generate_pin_diagram_ascii

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

No annotations provided, so the description carries full burden. It discloses that the tool generates ASCII art and returns a diagram, which is safe and non-destructive. However, it lacks details on any side effects, authentication requirements, or limitations like board support or output format specifics.

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 concise: three sentences plus structured Args and Returns sections. The main action is front-loaded in the first sentence. No extraneous information.

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 simple tool with one parameter and an output schema, the description adequately covers what the tool does and what it returns. It provides enough context for an AI agent to understand its purpose.

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 schema has 100% coverage with a description for board_type ('Type of development board') and an enum. The description repeats 'Development board type' in the Args section, adding no new meaning beyond the schema. Baseline of 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 generates an ASCII art pinout diagram for a development board, specifying the verb 'Generate' and the resource 'pinout diagram'. It distinguishes from sibling tools like get_pin_info (which provides pin details) and find_adc_pins (which finds specific pins), as it produces a visual layout.

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?

No explicit guidance on when to use this tool versus alternatives such as get_pin_info or find_adc_pins. The description implies the tool is for viewing physical pin layout, but it does not mention scenarios where it is preferred or not, nor does it suggest alternative tools for different needs.

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