format_format_pad

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

With no annotations, the description should disclose behavior like default fill (space?), truncation policy, and error handling. It only mentions padding and alignment, leaving significant behavioral gaps.

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?

Extremely concise with no redundant words. The category prefix '[format]' and direct phrasing efficiently convey the core action and key parameters.

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?

Despite having an output schema, the description is too sparse for a 4-parameter tool. It omits default behaviors, error scenarios, and the purpose of the 'fill' parameter, leaving the agent underinformed.

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 description adds meaning for the 'align' parameter by listing valid values (left/right/center) but does not explain the 'fill' parameter or the unit of 'width'. Since schema description coverage is 0%, more parameter details are needed.

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?

Clearly states the tool pads text to a specified width and mentions alignment options, distinguishing it from other format tools like format_format_truncate or format_format_number. However, it could be more explicit about the default padding character and behavior when text exceeds width.

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 guidance on when to use this tool over alternatives. With many sibling format tools, the agent lacks context for selection. No when-to-use or when-not-to-use hints provided.

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