Start

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

Annotations already state readOnlyHint=false, idempotentHint=false, openWorldHint=true, and destructiveHint=false. The description adds no behavioral context such as whether starting creates persistent state, requires permissions, emits side effects, or how sessions relate to operations.

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?

It is very short and front-loads 'Start,' but the second fragment is a vague category label rather than useful structure. It avoids fluff but is under-specified for an operation-start tool.

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?

Although an output schema exists and annotations cover safety hints, the description does not explain what starting an operation does, how session state is affected, or how this tool fits the lifecycle. For a non-idempotent, open-world mutation, this leaves important context missing.

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 schema documents all four parameters, so the baseline is 3. The description itself adds no parameter meaning beyond the schema, particularly for operation_type, total_steps, and details.

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 name and title already say 'Start'; the description repeats that and adds only the broad category 'Operation lifecycle and session management.' It does not specify what is being started, what an operation represents, or how this differs from siblings like get_progress or cancel.

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?

The description gives no explicit guidance on when to use this tool versus sibling operation tools, nor any prerequisites or when-not-to-use conditions. 'Operation lifecycle and session management' is too vague to route an agent among start, get_progress, cancel, get_metrics, or list_sessions.

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