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

With no annotations provided, the description carries full burden for behavioral disclosure. While 'Rename' implies a mutation operation, it doesn't disclose important behavioral traits like required permissions, whether the rename is atomic/reversible, what happens to notes in the renamed category, or error conditions (e.g., if new_name already exists).

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 extremely concise with zero wasted words. It uses a clear two-sentence structure: first stating the purpose, then listing parameters with brief explanations. Every sentence earns 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?

Given this is a mutation tool with no annotations, 0% schema description coverage, but with an output schema present, the description is minimally adequate. It explains what the tool does and documents parameters, but doesn't provide important context about behavioral implications or error handling that would be needed for safe usage.

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%, but the description explicitly documents both parameters with brief explanations ('Current name of the category', 'New name for the category'). This adds meaningful semantics beyond the bare schema, though it doesn't provide format constraints, length limits, or character restrictions.

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 ('Rename') and target resource ('an existing category inside Notes'), providing a specific verb+resource combination. However, it doesn't explicitly differentiate from sibling tools like 'create_category' or 'delete_category' beyond the rename action itself.

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 no guidance on when to use this tool versus alternatives. It doesn't mention prerequisites (e.g., category must exist), when not to use it, or compare it to related tools like 'create_category' or 'delete_category' from the sibling list.

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