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

readOnlyHint=true already declares this is a safe read, and the description is consistent with that by citing GET. The REST path adds a little context but is essentially a restatement of the operation rather than new behavioral information (no error behavior for unknown ids, no auth/scope notes).

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, no filler: the human-readable purpose comes first, endpoint second. Every clause contributes.

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 simple read tool with full schema coverage and a readOnly annotation, the essentials are present. However, with no output schema, the description never indicates what a returned resource looks like or whether it errors on a missing id, leaving a real gap for an agent planning to consume the result.

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%, including the default for business_id and the note that resource_id comes from reservio_list_resources, so the heavy lifting is already done. The description adds no parameter-level meaning beyond the schema, which is the expected baseline here.

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 one resource") and clarifies domain ambiguity by defining a resource as a staff member or room, plus the id-based lookup mode. It does not explicitly distinguish itself from the sibling reservio_list_resources, but the singular/"by id" framing makes the distinction inferable.

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: fetching a single resource when its id is known. There is no explicit statement about when to prefer this over reservio_list_resources or what to do if the id is unknown (the schema hints the id comes from the list tool, but the description itself gives no guidance).

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