create_free_posting

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

No annotations are provided, so the description carries the full burden. It only states 'creates' without disclosing side effects, required permissions, reversibility, or whether it validates posting accounts and VAT keys. This is insufficient for a mutation tool with 9 parameters.

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 description is a single short sentence in German, which is efficient. However, it lacks structure such as examples or sub-bullets, but for a simple purpose it is appropriately concise.

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?

Given the tool has 9 parameters, 6 required, no output schema, and no annotations, the description is minimal. It does not explain what a 'free posting' is, how VAT keys work, or what the response will be. For a potentially complex accounting operation, this is somewhat incomplete.

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 baseline is 3. The description adds a bit by naming 'Soll- und Habenkonto' which maps to postingaccount_debit and postingaccount_credit, but it does not explain semantics of 'freie Buchung' or VAT keys beyond schema. Slight enhancement over schema, but not substantial.

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 clearly states the verb 'Erstellt' (creates) and resource 'freie Buchung' (free posting) with Soll- und Habenkonto (debit and credit account). It is specific enough to distinguish from siblings like 'create_receipt' or 'create_invoice', though it could elaborate on 'free' meaning unlinked to existing documents.

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 usage for creating a free posting with debit and credit accounts, but provides no explicit guidance on when to use this tool over alternatives like 'create_invoice' or 'create_transaction'. There is no mention of prerequisites or exclusions, but the context of posting accounts is clear.

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