serial_detect_baud

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

Describes internal behavior: opens/closes port, sends \r\n if probe=True, and the constraint that no active session is allowed. This adds significant context beyond annotations (idempotentHint, etc.) without contradiction.

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 well-structured with a main statement, then behavioral details and parameter explanations. It is slightly verbose but remains clear and front-loaded.

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?

While it explains behavior and parameters, it does not explicitly state the return value format (likely a baud rate). However, given the lack of output schema, this is a minor gap; overall it is complete enough for usage.

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 fully compensates by explaining the port parameter (device path) and probe parameter (boolean prompting). It provides concrete examples for port values.

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 auto-detects baud rate on a serial port, which is distinct from sibling tools like serial_open or serial_write. The verb 'detect' and resource 'baud rate' are specific and unambiguous.

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?

Explicitly states when to use (to detect baud rate) and when not to (port must not have an active session). It also recommends using serial_open() after detection, providing an alternative tool.

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