add_work_items_to_cycle

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

Annotations already declare readOnlyHint false and destructiveHint false. The description adds that the tool is additive and requires existing work item UUIDs, but it does not disclose side effects such as whether duplicate items are allowed or whether the operation replaces the existing cycle contents. This is adequate but not deeply transparent.

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 two short sentences, action-first, with no fluff. The second sentence provides practical sourcing guidance for the required IDs, making every word earn its place.

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 simple additive operation with three required parameters, the description offers sufficient context for an agent to select and invoke the tool: it names the action, tells what to provide, and where to get the IDs. It omits project_id explanation and return behavior, but these are minor gaps for this use case.

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 0%, so the description must compensate. It explains issue_ids as an array of work item UUIDs and points to list_cycles for cycle_id, but project_id is not mentioned at all. Partial compensation; two of three parameters receive added meaning.

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 action ('Add work items to a cycle') with a specific verb and resource. It distinguishes itself from sibling tools like remove_work_item_from_cycle and transfer_cycle_work_items by explicitly framing this as an additive operation.

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 concrete usage context by directing users to get work item IDs from list_work_items and cycle_id from list_cycles. It implicitly shows when to use this tool (when adding existing items) but does not explicitly contrast with removing or transferring items.

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