get_account_stats

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

The readOnlyHint annotation covers the read-only nature, but the description adds little behavioral context beyond what the output schema already conveys. It does not disclose important behavior such as what happens when the account parameter is null (e.g., whether it defaults to the authenticated user) or any auth/rate-limit implications.

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 a single short, focused phrase with no filler or redundancy. It is well-structured but still reads as a fragment rather than a complete sentence, which slightly reduces clarity.

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 tool with only one optional parameter and an output schema, the description is close to sufficient but misses the critical default/null behavior of 'account'. It also fails to clarify the relationship to the get_karma_breakdown sibling, leaving an agent uncertain about when to pass an account versus using the current one.

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 0% description coverage and the only parameter, 'account', is undocumented. The description merely repeats the word 'account' without explaining whether it expects a username, ID, or null meaning 'current account' — so it adds no semantic value over the raw 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?

The description states the resource and the data points returned ('Karma breakdown, account age, and follower count for the account'), so an agent can tell it is an account-stats retrieval tool. However, it lacks an explicit verb and does not differentiate it from the overlapping sibling get_karma_breakdown, so it stops short of the top score.

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?

No guidance is given for when to use this tool versus alternatives. The sibling get_karma_breakdown overlaps in the karma-breakdown output, but the description does not explain how to choose between them, nor when the optional account parameter should be provided.

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