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

The readOnlyHint=true annotation already establishes this is a safe, non-mutating lookup, and the description usefully adds that two things come back (registry config plus CLI command) and that dependencies are resolved into the command. It does not say whether the command is a single string or per-part, how registry-qualified names are handled, or what happens for unknown parts.

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?

One compact sentence with no filler, leading with what is returned. The noun-phrase construction ('The ... config and the ... command that installs...') is slightly indirect but not wasteful.

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 one-parameter, read-only lookup with no output schema, the description gives a high-level picture of the return payload but not its shape or fields, leaving the agent to discover the response structure at call time. Adequate minimum viability, but not complete.

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?

With a single parameter at 0% schema description coverage, the description must carry the meaning, and it partially does by framing 'names' as the parts to install and noting dependencies are included. It never clarifies the accepted name format (bare names versus registry-scoped names like '@shadcn/button') or ordering/deduplication behavior for the array.

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 names the specific artifacts returned: the components.json registry config and the shadcn CLI install command for the requested parts, including dependencies. That is concrete enough to separate it from get_component_source or get_component, which presumably return code rather than install instructions, though it never names those siblings explicitly.

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?

There is no when-to-use or when-not guidance, no mention of alternatives like get_component for inspecting a component versus this tool for installing one, and no stated prerequisites (e.g., whether a project or components.json must already exist). Usage is only weakly implied by the words 'installs the given parts'.

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