register_contract_to_cash_cash_collection

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

Annotations already convey readOnlyHint=false, idempotentHint=true, and destructiveHint=false, so the description's only added behavioral signal is the word 'seal,' which implies finalization but is ambiguous about operational consequences (is it irreversible? does it trigger downstream payout/accounting effects?). With no contradiction to annotations, this is a missed opportunity to explain what the sealing action actually does to the referenced records.

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 nine-word sentence with zero filler, which satisfies brevity. However, this is under-specification rather than disciplined conciseness: the sentence omits so much context that its brevity comes at the cost of clarity. It is front-loaded with the action verb, but the verb choice ('seal') undermines the efficiency.

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 mutation tool with three required top-level parameters and a nested object of three UUIDs, one sentence is inadequate. Missing context includes the lifecycle stage at which this should be called, how it differs from attach_contract_to_cash_cash_collected, the prerequisites (e.g., that an invoice must already be issued and observations recorded), and the meaning of 'independent accounting and payout evidence' in operational terms. An output schema exists, so return values need not be documented, but the surrounding workflow is entirely unexplained.

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 0%, so the description carries the full burden of explaining the three required UUIDs. The phrase 'independent accounting and payout evidence' loosely maps to payment_observation_journal_id and settlement_observation_journal_id, but it never names them or explains how invoice_record_id, company_ref, and project_ref relate to the action. The description does not compensate for the absent schema documentation.

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 names a resource ('independent accounting and payout evidence') and an outcome ('as collected cash'), so an agent can tell this records a cash collection in the contract-to-cash lifecycle. However, the verb 'seal' is cryptic and metaphorical rather than a precise action like 'register' or 'record', and nothing distinguishes it from near-siblings such as attach_contract_to_cash_cash_collected or get_contract_to_cash_cash_collection. The name carries much of the meaning that the description should.

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?

No guidance is given on when to invoke this tool versus its siblings. There is no lifecycle context (e.g., must follow invoice issuance or payment observation), no prerequisites, and no mention of whether attach_contract_to_cash_cash_collected or register_contract_to_cash_invoice_issued should be used instead. An agent must infer where this fits in the contract-to-cash flow.

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