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

The description discloses an important failure behavior: the operation fails if the new slug is already in use. It does not contradict the annotations, though it does not mention other side effects or permission requirements.

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 with no redundant or irrelevant content. It is focused, front-loaded, and easy to parse.

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 rename operation, the description provides enough context: it names the resource, the field being changed, and a key constraint. It does not mention the output or return value, but given the low complexity and presence of an output schema, this is not a significant gap.

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 tool-level description largely repeats information already present in the parameter schemas for schedule_id and new_slug. It adds little beyond the schema descriptions, so the parameter semantics are adequately covered but not enhanced.

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 specific action (rename), the target resource (schedule's slug), and the unique per-tenant nature of the slug, making the tool's purpose unambiguous. This also implicitly distinguishes it from broader update operations like update_schedule.

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 use for renaming a schedule slug, but it does not explicitly compare with sibling tools such as update_schedule or rename_app_slug. The failure condition is stated, but no direct guidance is given on when to prefer this tool over alternatives.

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