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

The annotations already declare readOnlyHint, idempotentHint, destructiveHint=false and openWorldHint=false, so safety is covered. The description adds one genuinely useful fact beyond them: the tool "opens nothing by itself" and returns procedural guidance rather than acting. The trailing paragraph about Spectora's official API and its limits on scheduling is unrelated to listing clients and adds noise rather than behavioral insight.

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 two sentences are front-loaded and efficient, but the third sentence about the official API, the read-only MCP server, scheduling and a "checked 28 Oct 2026" date stamp does not earn its place in a tool that lists clients. It distracts from the actual call procedure.

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 tool with annotations and no output schema, the essentials are present: what it returns and what to do next. It still leaves an ambiguity about whether any actual client data comes back or only instructions, and it never mentions account connection or authentication prerequisites for a tool scoped to "the user's own Spectora account."

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?

The tool takes zero parameters, so there is nothing for the description to disambiguate; the baseline of 4 applies. No parameter-level guidance is needed or missing.

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 first clause names a specific verb and resource ("List clients in the user's own Spectora account"), and the second clause discloses the real output: step-by-step instructions with screens, buttons and fields. The one weakness is that the opening reads like a data-returning list tool, so an agent only learns this is a guidance tool by reading the next sentence; the resource does at least self-differentiate from list_agents and list_inspections.

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 a concrete follow-up path: get the steps here, then execute them with the cotlet_browser_* tools in the Spectora Cloud Browser. What is missing is an explicit exclusion — it never says when to skip this and use cotlet_app_guide or another guide tool instead.

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