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

Annotations already declare readOnlyHint, idempotentHint, and non-destructive behavior, so the safety profile is covered. The description contributes the useful scope constraint that results are limited to workspaces assigned to the caller, but says nothing about return shape or pagination semantics beyond what the schema and output schema provide.

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 short sentence with no filler, which is appropriately sized. The grammar is awkward ('list video workspace which are assigned'), slightly reducing clarity, and it lacks any structural separation for scope versus usage.

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 read-only list endpoint with full annotation coverage, an output schema, and fully documented params, the description provides enough to invoke it correctly. The main missing piece is routing guidance relative to sibling list/get tools.

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%, with size and offset fully documented in the schema (including a worked example for offset). The description adds no parameter-level meaning, which is acceptable given the schema already carries the load, 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 states a clear verb+resource (list video workspaces) and adds a scoping qualifier ('assigned to the user or token') that narrows what is returned. However, it does not differentiate from nearby siblings like list_live_workspaces or get_workspace, leaving ambiguity about which list operation to pick.

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?

There is no guidance on when to use this tool versus alternatives such as get_workspace (single) or list_live_workspaces (live-specific). The 'user or token' scope is stated as a fact rather than as a condition for selecting this tool, so the agent must infer usage from the name alone.

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