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

The annotations already establish that this is a non-read-only, non-destructive, closed-world mutation. The description adds two meaningful facts beyond that: partial payloads are acceptable and owner authentication is required. It still omits the key mutation semantics for an all-optional schema, namely what happens to fields not provided.

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?

The text is short and has no obvious filler, but it is structured as a sentence fragment followed by two terse operational notes. The field list comes before any clear action statement, so it is not as front-loaded as it could be.

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 mutation tool with five all-optional parameters, nested address data, no output schema, and only non-destructive annotations, the description should clearly state whether this is a partial update and what happens to omitted fields. It hints at partial updates with 'Send only what you have' and names the auth requirement, but leaves the core update semantics ambiguous.

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 80%, so the schema already documents all five top-level parameters, including the nested address fields. The description enumerates the same fields and adds only the 'send only what you have' partial-update hint, so it does not add substantial meaning beyond the structured schema.

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 lists the company fields being set (legal name, mailing address, billing e-mail, website, time zone), which makes the resource clear, but it never states the action in a verb phrase. The title and tool name imply 'set company details,' but the description itself does not distinguish this from siblings such as set_venue, set_logo, or set_team.

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?

'Send only what you have' gives useful partial-update guidance, and 'Needs the owner's sign-in' states an authorization prerequisite. However, it does not say when to choose this tool over related settings tools or clarify whether omitted fields are preserved or cleared.

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