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

Annotations already declare readOnlyHint=true and destructiveHint=false. The description adds an auth requirement (Bearer JWT), explains the unclaimed response shape, and details badge and X account fields, including the fact that connecting X grants the influencer badge. These are valuable behavioral insights beyond the annotations.

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?

The description is a single dense paragraph, but every sentence adds unique value. It front-loads the primary purpose, then covers badges, X account, and auth. Slightly verbose but not wasteful.

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 explain return values, and it does thoroughly: claimed flag, suggested_handle, badges, badge, x_handle, x_verified_type, x_verified. It also explains the OAuth broker's role and the influencer badge grant. Auth and follow-up suggestions are included, making it complete for an agent to call correctly.

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 tool takes zero parameters and schema coverage is 100% (empty object). The description correctly implies no inputs are needed. Baseline 4 applies for zero 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 clearly states it returns the logged-in identity's builder page, including badges and X account info. It specifies the resource ('your page') and the action (returns). However, it does not explicitly contrast with the sibling page_get, so an agent must infer the distinction from the name.

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 actionable follow-up guidance: if unclaimed, suggests page_claim; mentions page_badge_set for changing the public badge. It implies when to use it (when you need your own page) but does not explicitly state when not to use it or compare with alternatives like page_get.

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