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

Annotations already declare readOnlyHint=true and destructiveHint=false, and idempotentHint=true. The description does not contradict these, and adds the conditional behavior of returning connect_url vs authenticated:true. However, it does not disclose details about the return structure or any other behavioral traits such as rate limits or required auth.

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 two sentences, concise and informative. It covers purpose and key behavioral outcomes. It is well-structured, though it might be shortened slightly, but it earns its place.

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?

Given the simplicity (0 params, no output schema), the description sufficiently covers the tool's behavior. It explains the return status and URL scenarios, which is adequate. Sibling tools are not addressed, but the tool is simple enough.

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, so the schema provides all necessary information. Baseline for 0 params is 4. The description adds no additional parameter semantics because there are none.

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 the tool returns connection status and URLs, and it explains the conditional behavior when credentials are missing. It is distinct from siblings because it says 'when all providers are connected', which is not a full description of the connection state.

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?

The description implies usage (check connection status) but does not explicitly state when to use or not use alternatives. It mentions conditions (when credentials are missing) which provide some context, but no exclusions or alternatives are named.

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