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

Annotations already declare readOnlyHint=false, openWorldHint=false, idempotentHint=false, and destructiveHint=false. The description adds two useful facts beyond the annotations: the operation costs nothing, and the returned listingId must be threaded into later calls. It does not restate safety traits, which is appropriate, though it could clarify non-idempotency explicitly.

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?

Four compact sentences, each earning its place: purpose, title handling, downstream linking, and cost. The most important guidance is front-loaded and there is no filler.

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?

There is no output schema, but the description covers the critical return value ('listingId') and how to use it. Combined with the single optional parameter and full schema coverage, an agent has everything needed to call this correctly.

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 coverage is 100%, so the baseline is 3, but the description adds operational meaning: ask the user once for the property name, pass their words as title, and omit it if they skip. This is more than the schema's example and directly guides correct invocation.

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 specific verb and resource ('Create a property folder') and clarifies scope with examples ('a set of listing photos, a walkthrough'), distinguishing it from per-image sibling tools. An agent can immediately tell this is the container-setup step.

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?

It explicitly says when to use it ('before work on a whole property'), how to handle the optional title (ask once; omit if skipped), and what to do next ('Pass the returned listingId to the tools'). This is a complete usage recipe with no inference required.

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