batch_estimate_plate_part_costs

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

No annotations exist, so the description bears the full burden. It discloses the entitlement gate (Business tier required), which is genuine behavioral context an agent cannot get from the schema, but it says nothing about whether the call is read-only, how errors surface on unlicensed accounts, or the cost/rate-limit profile of a batch operation.

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 purpose sentence is front-loaded and tight, but the trailing marketing copy ('3 printers (grow to 50)') and the pricing upgrade URL do little for an agent deciding how to call the tool, consuming roughly half the text.

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 five parameters, an untyped required array, no output schema, and no annotations, the description should explain the 'items' structure and what comes back (per-part cost fields). It instead spends its budget on tier upsell, leaving an agent unable to construct a correct call from the description alone.

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?

Schema coverage is 60%, and the description adds no parameter information at all. The lone required parameter, 'items', is typed as an untyped array (`items: {}`), and 'cost_per_kg_usd' has no description either; the phrase 'many sliced plates' only loosely hints at the item shape and does not compensate for the documentation gaps.

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?

Specific verb+resource: batch-estimates per-part economics across many sliced plates. The plural 'many sliced plates' implicitly distinguishes it from the singular sibling estimate_plate_part_costs and from estimate_batch_cost, though no sibling is named explicitly.

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?

The 'Requires Kiln Business' line functions as a real prerequisite/gating condition, which is useful call-selection guidance. However, there is no statement of when to prefer this over estimate_plate_part_costs or estimate_batch_cost, so usage is only implied.

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