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

Annotations already indicate this is a non-read-only, non-destructive mutation. The description adds the specific effects (renaming and date shifts) but does not disclose constraints such as date ordering, partial-update behavior, or side effects on scheduled work. 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 a single efficient sentence with no filler. It front-loads the action and clearly communicates the two supported update operations without redundancy.

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 four-string-parameter update tool, this is close to sufficient: the required cycleId is in the schema and the description covers the mutable fields. However, the date format and whether startsAt/endsAt must be supplied together are left unspecified, and there is no output schema to clarify the return behavior.

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%, so the description carries the burden of explaining parameters. It maps 'rename' to name and 'move its dates' to startsAt/endsAt, adding meaningful semantics beyond the raw schema. It does not explicitly identify cycleId or describe the expected date format, which prevents a 5.

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 states a specific verb and resource: 'Rename a sprint or move its dates.' It clearly distinguishes this tool from sibling tools such as create_cycle, complete_cycle, and delete_sprint by naming the exact actions it performs.

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 implies when to use this tool: whenever an existing sprint's name or dates need to change. However, it does not explicitly contrast it with alternatives like create_cycle or start_cycle, so the usage context remains inferable rather than explicit.

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