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

Annotations already declare readOnlyHint=true, destructiveHint=false, and openWorldHint=true, so the safety profile is fully covered elsewhere, and an output schema exists to describe the return shape. The description's added value is the downstream chaining hint that the returned ids feed daylily.list_public_listings, but it says nothing about edge behavior such as an unknown or nonexistent sellerSlug (empty result vs. error). That is useful but thin beyond the structured data.

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 sentences, zero waste, with the selection condition front-loaded before the chaining instruction. Every sentence carries information the agent needs.

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 simple read-only lookup with full parameter documentation, an output schema, and rich annotations, the description covers the trigger condition and the next step an agent should take. Nothing essential for correct invocation 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?

There is a single required parameter with 100% schema description coverage — the schema already explains that sellerSlug accepts a public seller profile slug or user id. The description adds no format, casing, or resolution guidance beyond that, so the baseline of 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?

The description names a specific resource and scope — public lists/collections belonging to a seller — which separates it from siblings like daylily.list_lists (own lists) and daylily.get_list (single list). It frames the purpose as answering a buyer's question rather than stating a verb directly, which is slightly less crisp than 'List public lists for a seller' but the resource is unambiguous.

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 gives a clear trigger condition ('when a buyer asks what public lists or collections a seller has') and an explicit follow-up step ('Use the returned list ids with daylily.list_public_listings'), which is strong forward guidance. It stops short of naming alternatives or exclusions — e.g. that this is not for the seller's own private lists or for listing search (search_public_listings).

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