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

Beyond the annotations, it discloses that the tool 'opens nothing by itself' and returns procedural content (screens, buttons, fields), which is exactly the behavioral detail an agent needs. The closing remark about BrightLocal's REST API and official MCP server adds context but stops short of saying whether that path should be preferred.

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 disclosure is compact and useful, but the opening 'from ChatGPT, Claude or any AI agent' is filler and the final sentence about the official API and 'BrightLocal Anywhere' is under-explained and arguably out of place. The most important fact — that it returns a guide, not data — arrives second rather than front-loaded.

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 guide tool the description covers the essential loop (get instructions, then act via cotlet_browser_* tools), and no output schema is needed. However, it leaves unresolved the key ambiguity with the sibling 'list_locations' tool and does not describe what the returned guide looks like or its scope.

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 and the schema is fully self-describing (additionalProperties: false, empty properties), so there is no parameter meaning the description needs to supply. Baseline 4 applies.

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 sentence states the goal ('List locations in the user's own BrightLocal account'), but the second reveals the tool actually returns step-by-step instructions rather than location data. It never distinguishes itself from the sibling 'list_locations' tool, so an agent cannot tell from the description alone which one yields real data versus a how-to 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?

It does give a next step — 'then do it with the cotlet_browser_* tools in the user's BrightLocal Cloud Browser' — which implies a guide-then-browse workflow. But there is no when-not-to-use guidance and no routing against the sibling 'list_locations' or the advertised official API/MCP, leaving the selection decision ambiguous.

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