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

Annotations already declare readOnlyHint=true and destructiveHint=false, so the description's explicit statement that the tool 'opens nothing by itself' reinforces and clarifies that profile rather than contradicting it. It also adds genuinely new behavioral context: the return payload is step-by-step instructions with screens, buttons and fields, and the official RazorSync API is unusable because tokens come only from RazorSync support — which explains why browser automation is the intended path.

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 core sentence is well front-loaded, but the closing paragraph about RazorSync's official API and the 'checked 8 Nov 2026' caveat is padded and partially redundant once the browser-route instruction is given. It is serviceable but a sentence or two longer than necessary.

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 guide tool with no output schema, the description covers what is returned (screens, buttons, fields), what it does not do (opens nothing), and the follow-up tool family. Missing is any statement about required setup — a live RazorSync Cloud Browser session and authenticated account — which an agent would need before calling.

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 100% schema coverage, the baseline is 4; the description correctly adds no parameter discussion because there is nothing to parameterize. It could have noted that the target account/technician is inferred from the active browser session rather than supplied, but the absence of params makes this a minor gap.

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 names a specific action and resource ('Schedule technician in the user's own RazorSync account') and immediately corrects a likely misreading by stating it 'Returns how to do it in RazorSync step by step... and opens nothing by itself.' An agent learns this is a guidance-producing tool rather than an executor. It loses a point because the name/title framing ('Schedule technician') still sounds like it performs the action, and the description never distinguishes this tool from the sibling cotlet_app_guide.

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 a clear handoff instruction: use this first, 'then do it with the cotlet_browser_* tools in the user's RazorSync Cloud Browser.' But there is no guidance on when not to use it, no mention of prerequisites (an existing Cloud Browser session, being logged into RazorSync), and no differentiation from cotlet_app_guide, which appears to serve a similar guide-retrieval role.

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