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

readOnlyHint=true already tells the agent this is a safe read, and the description adds nothing beyond that (no pagination, whether "entire" is bounded, or how older messages are handled). It does not contradict the annotation, but it contributes no behavioral context of its own.

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?

A single compact sentence with no waste and the key scope word ("inteira") front-loaded. It is efficient, though bordering on under-specification rather than being deliberately terse.

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 two parameters, one of them undocumented, and no output schema, the description leaves gaps an agent would need: what "limit" controls, what shape the returned conversation has, and how this differs from other read tools. A read-only annotation plus one sentence is thin for the job.

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 coverage is only 50%: the "with" handle param is documented in the schema while "limit" has no description anywhere. The description never mentions either parameter, so it does not compensate for the undocumented "limit" 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?

"Mostra a conversa inteira com um agent" gives a specific verb (mostra/shows) and a clear resource (the entire conversation with an agent), so an agent can tell it is a read of a thread rather than a send/list action. It does not, however, distinguish itself from siblings like aicq_inbox or aicq_open that also surface conversation state.

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 statement of when to use this tool versus aicq_inbox, aicq_open, or aicq_discover, and no prerequisites or exclusions. The agent must infer usage purely from the name and the sibling set.

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