minify_css

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

With no annotations provided, the description carries the full burden. It discloses the transformation (removing whitespace and comments) but does not mention edge cases, error handling, or limitations (e.g., malformed CSS handling). The basic behavior is clear but not comprehensive.

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 extremely concise with two front-loaded sentences: the first states the purpose, and the second describes the parameter. No superfluous words or repetition. It earns its place efficiently.

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 the tool's simplicity (one parameter, output schema exists), the description covers the core action and parameter. However, it lacks usage context, such as prerequisites or when to choose this over other minification tools. The presence of an output schema reduces the need to describe return values, but the overall completeness is adequate but not excellent.

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?

Schema description coverage is 0%, so the description must compensate. It adds meaningful context by listing the parameter as 'css — CSS content to minify,' clarifying what the single required parameter expects. This provides sufficient semantics for the agent.

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 'Minify CSS by removing whitespace and comments,' specifying the exact verb and resource. It distinguishes itself from sibling tools like 'code_minify_js' and 'minify_html' by explicitly targeting CSS.

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 is provided on when to use this tool versus alternatives, such as when minifying other code types like JavaScript or HTML. The description lacks explicit contexts, 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.