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

Annotations already declare readOnly/idempotent/non-destructive, so the safety profile is covered. The description adds genuinely useful behavior: the id is issued only once and must be saved, output is plain text, and the default call returns nothing. The note that anonymous per-call counting is not linked to your id is meaningful context pointing to `compartilhamento_ver`.

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 sentences are short and front-loaded, leading with the no-argument behavior before the with-id behavior. It is tight and largely waste-free, though the chopped multi-clause style slightly reduces flow.

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?

No output schema exists, yet the description states the return format (plain text) and the content returned (choice, receipts, history), plus the null default. Combined with annotations covering the safety profile, an agent has everything needed to invoke it correctly.

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?

Schema description coverage is 100% and the sole `meu_id` parameter is fully documented in the schema (including the egos-<32 hex> format), so the baseline is 3. The description reinforces the meaning of presence vs. absence of the parameter but adds no syntax or format detail 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?

The description names a specific verb and resource in two modes: without arguments it returns your id once, and with `meu_id` it shows in plain text everything the EGOS server knows about it (choice, receipts, history). This is concrete and distinguishes the two intake paths. It points at `compartilhamento_ver` but does not explicitly contrast itself against the other siblings (`meus_dados_escolher`, `meus_dados_apagar`).

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?

It communicates the two calling modes and notes 'Por padrão: nada' (default returns nothing), which implies how to use it. However, it never states when to prefer this over `meus_dados_escolher` or `meus_dados_apagar`, and there are no explicit exclusions or prerequisites beyond obtaining an id first.

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