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

Adds real behavioral context beyond the annotations: the operation is reversible, requires no approval, has low risk, and creates a Task entity — none of which is captured by readOnlyHint/destructiveHint/idempotentHint. The stated reversibility is consistent with destructiveHint=false. It still doesn't describe the response (e.g., whether a task ID is returned).

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?

Front-loaded main clause followed by compact risk/scope metadata; no filler. The metadata block is dense but each item (scope, risk, side effect, availability) contributes decision-relevant information.

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?

Covers side effects, reversibility, permission scope and availability, which is solid for a mutation tool with no output schema. It falls short on the return value and on documenting five of six parameters, which an agent needs to build a correct call.

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 0% across 6 parameters, so the description carries the full burden. It only vaguely gestures at group_id/assignee_id via "grupo/responsável informado" and says nothing about title constraints, due_date format, the priority enum values, or the description field.

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 and resource ("Cria uma tarefa") plus the target scope (operator, or the given group/assignee). An agent can distinguish it from list_tasks and update_task, though the description never names those siblings explicitly.

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?

Provides a prerequisite-style caveat (requires operations:write scope, and is flagged as unavailable under the current authorization) which is genuinely useful for deciding whether to attempt the call. However, it gives no guidance on when to use this versus update_task or list_tasks, and no when-not conditions.

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