Preview a freee monthly attendance approval action

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

The annotations already declare readOnlyHint, openWorldHint, idempotentHint, and destructiveHint=false. The description adds relevant behavioral context: no application is changed, ambiguous mappings produce no fingerprint, and confirmation is bypassed only for exact instructions/policies. This is consistent with the annotations and adds value beyond them, though it does not discuss auth or rate-limit considerations.

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?

Three dense sentences front-load the core operation and each sentence contributes information: what is reviewed, when matching applies, and what happens when mapping is ambiguous. The first sentence's long enumeration is heavy, but it communicates the content of the fingerprint without being redundant.

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 there is no output schema, the description leaves the return contract implicit: it says the tool 'bind[s] ... into a fingerprint' and that ambiguity 'produces no fingerprint', but it never explicitly states that the tool returns this fingerprint or that it should be passed to freee_monthly_approval_commit_action. The overall prepare/commit pattern is inferable from sibling names, but not spelled out.

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 parameters are already well documented. The description adds only indirect context ('one exact application' for id, 'requested approval/return action' for action), which does not materially expand on the schema 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?

The description identifies a specific verb ('Review') and resource ('one exact 月次勤怠締め application') and states the output concept ('bind ... into a fingerprint'). It establishes a preview-like, non-mutating behavior, but it does not explicitly name sibling tools such as freee_monthly_approval_commit_action or freee_monthly_approval_review to clarify the boundary, relying on the fingerprint jargon for differentiation.

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?

It gives a clear condition for use: 'For an exact instruction or active scoped business policy', and describes the behavior in ambiguous cases ('Ambiguous mapping produces no fingerprint'). It does not explicitly state when to prefer this over commit_action or review, so alternatives are not called out.

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