Get API capabilities

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 clear from structured data. The description adds minimal behavioral context beyond a marginally confusing 'public bisibility' scope note (typo aside). It doesn't describe output format or pagination, but for a capabilities-list tool that's a modest gap given annotations are present.

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 sentence is appropriately concise, but the typo ('bisibility') and slightly awkward phrasing ('exposed for agent workflows') reduce clarity. The sentence earns its place but could be tightened and corrected.

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 simple zero-parameter read-only discovery tool with strong annotations, the description is adequately complete. However, it doesn't specify what the returned list actually contains (endpoint names? permission scopes? capability identifiers?), which an agent might need to know before relying on the response. Given no output schema exists, the description carries some burden to describe return expectations.

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 has zero parameters and the schema coverage is 100% (empty properties object). With 0 parameters, the baseline is 4 per the rubric. There's nothing for the description to add about parameter semantics, so this default applies appropriately.

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 states 'List the public bisibility API capabilities exposed for agent workflows' with a clear verb+resource, but contains a typo ('bisibility' instead of presumably 'visibility'). The purpose is largely inferable from the name and title, making it somewhat redundant, though it does add the useful scoping note about 'agent workflows'.

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 guidance is provided on when to use this tool versus alternatives. While the sibling set includes get_health (a similar discovery/meta endpoint), the description does not differentiate or discourage misuse. Context is not elaborated beyond the bare listing action.

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