close_session

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

The description does not disclose any behavioral traits such as what happens if the session does not exist, authentication requirements, or side effects. With no annotations provided, the description should compensate but fails to do so.

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 concise, using a short paragraph with bulleted args. It is front-loaded with the primary purpose. Every sentence adds value, though the Args section could be more terse.

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?

Considering there are no annotations but an output schema exists, the description does not explain the return value or confirm success/failure. For a tool with 3 parameters, it lacks completeness around expected outcomes and error conditions.

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 input schema has 0% description coverage, so the description adds some value by explaining that 'host' can be a hostname/IP or SSH config alias. However, 'username' and 'port' are merely restated without additional meaning beyond the schema, so it meets the baseline for a 3.

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 closes a specific SSH session, identifying the resource as a session. It explains that the host parameter can be a hostname/IP or SSH config alias. However, it does not explicitly differentiate from the sibling 'close_all_sessions', though the name implies a single session.

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 like 'close_all_sessions' or when not to use it. The description lacks context for an AI agent to decide between closing a single session or all sessions.

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