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

Annotations already declare readOnlyHint=true and openWorldHint=true, so the safe-read profile is covered structurally. The description adds genuinely useful context by disclosing that results include expiration dates and cover a single animal, which is meaningful since no output schema exists. It does not cover pagination, empty-result behavior, or auth requirements, so it stays at a baseline-plus level.

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 short sentences, zero filler, with the resource and scope front-loaded before the API route reference. Nothing needs trimming.

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 single-parameter read tool whose annotations carry the safety profile, the description is close to sufficient; mentioning expiration dates partially compensates for the absent output schema. It could still say more about what the records contain or how many are returned, keeping it short of a 5.

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 animal_id parameter is fully documented in the schema. The description's 'of one animal' phrase reinforces the cardinality but adds no syntax or format detail beyond the schema, matching the baseline 3 for schema-driven parameters.

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 the immunization (vaccination) records of one animal') plus the scope ('one animal, with expiration dates'). It is clearly distinguishable from sibling read tools like gingr_get_animal_medications and gingr_get_animal_feeding without opening any 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?

There is no statement of when to use this tool versus alternatives, no prerequisites, and no exclusions. Usage is only inferable from the tool name and the 'one animal' scoping phrase.

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