tokportal_reactivate_account_managed_subscription

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

The description goes beyond annotations (which only indicate readOnlyHint=false, etc.) by detailing critical behavioral traits: that charges are exact and without extra periods, atomic checks on credits/period_end/lock_version, and that scheduled videos get new dates. This fully compensates for the lack of annotation-based behavioral signaling.

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 concise and well-structured, with a leading sentence summarizing the core action, followed by a clear sequence of behaviors. Each sentence adds specific information without redundancy, earning its place in the description.

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?

Given the tool's complexity (3 parameters, nested objects, no output schema), the description fully covers the reactivation process, preconditions (explicit snapshot), edge cases (lapsed state), and side effects (video rescheduling). There is no missing critical information for an agent to invoke this tool correctly.

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?

The input schema already covers 100% of parameters with descriptions, so the baseline is 3. The description adds value by explaining the role of the expected parameters ('from the latest Coverage snapshot'), but does not elaborate on each parameter's specific meaning beyond what the schema provides, making this a solid 4.

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 tool reactivates TokPortal Coverage from an explicit GET snapshot, specifying the verb (Reactivate), resource (Coverage), and unique context (from a GET snapshot). It distinguishes this tool from siblings like tokportal_cancel_account_managed_subscription, which covers cancellation, by focusing specifically on reactivation.

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 clear context on when to use this tool: for reactivating coverage, especially around the current_period_end period to handle lapsed states, and notes that reactivation is free within a paid period. However, it does not explicitly state when not to use it or name alternatives (e.g., considering cancellation or using a different snapshot), so a slight gap exists.

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