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

Annotations already declare readOnlyHint=true, openWorldHint=false, and destructiveHint=false, so the safety profile is covered. The description adds useful behavior: results are ordered most recently viewed first and include specific fields like Panel count, archived status, and link. Pagination or result limits are not mentioned, which keeps it from a 5.

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?

It is a single well-structured sentence with the primary operation front-loaded and the return fields and filtering behavior compactly appended. No sentence is wasted.

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 read-only list tool with no output schema, the description is complete enough: it states what is listed, the ordering, the optional filter semantics, and the fields returned. An agent has everything needed 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 0%, so the description must explain the parameter, and it does: a query restricts results to Workspaces whose name contains every word. That is meaningful matching semantics beyond the bare string type. Case sensitivity and empty-query behavior are unspecified.

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 ('List the user's Workspaces') and immediately adds scope, ordering, and return fields. It is clearly distinguishable from single-workspace siblings like read_workspace or write siblings like create_workspace.

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?

It clearly establishes the default behavior (list all Workspaces) and explains the optional query filter. It does not explicitly name alternatives such as find or read_workspace, but the context for when to use this listing tool is unambiguous.

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