ebi-pdbe-unip_giruiru_acc_66c74d5c

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 and the description is not required to repeat it. The description adds some behavioral context by sketching the response (amino-acid sequence for polymeric entities, total sequence length, residue array with processed-sequence start positions), but does not say whether results can be empty for non-interface proteins or how large the payload may be.

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 purpose is front-loaded in the first sentence, which is good, but the following sentences pad rather than inform: 'The response provides the type of data included' is vague filler, and the closing sentence about 'enabling analysis' restates the use case without adding constraints.

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?

With a single required parameter and no output schema, the description partially carries the return-value burden by naming sequence, total length and residue-level items. That sketch is imprecise and omits error/empty-result behavior, so it is adequate but not complete for a tool whose only structured documentation is one field.

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 parameter is documented in the schema, so the baseline is 3. The description adds no meaning beyond that — no accession format example, no statement about which namespaces or entry types are accepted, and no indication of what happens with an invalid accession.

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 opens with a specific verb and resource: 'Retrieve detailed information on interface residues for a given UniProt accession', which is far more than a restatement of the name. It does not, however, distinguish this tool from the entity-based interface-residue siblings (ebi-pdbe-iface_res_ent_interfaces_id_entity_id, ebi-pdbe-ent_iface_res_ent_iface_res_id), so an agent cannot tell which addressing scheme to pick.

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?

There is no when-to-use or when-not-to-use guidance, no mention of the entity-ID alternatives in the sibling list, and no stated prerequisites. The agent must infer from the parameter alone that this is the accession-based route into interface residues.

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