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

Annotations already declare readOnlyHint=true and destructiveHint=false, so the safety profile is covered. The description adds a genuinely useful behavioral fact, the required read_goals OAuth scope, but says nothing about pagination behavior or result size even though a page parameter exists.

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 compact sentences that front-load the resource and its output shape, then the auth requirement. The comma-list of fields is dense but readable; no redundant filler.

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 zero-required-parameter list endpoint with no output schema, the description covers resource, returned fields, auth scope, and underlying endpoint. Only pagination semantics are unaddressed, which is a minor gap given the schema documents the page parameter.

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?

The single parameter is fully documented in the schema (page number, with the instruction to pass the previous reply's next_page), so the baseline is 3. The description adds nothing about the page parameter or pagination limits.

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 and resource (list the user's coding goals) and enumerates the fields returned, so an agent can tell what it produces. It doesn't explicitly distinguish itself from the sibling wakatime_get_goal, leaving the collection-vs-single distinction to be inferred from the names.

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?

No statement of when to use this tool versus wakatime_get_goal. The only usage-relevant sentence is the OAuth scope requirement, which is a prerequisite rather than a use-case guideline.

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