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

Annotations already declare readOnlyHint=true, destructiveHint=false, and openWorldHint=false, so safety is covered by structured data. The description adds almost nothing beyond that: it doesn't disclose the 30-day default window, ordering (recent-first?), pagination via cursor, or what a 'history' record contains, all of which would be genuinely new information.

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?

It is certainly compact and front-loaded, but this is under-specification rather than effective conciseness. A few more words naming the entity scope and the status/search filters would cost little and remove most of the ambiguity.

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-value shape is covered, but the tool takes five optional filters with zero documented semantics and overlaps with several sibling task tools. For that complexity, the description is materially incomplete and leaves the agent unable to choose filters confidently.

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?

All five parameters (days, limit, cursor, search, status) have 0% schema description coverage, so the description carries the full burden and fails it. Only 'recent' faintly gestures at the days window; limit, cursor, search, and status — including what values status accepts — are wholly unexplained.

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 verb ('List') and a noun phrase ('recent create/copy history'), so an agent can infer it returns past create/copy operations. However, it is a bare 5-word fragment that never says which entity type's history (ads, campaigns, structures) or in what order, and it doesn't distinguish itself from close siblings like tasks_list, tasks_latest, or tasks_get_create_detail.

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?

There is no when-to-use guidance and no mention of the alternatives (tasks_list, tasks_latest, tasks_get_create_detail) even though they plausibly overlap. The agent is left to guess whether this is a filtered view of tasks_list or a separate history log.

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