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

The annotations already carry a behavioral signal (destructiveHint=true, title), so the bar is lower. The description usefully adds that activation restores firing behavior, but says nothing about side effects, reversibility, permissions, or the conflicting nuance of a 'destructive' hint on a resume operation.

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, effect stated first, API endpoint appended as secondary reference. Nothing is redundant and the key information is front-loaded.

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 single-parameter, annotation-backed tool with no output schema, the description covers purpose and effect adequately. Minor gaps remain: no error/edge-case behavior (already active, nonexistent schedule) and no return indication.

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?

There is exactly one parameter and schema description coverage is 100%, so the schema already documents schedule_id fully. The description adds no format, ID-source, or lookup guidance beyond what the schema 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?

States a specific verb (activate/resume) and resource (a paused schedule) plus the observable effect ('so it fires again'). It implicitly contrasts with the sibling trigger_deactivate_schedule through the 'paused' precondition, but never names that alternative, so differentiation is left to inference.

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 usage context (the schedule must already be paused), but there is no explicit when-to-use/when-not guidance, no mention of the deactivate sibling, and no statement about what happens if the schedule is already active.

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