rename_slice

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It merely states the action without revealing side effects, required permissions, reversibility, or consequences for associated data. The presence of required parameters like 'effort' and 'work_slice' hints at deeper semantics that are left unexplained. This is inadequate for an operation that likely mutates state.

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?

While the three-word sentence is technically concise, it is underspecified to a fault. It lacks necessary context about the tool's operation, parameters, and usage. Conciseness should serve clarity, not sacrifice it. This is not efficient conciseness but minimalism without substance.

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 tool with three required parameters, no schema descriptions, no annotations, and multiple sibling slice operations, the description is grossly incomplete. It does not explain what a 'slice' is, how 'effort' relates to 'work_slice', what the expected return value is, or any edge cases. The absence of any contextual guidance makes correct invocation nearly impossible for an agent.

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 adds no explanation for any of the three parameters (title, effort, work_slice). The schema only provides types and names, leaving agents to guess the meaning and relationship between them. The description fails to compensate for the missing schema documentation, making it impossible to know how to fill parameters correctly.

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 ('Rename') and resource ('a slice'), which clearly conveys the core action. It distinguishes this tool from sibling slice operations (add_slice, close_slice, drop_slice) because 'rename' is semantically distinct from add/close/drop. However, it lacks explicit differentiation context, so it doesn't reach a 5.

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?

There is no guidance on when to use this tool versus alternatives, no mention of prerequisites, and no indication of expected effects or warnings. The description 'Rename a slice' provides zero usage context. This is a complete absence of usage guidance.

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