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

Annotations already declare readOnlyHint=true and destructiveHint=false, so the safety profile is covered. The description adds a useful enumeration of what comes back (profile, public lists, images, listing/list counts), but nothing about pagination, visibility rules, or what happens for an unknown slug. Adds some value beyond annotations, not rich context.

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?

Two tight sentences: usage condition first, payload summary second, with no redundant or filler wording. Appropriately sized for a single-parameter read tool.

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?

A simple read tool with one fully documented parameter, an output schema, and safety annotations; the description covers the selection context. The return-value sentence is partly redundant given the output schema, but nothing an agent needs to call it correctly is missing.

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 100% and the single sellerSlug parameter is fully documented in the schema. The description only restates that lookup is 'by seller slug', adding no format, resolution, or fallback details beyond the schema. Baseline 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?

States a specific verb and resource (get a public grower/catalog profile) and qualifies the scope as 'public', which distinguishes it from the sibling get_profile and pairs with list_public_profiles. It does not explicitly say how it differs from get_profile, so sibling differentiation is implied rather than spelled out.

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?

Gives a concrete triggering context ('when a buyer asks about a public grower or catalog profile by seller slug'), which is clear enough to select it over listing/search siblings. It stops short of naming an alternative (e.g. use get_profile for your own profile) or stating exclusions.

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