close_session

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

With no annotations, the description carries the full behavioral disclosure burden. It only says 'terminate and free resources' but does not mention that the operation is destructive, the effects of the 'kill' parameter, or any side effects on child processes. The description is too sparse to inform the agent of important behavioral traits.

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 a single concise sentence that is easy to parse. It is appropriately short, though it could be improved by front-loading more behavioral detail without becoming verbose.

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 tool, the description lacks key context: the meaning and impact of the kill parameter, the difference from tmux_close_session, and any side effects. Without these, the agent may invoke it incorrectly or struggle to choose between session tools.

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 only 50% (kill has a description, session_id does not). The tool description does not compensate by explaining either parameter. 'Terminate a session' implies session_id is the target, but the kill parameter semantics are left entirely to the schema's 'Defaults true' with no further context.

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 'Terminate a session and free resources' clearly states the verb (terminate) and resource (session). However, it does not distinguish this tool from the sibling tmux_close_session, so it misses the opportunity for differentiation.

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 tmux_close_session or how it fits into session management workflows. The description simply states the action without any context or exclusions.

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