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

Annotations already declare readOnlyHint=true, idempotentHint=true, destructiveHint=false, and openWorldHint=false, so the safety profile is covered. The description adds useful access-control context: two alternative credential paths (acesso_codigo vs avaliacao_codigo + agent_pass) and a free-example quota. However, it omits pagination, response format, and what happens on missing/failing credentials.

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?

Single sentence that front-loads the read action but crams two authorization modes and a quota note into one clause, making it dense and slightly hard to parse. No filler, but the access-path enumeration would be clearer as separate sentences.

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 4 parameters and no output schema, the schema carries parameter definitions, and the description covers the access-code branch logic reasonably. But it lacks return-value expectations, error behavior, and routing vs. sibling document tools, leaving moderate gaps for a tool with this credential complexity.

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%, so the baseline is 3. The description adds value by explaining the two distinct authorization paths and their required parameter pairings (acesso_codigo alone vs avaliacao_codigo plus agent_pass), which complements the schema rather than repeating it. It stops short of fully disambiguating the mandatory 'id' from get_procurement semantics.

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 (Reads) and resource (Markdown with the document of given id), so the core action is clear. It is somewhat distinguishable from siblings like get_document or get_document_dossier, though it does not explicitly name how it differs from those. The access-code mechanics add specificity but blur the primary purpose slightly.

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 explicit when-to-use guidance, no mention of alternatives (get_document, get_document_dossier, list_document_files), and no prerequisites stated beyond access codes. The 'Five examples are free' hint offers quota context but not selection guidance. The agent must infer when this is the right tool over the sibling document tools.

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