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

Annotations already cover the safety profile (readOnly, idempotent, non-destructive, closed-world), so the description adds value by disclosing the payload scope and, crucially, warning that returned names and text are untrusted data rather than instructions — a genuine prompt-injection caveat not derivable from structured fields. It stops short of describing refresh semantics or how the pause state changes.

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?

Two sentences with zero waste: the resource and its contents come first, and the security caveat is a tight second sentence. Nothing is redundant with the title or annotations.

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 values need not be spelled out, yet the description usefully previews them. The only gap is guidance on when this workspace read is preferable to the sibling room/inbox reads, which an agent must infer.

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 and the schema is fully described, so there is nothing for the description to compensate for. Baseline 4 applies; the description correctly avoids inventing parameter details.

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 ('Read') and resource ('Central City workspace') and enumerates the payload (operator, agents, connections, pause state), so the agent knows exactly what it gets back. It does not name a sibling or explain how it differs from the many city_room_* read tools, which keeps it just 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?

'owner-granted' implies a precondition (the owner must have granted access), and the read framing implies usage as a state-discovery call. However, there is no explicit when-to-use statement, no exclusions, and no routing to alternatives among the large sibling set.

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