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

Annotations already declare readOnlyHint=true, idempotentHint=true and openWorldHint=false, so the safety profile is covered. The description adds that plants are inserted into the designer's plant list, but says nothing about the link's lifetime, format, or whether the plant list is persisted server-side.

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 that front-loads the return value (a link) and then the purpose. No filler, though the clause about handing the list to a designer is slightly decorative rather than operational.

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?

There is no output schema, but the description still communicates what the caller gets back (an openable designer link with the plants populated). For a one-parameter, read-only tool this is close to complete, missing only return-format specifics.

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 coverage is 100% and the single 'plants' parameter is fully documented with ranges and slug/name guidance. The description restates that plants end up in the designer's plant list, adding minor meaning beyond the schema, which fits the baseline-3 case where the schema does the heavy lifting.

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 states a clear outcome: producing a link that opens the garden designer with the given plants pre-loaded. It is easy to distinguish from siblings like search_plants or get_guide, though it doesn't explicitly name the closest sibling (get_contact_link) that also builds a link.

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?

It implies when the tool is useful ('so the person can sketch a layout or hand the list to a designer'), which conveys intent but not a when-to-use/when-not-to-use rule. No alternative is named or excluded, leaving the agent to infer that this is the link-building option among the get_* siblings.

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