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

No annotations exist, so the description carries the full disclosure burden. 'Return' implies a read-only operation, 'masked email' discloses a privacy behavior, and 'Free' discloses cost — genuinely useful context beyond the name. It stops short of stating auth requirements or what happens when the caller is unauthenticated.

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?

One sentence, zero waste, front-loaded with the action and resource. The return fields and the cost note are packed in without filler.

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 usefully enumerates the returned fields (masked email, balance, scopes) and notes the call is free. Nothing more is needed for such a simple zero-param read, though an error/auth note would make it airtight.

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 tool takes zero parameters, so there is nothing to disambiguate and the baseline is 4. The description correctly conveys that no input is needed, matching the empty 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 a specific verb ('Return') and resource ('the authenticated account') and enumerates the content returned: masked email, balance, scopes. It is clear what the tool does, but it does not differentiate itself from the sibling fikra_get_balance, which overlaps on the balance field.

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?

There is no explicit guidance on when to call this versus fikra_get_balance, fikra_get_usage, or fikra_list_api_keys, all of which are sibling read tools on the same account domain. The only usage-adjacent signal is 'Free', which hints at cost but does not route the agent between alternatives.

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