serial.plugin.reload

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

No annotations provided, so the description carries full burden. It transparently describes the action (reload, re-import, refresh tools) which implies a safe operation. It does not elaborate on error states or side effects.

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 sentences: first states the action and effect, second provides a prerequisite. No irrelevant information, front-loaded with the core action.

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?

Given the tool has one parameter, no output schema, and no annotations, the description covers the essential: what it does and a prerequisite. It lacks error handling notes (e.g., if plugin not found) but is mostly complete.

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 single parameter 'name' is described in the schema as 'Name of the loaded plugin to reload.' The description adds the env var requirement but does not clarify what constitutes a valid 'name' (e.g., file name or plugin ID). Given 100% schema coverage, baseline 3 is appropriate.

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 hot-reloads a plugin by name, specifying it re-imports the module and refreshes tools. This distinguishes it from sibling tools like serial.plugin.load (initial load) and serial.plugin.list (listing).

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 provides a clear prerequisite: requires SERIAL_MCP_PLUGINS env var to be set. It does not explicitly state when not to use the tool or mention alternatives, but the context is adequate for a simple tool.

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