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

Annotations already declare the safety profile (readOnlyHint=false write, destructiveHint=false, idempotentHint=false, openWorldHint=false), lowering the bar. The description adds genuine value beyond them by disclosing the ownership assignment and that an organization id is returned for chaining. It says nothing about failure modes such as duplicate names or permission requirements, so it stays at 3.

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 short sentences, front-loaded with the core action and immediately followed by the useful output-chaining note. No filler, no repetition of schema contents.

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 one-parameter create tool with annotations covering the safety profile and no output schema, the description covers purpose, ownership side effect, and how to consume the returned id. Only minor gaps remain, such as duplicate-name handling or required scopes, so it is nearly complete.

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% for the single 'name' parameter, including the max-80-characters constraint, so the schema fully documents it. The description adds no parameter-level detail (e.g., uniqueness or accepted characters) beyond what the schema already states, making the baseline 3 correct.

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 uses a specific verb+resource ('Create a new organization') and adds the ownership side effect ('authenticated user as the owner'). The resource name cleanly distinguishes it from create-project-tool, create-brand-tool, and the get/list/update/delete-organization siblings. It stops short of explicitly contrasting with any sibling, so it lands at 4 rather than 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?

There is no explicit when-to-use or when-not-to-use statement, nor any named alternative. Usage is only implied by the verb 'create' and by the note that the returned id can be reused in later calls. Adequate for such a self-evident operation, but it provides no real routing guidance.

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