serial_log_stop

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

The description discloses that the tool stops logging and closes the file, and returns specific data. Annotations indicate idempotent and non-destructive, which aligns. The description adds value by explaining the return value details beyond annotations.

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 succinct with three sentences, each serving a purpose: action, return values, and parameter explanation. No wasted words.

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 no output schema, the description adequately lists return values. However, it lacks details on error conditions or what happens with invalid session_id, but it's reasonably complete for a simple stop operation.

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?

With 0% schema description coverage, the description compensates by explaining the session_id parameter's purpose ('Port name of the session') and its optional behavior. This adds meaning beyond the nullable type and default in the schema.

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 action ('stop logging serial data and close the log file') and distinguishes from siblings like serial_log_start. It also lists the return values, providing a specific verb and resource.

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 implies usage after serial_log_start but does not explicitly state when to use or when to avoid. The optional session_id note provides some context but lacks exclusions or alternative tool mentions.

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