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

Annotations already cover read-only, idempotent, and non-destructive behavior, while the description adds useful return semantics: fields returned, the Swing Score range and 15+ swing requirement, and the newer 'On target' comparison. It does not disclose limit behavior such as default size or the maximum of 20.

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 description is front-loaded with the core action and returned fields, and every clause is relevant to understanding the output. It is dense and the parenthetical definitions make the single sentence long, but there is no wasted framing.

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 adequately explains what is returned and the condition affecting Swing Score versus On target. Safety behavior is covered by annotations; the main remaining gap is the undocumented limit parameter.

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 sole parameter, limit, has 0% schema description coverage, and the description never explains its default of 5, maximum of 20, or that it controls how many recent sessions are returned. 'Most recent' hints at recency but does not add parameter meaning beyond the schema.

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 ('List the golfer's most recent PocketCaddie range sessions') and enumerates returned fields, so the agent can tell this is a recent-session summary rather than a single-session lookup. It does not explicitly name the sibling session_detail, leaving some differentiation implicit.

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?

'Most recent' implies the usage context, but the description never says when to choose this over session_detail, progress, or rounds. There are no explicit exclusions or prerequisite conditions.

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