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

Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, so safety is covered. The description goes beyond that by disclosing the terminal status values (pending/indexed/failed/revoked) and, more valuably, the deprecation window for the legacy alias vespa_chunk_count — real lifecycle context an agent could not infer from annotations alone.

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, purpose front-loaded, no filler. The second sentence is dense with parenthetical detail about the alias, but every clause carries information rather than restating the title.

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?

An output schema exists, so return-shape explanation is optional, and annotations cover the safety profile. Still missing for a list tool: pagination/result-size behavior, whether revoked or failed documents are included by default, and any hint about the required API key.

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 single required parameter seller_api_key has 0% schema description coverage and receives no mention in the description at all; nothing explains that it authenticates the seller or how it is obtained. Since it is the only parameter, one sentence would have closed the gap entirely.

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 ('List documents this seller has published') and scopes it to the caller's own seller account, which cleanly separates it from seller_publish_document and seller_list_my_endpoints in the sibling set. An agent can identify the tool without opening the schema.

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 by the possessive scoping ('this seller has published'); there is no explicit statement of when to call this versus seller_list_my_endpoints or the various search tools, and no prerequisites or exclusions are given. Adequate but leaves routing to inference.

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