mfc_ca_postJournals

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

With no annotations provided, the description carries the transparency burden. It does disclose that this is a book-writing operation requiring user approval (帳簿書き込み。要ユーザー承認). However, it does not mention what happens on approval/denial, reversibility, errors, or response behavior.

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 compact sentence that is front-loaded with the core purpose and adds a key behavioral constraint in the parenthetical. There is no wasted 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?

Despite the rich schema, this is a write operation with no output schema, no annotations, and several sibling posting tools. The description omits how the approval flow works, what the tool returns, and how it differs from related posting tools, leaving important context gaps.

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 input schema provides 100% description coverage for both parameters, including a detailed nested journal object specification. The tool description itself adds no parameter semantics, so the baseline of 3 is appropriate.

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 states a specific verb and resource: it creates journal entries (仕訳を作成します) and adds that it writes to the books. It is clear, but it does not explicitly differentiate itself from siblings like mfc_ca_putJournals or other posting tools beyond the create verb.

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 use this tool versus alternatives such as mfc_ca_putJournals, mfc_ca_postTransactions, or mfc_ca_postVouchers. There are no prerequisites, exclusions, or workflow hints.

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