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

Annotations already declare readOnlyHint, destructiveHint=false and idempotentHint=true, and the description adds meaningful context beyond them: it opens nothing by itself, it returns screens/buttons/fields, and it operates in the user's own Anaplan Cloud Browser. The trailing phrase 'Anaplan's official API: Yes' is cryptic and adds little.

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 behavior is front-loaded, but 'from ChatGPT, Claude or any AI agent' is filler and 'Anaplan's official API: Yes' is an unexplained fragment that reads like boilerplate. The semicolon-joined sentence cramming the execution step is harder to parse than two separate sentences would be.

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?

With no parameters and no output schema, the description does the necessary work by describing what is returned (step-by-step screens, buttons, fields) and clarifying that no action is taken. The remaining gap is how a zero-parameter tool identifies the target Anaplan model or workspace, which is left unaddressed.

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 the baseline is 4 and there is nothing for the description to disambiguate. The description correctly does not invent parameter detail for a schema that has none.

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 a specific resource (an Anaplan import file) and reveals that the tool returns step-by-step guidance rather than performing the upload. That clarification is valuable because the name 'upload_import_file' would otherwise mislead. It stops short of distinguishing itself from likely siblings such as anaplan_run_import or cotlet_upload_file, so the agent must infer the boundary.

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 clear sequencing hint — get the guide here, then execute with the cotlet_browser_* tools — which is real usage guidance. However, it never states when to prefer this over anaplan_run_import or cotlet_upload_file, nor any preconditions (e.g., a prepared source file), so the agent must guess at the alternative-selection rule.

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