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

Annotations already declare readOnly/idempotent/non-destructive, so safety is covered. The description adds genuinely new information: there is no deletion receipt and an out-of-Workspace Agent is indistinguishable from an absent one, which materially changes how an agent should interpret the result.

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 compact sentences, front-loaded with the core operation before the interpretive caveats. No filler, though the second sentence could be tightened into the third without loss.

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?

An output schema exists, so return-value shape need not be explained, and the description supplies the critical interpretive limits. The main remaining gap is how this differs from agent_removal_impact, which an agent would likely want to know.

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?

Only one parameter, agent_id, and schema description coverage is 100% with a note pointing to agents_list or agent_create. The description adds nothing about the parameter, which is acceptable given the schema already handles it fully.

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 and resource: reads whether an Agent is currently visible in the authorized Workspace. That is clearly a status/visibility read, distinct in kind from agent_remove or agent_removal_impact, though the description never names those siblings to sharpen the boundary.

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 caveats imply the intended usage (post-removal verification where a definitive answer is unavailable), but there is no explicit when-to-use or when-to-prefer alternative such as agent_removal_impact or agents_list. Guidance is inferred rather than stated.

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