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

Annotations already indicate readOnlyHint=true, idempotentHint=true, and destructiveHint=false, so the safety profile is clear. The description adds no additional behavioral context beyond listing the content, such as freshness, pagination, or response shape. This matches the baseline where annotations cover the behavioral burden.

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 description is a single, front-loaded sentence that wastes no words. It names the resource first and then gives a clean list of contained data, making it easy for an agent to scan and act on.

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?

The title mentions 'credentials' but the description's content list omits it, creating a slight mismatch that could mislead an agent about what data is included. While the output schema exists and can fill in return details, the description itself is not fully complete relative to the title's promise.

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?

With zero parameters, the schema fully covers parameter semantics by having none. The description adds value by indicating what information will be returned, even though there is no input to configure. This aligns with the 0-parameter baseline of 4.

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 clearly states the specific action ('Get') and resource ('Kolmo Construction company information'), then enumerates the content fields (contact details, hours, service area, specializations, tools). This is a specific verb+resource pair that is distinguishable from siblings like get_service or get_author_bio by its focus on the company as a whole.

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?

The description gives no guidance on when to use this tool versus alternatives. It does not mention conditions, exclusions, or related sibling tools, leaving the agent to infer that it should be used whenever company-level information is needed. With a long sibling list, explicit routing would be valuable.

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