create_time_entry

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

With no annotations provided, the description carries full burden but only states it 'creates' without behavioral details. It doesn't disclose whether this requires specific permissions, if it's idempotent, what happens on validation errors, or what the response looks like (though no output schema exists).

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 appropriately sized with a clear purpose statement followed by parameter explanations. The 'Args' section is well-structured, though the parameter explanations could be more detailed given the 0% schema coverage.

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?

For a creation tool with 5 parameters, 0% schema coverage, no annotations, and no output schema, the description is incomplete. It lacks behavioral context, error handling information, and sufficient parameter details to fully understand tool operation.

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%, but the description adds basic semantics for all 5 parameters in the 'Args' section, explaining what each represents. However, it doesn't provide format details beyond 'YYYY-MM-DD' for spent_date or constraints like valid hour ranges, leaving gaps in parameter understanding.

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 verb 'Create' and resource 'new time entry', making the purpose immediately understandable. However, it doesn't distinguish this from sibling tools like 'start_timer' or 'stop_timer' which also relate to time tracking, so it misses full sibling differentiation.

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 provides no guidance on when to use this tool versus alternatives. It doesn't mention prerequisites (e.g., needing existing projects/tasks), compare to 'start_timer' for real-time tracking, or specify when this is appropriate versus other time-related tools.

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