read slightly cleaner.

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 must convey return values, and it does partially (views, readers, last-opened, sort order). However, for a list tool with a limit parameter, the absence of any paging/default-size behavior leaves a real gap.

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 only 50%: 'query' is documented in the schema, but 'limit' has no description anywhere. The description never mentions limiting or paging, so it fails to compensate for the undocumented parameter.

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 names the resource ('My links') and, more usefully, what each entry contains (views, readers, last-opened time) plus ordering ('Newest first'), so an agent knows exactly what comes back. It is clear but does not distinguish itself from neighbors like link_report, recent_activity, or shared_with_me.

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?

'My links' implicitly signals an ownership scope, which is a mild differentiation from shared_with_me, but there is no explicit when-to-use, when-not-to-use, or named alternative. The agent must infer selection criteria from the resource name alone.

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