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

Annotations already declare idempotentHint=true, destructiveHint=false, readOnlyHint=false. The description adds real value beyond them: it discloses the return payload (platform-specific commands, pairing code, expiry), the platform split (Windows PowerShell bootstrap vs macOS/Linux npm launcher), and the idempotency condition ('same commands returned while the code is still valid'). It does not explain why readOnlyHint=false, which is a minor gap.

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?

Front-loads the when-to-use trigger, then the return payload and platform details in a tight three-sentence block. Every sentence adds distinct information with no 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?

With no parameters, an output schema present, and annotations covering the safety profile, the description covers the remaining gaps: trigger, return contents, platform behavior, and code validity. Nothing an agent needs to call it correctly is missing.

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, so the baseline is 4. There are no inputs whose semantics need explaining, and the description correctly focuses on return behavior instead.

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 action (generating pairing commands to connect another computer) and the resource (ReMCP account / new device). The description makes clear this returns commands, not that it connects directly, and no sibling tool overlaps with pairing. An agent can identify the correct tool without inspecting the schema.

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?

Explicitly states when to use it: 'when the person wants to connect another computer to their ReMCP account, or asks how to add a device.' This is clear trigger guidance, though it names no alternative or exclusion (e.g. how it differs from enable_device), leaving a small gap.

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