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

Annotations declare readOnlyHint=false but destructiveHint=false, so the operation is a non-destructive write. The description adds valuable context beyond that: paused days count like skipped ones, the start can be 7 days back to 60 days ahead, and the pause lasts at most 30 days. These constraints materially affect correct invocation.

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?

Three tight sentences, front-loaded with purpose, then behavioral consequence, then the validity constraints. No filler; the size fits the tool's complexity.

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?

An output schema exists, so return values need not be explained, and annotations cover the safety profile. The description supplies the range/limit rules and the semantic effect on skipped days, leaving little an agent needs but the explicit tie-break against sibling tools.

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%, so 'from', 'to', and 'reason' are fully documented in the schema itself. The description adds no format or edge-case detail beyond what the schema already provides, so the baseline 3 applies.

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 verb ('Pauses') and resource scope ('every topic over a range of days'), which clearly distinguishes it from the singular sibling skip_day. It doesn't explicitly name an alternative tool, but the 'every topic' scope plus the comparison to skipped days makes its role unambiguous.

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?

Usage context is offered via examples ('a holiday, an illness') and validity windows, but there is no explicit guidance on when to choose pause_days over skip_day or unskip. The conditions for use are implied rather than stated as a routing rule.

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