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

No annotations are provided, so the description carries the full behavioral burden. It does add real value by disclosing the returned field set and the conditional 'prices where published', but it says nothing about id format, not-found behavior, permission requirements, or rate limits for what is presumably a public-register read.

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?

One tightly packed sentence with the resource and lookup key front-loaded and the returned fields enumerated after the colon. No filler, though the parenthetical 'incl. premium' slightly interrupts the field list.

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 no output schema, the description does the right thing by naming the main return fields and flagging conditional pricing. Still missing enough for confident invocation: id format, behavior when the home is not found, and whether omitted fields mean 'not published' or 'empty'.

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 0% and the single 'id' parameter is typed only as a string. The description confirms the id identifies one nursing home but gives no format, source, or example, so an agent cannot tell whether it is a slug, UUID, or register number without trial and error.

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 (retrieve) and resource ('Full register data for one nursing home by id'), and enumerates the returned domains: operator, places incl. premium, care types, contact, prices. The 'one nursing home by id' phrasing implicitly contrasts with the list-oriented siblings (search_homes, list_cities), though it never names them explicitly.

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 id' and 'one nursing home' signal this is the single-record detail lookup as opposed to search_homes or compare_homes, but there is no explicit when-to-use statement, no prerequisite that the id must first come from search_homes, and no exclusion guidance.

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