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

Annotations already declare readOnlyHint=true, destructiveHint=false, and openWorldHint=false, so the safety profile is covered. With no output schema, the description adds useful behavioral context by enumerating the returned sections and stating that the timeline is newest first.

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 description is a single front-loaded sentence that opens with the core resource and then compactly lists the payload. Every clause earns its place given there is no output schema to document return contents.

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?

The description covers return contents well for a read-only detail tool without an output schema. However, it omits how to obtain the required task_number and gives no usage context relative to the sibling list tool, leaving a meaningful gap for correct invocation.

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 single required parameter task_number has 0% schema description coverage, so the description must compensate but does not. It never explains the task_number format, source, or relationship to sibling tools like my_agent_tasks.

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 resource: 'One personal-agent task in full', and enumerates the returned contents (goal, linked records, status, notebook, notes, proposal, draft message, timeline). This clearly distinguishes a single-task detail lookup from list-oriented siblings such as my_agent_tasks, though it does not explicitly name that sibling.

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 when-to-use guidance, no prerequisites, and no named alternative such as my_agent_tasks. The singular framing implies this is used after identifying a task, but that is left for the agent to infer.

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