start_my_clock

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

With no annotations and no description of side effects, failure conditions, or return behavior, the description leaves the tool's full behavior unclear. It does not state whether starting the clock is idempotent, whether it fails if a clock is already running, or what the response will contain.

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 very concise and free of redundant or irrelevant information. The one-sentence purpose followed by a simple parameter list is efficient and easy to parse.

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?

Overall, the description is too sparse to be fully self-contained. It omits important behavioral details, parameter semantics, and any mention of what the caller should expect after invoking the tool, making it incomplete for an agent relying solely on this text.

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%, and the parameter descriptions are largely tautological (e.g., 'customers_id: ID of the customer', 'services_id: ID of the service'). The description adds no meaningful guidance about where IDs come from, constraints, or relationships between parameters, so an agent cannot reliably determine correct values.

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 clearly states the action ('Start the clock') and the target ('the authenticated user'), which distinguishes it from sibling tools like stop_my_clock and get_my_clock. However, it does not explicitly clarify whether this creates a time entry or merely begins tracking, leaving slight ambiguity.

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 alternatives such as add_my_time_entry or stop_my_clock. Usage is only implied by the tool's name and minimal description, so an agent receives little direction on choosing this tool.

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