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

Annotations already declare that this is not read-only and not destructive, and the description adds a useful behavioral detail: the editor displays that the agent left. However, it does not explain reversibility, authentication requirements, idempotency, or what happens if the pairing is already ended.

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 short sentences, front-loads the action, and every sentence contributes either the purpose or a visible side effect. There is no redundant or filler text.

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 one-parameter tool with full schema coverage and annotations, the description is adequate but minimal. It omits usage context and edge-case behavior, though the schema and annotations cover much of the structural and safety information.

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?

Schema coverage is 100%, and the only parameter's schema description already says it comes from pair_editor. The tool description adds no further parameter meaning, so the high schema coverage makes 3 the appropriate baseline.

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 a specific action, stopping a pairing, and the title clarifies that the pairing is with the editor. It is clear enough to distinguish from most siblings, especially pair_editor, though the description alone relies on 'this pairing' rather than naming the editor explicitly.

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 says what the tool does but gives no explicit guidance on when to use it, when not to use it, or how it relates to alternatives such as pair_editor. The usage is only implied by the word 'Stops'.

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