list_users_account_json

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

Annotations already cover the key behavioral traits (readOnlyHint=true, idempotentHint=true, destructiveHint=false), so the description doesn't need to repeat safety info. It adds the HTTP method and JSON format, which is minor but non-contradictory extra context. With the annotations covering the safety profile, 3 is appropriate.

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 two compact clauses: 'Get Account (JSON).' followed by the endpoint. No extraneous words, and the essential info is front-loaded. Every element earns its place for a trivial read-only endpoint.

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 zero-parameter read-only endpoint with an output schema, the description is reasonably complete. However, it does not clarify what 'Account' entails or distinguish itself from sibling list_users_account, leaving a small but relevant ambiguity for tool selection. Given the simplicity, a 3 captures this gap.

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 input schema has zero parameters and 100% schema description coverage, so the description does not need to explain any parameters. Baseline 4 applies for zero-parameter tools; there is no additional semantic information required.

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?

The description clearly states the operation: 'Get Account (JSON)' and provides the explicit endpoint. It is specific about the resource (account) and the response format (JSON). However, it does not differentiate this from the similarly named sibling tool list_users_account, which could serve the same purpose in a different format.

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?

The description provides no guidance on when to use this tool versus alternatives. There is no mention of contexts, exclusions, or why an agent might choose this over list_users_account or list_users_2. The agent is left to infer usage purely from the name and endpoint.

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