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

Without annotations, the description reveals it is a mutation tool (CRUD + assign). It clarifies the meaning of 'assign' but omits details like side effects of deletion (e.g., if the active schedule is deleted), limits on schedule creation, or authentication requirements beyond 'your own.' Some aspects remain opaque.

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 two concise sentences. The first sentence captures the core purpose and actions, and the second provides additional constraints and param guidance. No extraneous text; every sentence serves a purpose.

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?

No output schema is provided, and the description gives no information about return values, error conditions, or behavior under edge cases (e.g., deleting an active schedule). The concept of 'simple schedule' is left unexplained. For a tool with six parameters and no annotations, the description is insufficiently complete.

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 coverage is 100%, so parameters are already documented. The description adds modest value by explaining the 'assign' action and 'default_hours' purpose, but largely repeats schema information. No parameter lacks clarity, but the description does not significantly augment schema meaning.

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 tool manages the user's own personal work schedule, lists the four actions (create, update, delete, assign), and distinguishes it from siblings like set_org_work_schedule by emphasizing 'your own' and 'organization fixed by context.'

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 specifies when each action is appropriate and which parameters are required (e.g., schedule_id for update/delete/assign). It includes context about the organization being fixed, but does not explicitly state when not to use this tool versus siblings like delete_work_schedule.

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