list_components

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

No annotations are provided, so the description carries the burden, but this is a zero-parameter read-only list so the risk surface is small. It discloses scope (everything under a specific path, organized by the enumerated categories) yet says nothing about the return shape (names vs paths vs file contents) or any ordering.

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?

A single front-loaded sentence with no filler; the parenthetical category list is the only elaboration and it directly helps the agent predict the output.

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 trivial no-arg listing tool with no annotations or output schema, the description covers what is returned and its scope. The only real gap is the result format (filenames, paths, or contents), which is minor given the tool's simplicity.

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 tool takes zero parameters, so the baseline per the rubric is 4. There is nothing for the description to disambiguate, and the parenthetical category list usefully describes the implicit partitioning of results.

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?

States a concrete verb ('List') plus the exact resource scope ('every component file under scss/components/') and enumerates the category subfolders, so an agent knows precisely what comes back. It doesn't explicitly contrast itself with get_component or search_components, but 'every' signals exhaustive enumeration versus the retrieval/search siblings.

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?

Usage is only implied: an agent can infer this is the tool for enumerating all components rather than fetching or searching one. There is no explicit when-to-use statement, no exclusion ('don't use this to find a specific component'), and no pointer to search_components/get_component as alternatives.

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