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

Annotations already flag destructiveHint=true, and the description is consistent with that by explaining the schedule will fire again (side effects resume). It adds the HTTP method/endpoint, which is mildly useful, but says nothing about permissions, what 'paused' state means, or side effects on in-flight runs. No contradiction with annotations.

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?

Two short sentences with the core action front-loaded and no filler. The trailing API endpoint reference is marginally useful metadata but slightly redundant with the tool name.

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 one-parameter toggle tool with no output schema, the description covers the essential action and state transition, and annotations carry the destructive safety signal. Missing only permission prerequisites and any note about in-flight runs.

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% with a single self-documenting 'schedule_id' parameter, so the baseline of 3 applies. The description adds no format or syntax detail beyond the schema (it even spells the path field 'scheduleId', a minor naming mismatch).

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?

States a specific verb+resource: resumes a paused schedule so it fires again. The pause/resume framing implicitly contrasts with trigger_deactivate_schedule, but that sibling is never named, so differentiation is inferred rather than explicit.

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?

'Resume a paused schedule' implies the precondition (the schedule must be paused), which is useful implied guidance. However, there is no explicit when-to-use, when-not, or naming of the deactivate alternative that would let an agent confidently route between the two.

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