Reset Connection

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

The annotations already declare idempotentHint=true, destructiveHint=false, and openWorldHint=false, so the safety profile is largely given. The description adds the meaningful behavioral detail that the connection is recreated and that omitted arguments fall back to localhost and SIS_PORT (or 8086). It does not say whether in-flight requests are dropped or whether any existing session state is lost when the connection is recreated, which is the main remaining behavioral question.

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?

Three short sentences: what it does, when to use it, and default behavior. The purpose is front-loaded and no sentence is padding, though the default-behavior sentence is somewhat redundant with the schema.

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 two-parameter, zero-required tool with full schema coverage, existing annotations, and an output schema, this is nearly complete. What remains unsaid is the effect on existing connections or in-flight work, which an agent might want before calling a connection-recreating tool.

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 description coverage is 100%, and both host and port already document their defaults (localhost; SIS_PORT or 8086) directly in the schema. The description's closing sentence restates exactly those defaults rather than adding format or edge-case detail beyond them. Baseline 3 is appropriate when the schema carries the parameter semantics.

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 opens with a specific verb and resource: 'Recreate the HTTP connection to the Smalltalk Interop Server.' That is far more informative than the tautological title 'Reset Connection' and makes the runtime host/port switching purpose explicit. It loses a point only because it never contrasts itself with any sibling, though none of the siblings (list_packages, eval, get_settings, etc.) are close enough to be confusable.

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?

It gives a clear when-to-use condition: switch the MCP server to another SIS host or port at runtime without restarting the process. That is actionable context an agent could not infer from the schema. There is no explicit when-not-to-use guidance, such as whether this should ever be called while other requests are active.

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