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

Annotations already cover the safety profile (readOnly, non-destructive, closed-world), and the description usefully adds the owner-only authorization constraint. It does not explain why a 'get all' operation takes a workspace_id scope, which leaves the caller's effective scope ambiguous.

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?

A single short sentence with the scope qualifier front-loaded and no filler. The only waste is the leading 'Get All Workspaces -' prefix, which merely restates the tool name.

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?

With an output schema, full annotation coverage and a fully documented single parameter, the structural burden is low and mostly met. The remaining gap is routing: nothing in the description lets an agent separate this tool from its near-identical sibling list_my_workspaces.

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 there is only one optional parameter, so the schema itself explains workspace_id and the default-workspace fallback. The description adds nothing on top of it, which is the baseline for full coverage.

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?

It states a specific verb and resource (retrieve workspaces) and a scope qualifier ('all accessible', 'owner only'). However, it never distinguishes itself from the sibling list_my_workspaces, which reads as the same operation, so an agent cannot tell which one to pick from the description alone.

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?

'(owner only)' is a genuine usage precondition that narrows who should call it. Beyond that there is no guidance on when to prefer this over list_my_workspaces, select_workspace, or create_workspace; the choice is left to inference.

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