Stop

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

No annotations are provided, so the description carries the full burden, and it does disclose the critical behavioral trait: this terminates the server process, i.e. it is an irreversible lifecycle-ending action. It does not say whether shutdown is graceful, whether in-flight operations are aborted, or whether a response is returned before the process dies, so it falls short of full disclosure.

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?

Two short sentences, effect front-loaded, no filler. Every word 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?

For a zero-param tool with an output schema, the description covers what the tool does and its main consequence. What is missing is operational context an agent would want before invoking an irreversible shutdown (graceful vs abrupt, effect on the response channel), but the essential information is present.

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 there is nothing for the description to disambiguate. The baseline for a parameterless schema is 4.

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 verb ('Stop') and resource ('the MCP server'), and the second sentence clarifies the concrete effect ('terminate the process'). No sibling tool (login, create_paste, delete_paste, etc.) does anything similar, so it is unambiguously distinguishable from the rest of the toolset.

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?

Usage is implied rather than stated: the agent can infer this is the terminal shutdown action, but there is no explicit when-to-use framing, no warning about when not to call it, and no mention of alternatives or prerequisites. For a destructive lifecycle tool, that is the minimum viable level of guidance.

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