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

readOnlyHint=true already tells the agent this is a safe read, so the description's main contribution is content disclosure — that provider numbers and connections are included in the response. It says nothing about error/404 behavior, whether missing sub-resources are omitted or null, or any rate/permission constraints.

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 clauses with zero filler; the payload scope is front-loaded and the endpoint hint trails it. Nothing could be cut without losing information.

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 one-parameter read tool with a readOnly annotation and full schema coverage, the minimum is met and the payload hint partially substitutes for the absent output schema. It still does not describe the response shape or failure modes, which is the main remaining gap for a detail-fetch tool.

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?

The single practitioner_id parameter is fully documented in the schema (100% coverage, integer, exclusiveMinimum 0), so the schema carries the load. The description adds no extra semantics about the identifier beyond restating the endpoint template.

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 resource and scope ('One practitioner in full') and enumerates the notable payload contents (provider numbers, connections), plus the underlying endpoint GET /practitioners/{id}. An agent can tell it is the single-record fetch rather than the list, though it never names splose_list_practitioners 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: 'One practitioner' signals single-record detail retrieval versus listing, and the endpoint path reinforces that. There is no statement of when to prefer it over splose_list_practitioners or the related splose_get_practitioner_availability, and no prerequisites or not-found behavior guidance.

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