wafeq_cost_centers_create

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

Annotations already flag this as a write operation (readOnlyHint=false) and non-idempotent (idempotentHint=false). The description adds value beyond those flags by spelling out the concrete consequence ('calling twice creates two records') and explaining the idempotency_key retry-safety mechanism. There is no contradiction with the annotations.

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 opening marker line ('🟡 WRITE · creates data · Cost Centers · POST /cost-centers/') is an efficient, front-loaded summary that conveys classification and endpoint in one glance. However, 'Create cost center' and 'Endpoint for creating a new cost center' redundantly restate the same idea, adding minor waste to an otherwise compact definition.

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 simple create operation with full schema coverage and annotations covering the safety profile, the description covers the most important behavioral detail — non-idempotency and retry safety. It does not describe the response format (no output schema exists) or auth requirements, but those gaps are minor for this straightforward POST endpoint.

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 description coverage is 100%, so the schema already documents both parameters, including the idempotency_key header behavior and the required body fields. The description adds only a brief framing of idempotency_key for retry safety, which is helpful but largely redundant with the schema's detailed parameter descriptions.

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 the exact operation (create), the resource (cost center), and the HTTP endpoint (POST /cost-centers/), making it clearly distinguishable from sibling cost center operations like list, retrieve, update, and destroy. The write classification and endpoint path add specificity beyond what the tool name alone conveys; it is not a mere tautology.

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 description implies its use case — creating a new cost center — and gives retry guidance via idempotency_key, but it never explicitly states when to create versus update an existing cost center or names any alternative. No exclusions or when-not-to-use conditions are provided, leaving the decision to inference.

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