list_workspaces

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

No annotations are provided, so the description carries the full behavioral burden. It signals a read-only enumeration and describes the returned fields (id, name), but says nothing about pagination, result limits, or ordering for accounts with many workspaces.

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?

Three short sentences with no filler, ordered as purpose, return value, then usage cue. Every sentence earns its place and the most important information is front-loaded.

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 no output schema and no annotations, the description usefully fills the gap by naming the returned fields and explaining why the tool matters in the workflow. Only pagination/limits remain unspecified, which is a minor omission for a simple list tool.

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?

The tool takes zero parameters, which is the baseline-4 case; there is nothing for the description to clarify beyond what the empty schema already shows. The mention of workspace_id correctly refers to output, not an input.

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?

States a specific verb+resource with scope: "List all workspaces in your CanvasKeep account." The purpose is unambiguous and an agent can immediately tell it apart from create_workspace by the 'list' verb, but the description never explicitly contrasts itself with any sibling, so it stops short of 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?

"Use this first to find the workspace_id needed by other tools" gives clear sequencing guidance and names the reason to call it. There are no explicit when-not-to-use conditions or named alternatives, but for a prerequisite lookup tool the context is effectively complete.

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