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

Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, so the safety profile is covered. The description adds valuable conditional behavior beyond annotations: the authenticated:true/empty pending[] state versus the connect_url/per-install URL state. A minor gap is that the partial-connectivity case (some providers connected, some not) is not described.

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 sentences, front-loaded with the core purpose, then conditional details. Every sentence earns its place with no redundancy or padding — the description is appropriately sized for a parameterless status tool.

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 0-parameter, read-only status tool with robust annotations, the description is nearly complete: it specifies the return shape for the two primary states. The only gap is the omitted middle case (partial connectivity), and since there is no output schema, the description carries the full burden for return-value documentation.

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 100% schema coverage is vacuously satisfied by an empty properties object. Per the rubric, a 0-parameter tool receives a baseline of 4, and there is nothing further the description needs to add about parameter meaning.

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 uses a specific verb+resource pair ('Returns connection status and URLs') and clearly defines the output contract for two distinct states (all connected vs. missing credentials). This distinguishes it from siblings like authenticate, which performs the connection action, and show_version/toolkit_info, which report different system facts.

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?

Usage context is implied through the described conditional outputs — the agent can infer it is a status-check tool to call before/after authentication. However, there is no explicit guidance on when to use connect versus authenticate, nor any exclusions or alternatives named.

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