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

The description adds an ownership requirement that goes beyond the annotations, which is useful behavioral context. But it does not elaborate on side effects or permission details beyond that, and the annotations already declare idempotentHint=true and destructiveHint=false, so the additional disclosure is modest.

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 that states the action and a key constraint. No filler or redundancy, and it is front-loaded with the verb and resource.

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 2-parameter tool with complete schema documentation and safety annotations already present, the description covers the essential usage context (ownership). It does not need to restate schema or annotation details, so it is adequately complete for an agent to call it correctly.

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 100%, and both parameters ('name', 'workspace_id') are already well-documented in the input schema with clear descriptions. The tool description adds no further parameter-level meaning, so the baseline of 3 applies.

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 ('Rename') and resource ('a workspace'), plus a clear ownership constraint. It is immediately distinguishable from siblings like create_workspace, switch_workspace, or delete_workspace, and there is no other rename tool among the siblings.

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 'you own' provides a clear precondition and context for when to use this tool. However, it does not explicitly name alternatives or state when not to use it, so it falls short of full exclusion guidance.

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