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

Annotations already declare readOnlyHint, openWorldHint=false, idempotentHint and destructiveHint=false; the description reinforces this with 'opens nothing by itself', which is the key behavioral fact an agent needs before calling. It additionally discloses the return content shape (ordered steps with screens/buttons/fields) and the downstream tool family to use. The dated API note adds provenance but not behavior.

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 critical facts are front-loaded: what it returns, that it performs no action, and the follow-up tool family. The trailing official-API sentence is longer than needed and tangential to invoking the tool, slightly diluting an otherwise tight two-part structure.

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 zero-parameter, read-only guidance tool with no output schema, the description covers what comes back, that nothing is executed, and which tools perform the actual work. The only minor gap is not stating that the guide is generic rather than scoped to a particular repair order, which an agent might assume from the name.

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 and no schema semantics to explain, the description's only obligation is to make clear that no input is required, which it does by describing the tool as a generic how-to guide. Baseline 4 applies for a 0-param tool.

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 the resource (a Tekmetric repair order) and, crucially, clarifies that the tool returns step-by-step instructions ('screens, buttons, fields') rather than data — resolving the ambiguity in the name/title 'Get repair order'. It distinguishes itself from the cotlet_browser_* tools by saying it 'opens nothing by itself' and hands off to them, though the opening sentence still reads initially like a data-fetch tool.

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 gives clear context: first call this to get the steps, then execute with the cotlet_browser_* tools in the user's Tekmetric Cloud Browser. It also names the official API path (api.tekmetric.com) and explains why it is not used (application-gated by Tekmetric), giving the agent a reason to prefer this tool. It stops short of explicit when-not-to-use cases or a named sibling for actually reading repair order data.

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