tz_add_scheduling

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

With no annotations provided, the description carries the full burden for disclosing side effects, required permissions, and return behavior. Only 'Pro feature' adds limited context about entitlement. It does not state whether this modifies existing files, creates new files, requires an api_key for Pro validation, or what output the agent should expect.

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 single sentence is concise and front-loaded with the primary verb and object. However, it is under-specified: it omits parameter behavior and expected outcomes, so the brevity comes at the expense of usefulness. It is not verbose, but it is not 'appropriately sized' for a tool that should direct an agent through a call.

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 the tool is simple with only two parameters and no output schema, the description is too sparse for effective invocation. The agent is not told what 'generating timezone-aware scheduling' produces, where it outputs, whether it needs the api_key for Pro verification, or what input directory state is expected. This is a substantive gap for a generation tool.

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 only 50%, with api_key left undocumented, and the description adds no parameter meaning at all. It does not explain how 'directory' relates to generation or what api_key is used for. The description contributes nothing beyond the schema's bare property names.

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 action ('Generate') and resource ('timezone-aware scheduling'), and indicates this is a Pro feature. It is reasonably clear for the tz_ group. However, it does not explicitly distinguish itself from siblings like tz_setup_handling or tz_add_conversion, nor does it say what artifact is produced.

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 guidance on when to use this tool over alternatives. It does not mention related siblings (tz_setup_handling, tz_add_conversion) or state conditions like 'when you need scheduling across time zones' or 'after setting up timezone handling'. The only contextual hint is 'Pro feature', which notes a licensing requirement but not usage selection.

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