generate_lyrics

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It does disclose the return value ('generated lyrics with title'), which is a positive trait, but it does not elaborate on output length, style constraints, or other behavioral nuances. It provides some transparency but not a comprehensive account.

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: two short sentences that lead with the core action and then state the return value. There is no superfluous text, making it well-structured and easy to parse.

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 fully documented parameter and no output schema, the description covers the essential behavior (generates lyrics) and return format (with title). It is adequately complete for an agent to know what the tool does and what to expect, though it omits minor limitations or stylistic details.

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 input schema fully documents the single 'prompt' parameter with 100% coverage and includes examples. The description's phrasing ('based on a description or theme') merely paraphrases the schema's description and adds no additional semantic value, so the baseline of 3 applies.

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's action (generate) and resource (lyrics), and specifies the input as 'a description or theme.' It differentiates from the sibling tool 'generate_music' by focusing on lyrics rather than music, making the purpose 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?

The description implies when to use the tool—when lyrics are needed—but does not explicitly state when to prefer it over the sibling 'generate_music' or provide any exclusions or alternative guidance. The usage context is inferred rather than spelled out.

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