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

Annotations already signal destructiveHint=true, so the description only needed to add useful context. It does so by disclosing that unfinished work rolls into the next sprint rather than being left behind, which is the key behavioral consequence beyond the annotation. It could mention reversibility or permissions, but the core destructive trait is already covered.

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 sentences with the primary action front-loaded. The second sentence earns its place by explaining what happens to unfinished work. There is no filler or redundant restatement of the schema.

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 destructive close operation, the description plus destructiveHint and the self-explanatory cycleId provide enough to call the tool correctly. The main gap is orienting the agent against related cycle/sprint tools, but that is more of a usage-guidance issue than an invocation blocker.

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 description coverage is 0%, and the description never mentions cycleId directly. 'Close a sprint' lets an agent infer that cycleId identifies the sprint, but it adds no explicit parameter meaning, format guidance, or value constraints. Because the schema is bare and the description does not compensate, this is below baseline.

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 uses a specific verb and resource: 'Close a sprint.' This clearly distinguishes completion/closure from sibling actions such as start_cycle, create_cycle, update_cycle, and delete_sprint. The title 'Complete a sprint' reinforces the lifecycle action.

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 phrase 'Close a sprint' implies this is for ending a sprint, and the second sentence explains the rollover consequence. However, the description does not explicitly say when to prefer this over related tools like update_cycle or start_cycle, and it offers no exclusions or prerequisite guidance.

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