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

Annotations already declare readOnlyHint, idempotentHint, non-destructive, and closed-world, so the safety profile is covered. The description adds useful behavioral context beyond that: the payload is a fillable CSV template scoped to the work hierarchy and it is a preparatory step, not an import itself. It does not say whether the template is static or shaped by existing data, which is a minor remaining gap.

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?

Two sentences, front-loaded with what is returned, followed immediately by the actionable next steps. Nothing is redundant or buried.

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 tool with rich annotations and no output schema, the definition supplies enough: what comes back (a CSV template), what it covers, and the workflow that follows. Only the exact template shape/columns is left unspecified, which is a small gap given no output schema exists.

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. The description correctly implies no input is needed and instead directs effort toward the template's contents and the follow-up calls.

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 ('Return the CSV template for bulk-importing the work hierarchy') and enumerates the covered entities (customers, projects, tasks, subtasks). It also implicitly positions itself ahead of validate_import/commit_import, so an agent can tell what it does and where it sits relative to those siblings.

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?

Gives an explicit usage sequence: fill the template, then call validate_import, then commit_import. That is actionable ordering rather than vague context. It stops short of saying when NOT to use it (e.g., that bulk_create_time_reports or bulk_update_cost_rates handle other bulk paths), so it is not a full when/when-not treatment.

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