マスター取り込み状況

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

No annotations were provided, so the description carries the full disclosure burden. It discloses that the tool is a read-style status query returning a list with publication dates, which is implicitly non-mutating. However, it does not explicitly state read-only behavior, permissions needed, or any quirks about the returned data. The behavior described is minimal but consistent with the tool's apparent nature.

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?

A single, tight sentence that states the purpose and return content with zero wasted words. The key information (returns locally-imported master list and publication dates) is front-loaded and immediately actionable.

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?

An output schema exists and the tool has no parameters, so the description need not explain return values or arguments in depth. For a simple status-query tool this is largely sufficient. The only minor gap is not mentioning the expected pattern of pairing with import_shinryo_master, but for a zero-parameter read tool this is a small omission.

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 tool takes zero parameters and schema coverage is trivially 100%, so there is nothing for the description to add about argument semantics. The baseline for a zero-parameter tool is 4, and the description appropriately focuses on the return value instead of parameters.

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 ('返します' - returns) and resource (診療報酬マスターの一覧), scoped to locally-imported masters with their publication dates. It implicitly distinguishes itself from siblings like import_shinryo_master (which imports) and search_shinryo_hoshu (which searches billing codes), since this tool reports ingestion status rather than performing those actions.

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 for when to use this tool versus alternatives. The natural counterpart, import_shinryo_master, is a sibling but the description never points to it or explains that this tool is for verifying what has been ingested before importing/searching. Usage context is only implied, not stated.

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