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

Annotations already declare readOnlyHint=true, destructiveHint=false, and openWorldHint=false, so the safety profile is covered. The description adds useful domain context about branding inheritance ('Its QR landing pages use that branding over the workspace's') but says nothing about permissions, error behavior when the id is unknown, or response shape.

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 tight sentences with the core operation front-loaded; the branding detail is placed after the primary action. No filler or repetition of the title.

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?

With no output schema, the description carries the burden of describing the return value and does so partially by listing branding fields (primaryColor, accentColor, logoUrl, fontFamily). Missing only edge-case behavior such as not-found handling, which is minor for a simple annotated read.

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 description coverage is 0%, so the description must compensate for the single undocumented 'id' parameter. Saying 'by id' clarifies that the id identifies a company (versus some other entity id), which is marginally useful, but no format, validation, or lookup behavior is described beyond what the schema's uuid format already conveys.

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 ('Get one company by id'), and the word 'one' implicitly separates it from companies_list. It does not name a sibling alternative explicitly, but an agent can identify the operation unambiguously.

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 when-to-use guidance, no prerequisites, and no mention of alternatives such as companies_list or company_profile_get. The second sentence describes branding inheritance but does not help an agent decide when to call this tool rather than a sibling.

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