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

Annotations already indicate this is a write operation (readOnlyHint=false) and not destructive (destructiveHint=false). The description adds useful context by requiring seller authentication and ownership attestation for regulated assets, but it does not disclose whether the listing goes live immediately, is moderated, or whether publishing is reversible. It also does not mention the response or resulting listing ID.

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?

The description is two tight sentences. It front-loads the core action and asset types, then adds the authentication/attestation requirement. There is no filler or repetition of schema details.

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?

Given the high complexity — 17 parameters, nested objects, no enums, and no output schema — the description is not nearly complete. It omits how field values should be formatted, what combinations of parameters are valid (e.g., endpoint_url and input_schema for API listings), what the return value is, and any post-publish behavior. The existing auth note is helpful but insufficient for a tool this complex.

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 only 12%, with just api_key and provenance_url documented in the schema. The description names broad asset categories but does not explain the meaning or allowed values of key parameters such as listing_type, category, payment_rail, auto_execute, delivery_minutes, endpoint_url, input_schema, or output_schema. With 17 parameters and no enums, this leaves an agent with very little guidance for constructing a valid request.

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 verb ('Publish') and resource ('a lawful service, API, data product, compute offer, domain, transferable software license or digital product'), which gives an agent a concrete sense of what can be listed. It is distinct from pure search/query tools like search_listings or get_listing, though it does not explicitly differentiate itself from the similarly named register_capability.

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?

The description provides a meaningful precondition: seller authentication and ownership/authorization attestation for regulated asset types. However, it gives no explicit guidance on when to choose this tool over related siblings such as register_capability, find_capability, or search_listings, nor does it mention what would make this tool inappropriate.

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