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

The readOnlyHint, idempotentHint and openWorldHint=false annotations already set the safety profile, and the description reinforces it by stating the tool opens nothing by itself. It also adds context about Freshchat having a REST API but no official MCP server. It does not describe the length or format of the returned steps.

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 routing information is front-loaded, but the trailing sentence about Freshchat's REST API and lack of an MCP server is tangential to tool selection and inflates the definition. The long compound opening sentence also reduces readability.

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-param guidance tool with annotations covering safety, the description explains conceptually what is returned and how to continue. However, it omits what the steps cover and how large the payload is, leaving the agent guessing about the output.

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?

Zero parameters, which is the baseline 4; the description correctly implies no inputs are needed and introduces no confusion about arguments.

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?

States a specific verb and resource ('Send reply in Freshchat') and immediately clarifies the tool does not perform the action, returning step-by-step screens/buttons/fields guidance instead. This distinguishes it from mutating freshchat_* siblings, though the target conversation/message is unspecified.

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?

Clear routing: call this for guidance, then execute with cotlet_browser_* in the user's Freshchat Cloud Browser. The statement that it 'opens nothing by itself' is useful when-vs-when-not context, but it does not explicitly rule out alternatives such as cotlet_app_guide.

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