Commit a freee monthly attendance action

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

Annotations already mark this as destructive, non-read-only, and non-idempotent. The description goes further by disclosing that the agent may validate the fingerprint and continue without a second prompt, and by warning never to retry an unknown write. This is meaningful behavioral context beyond the annotations and does not contradict them.

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?

Two sentences with no filler, front-loaded with the core action and followed by essential behavioral guardrails. Every clause earns its place, including the authorization condition and the retry warning.

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 destructive, non-idempotent commit tool with no output schema, the description plus schema cover authorization, sequencing, fingerprint handling, and safety. It does not describe post-commit outcomes or error responses, but that is not required given the annotations and open-world hint.

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%, and the schema already gives rich semantics for action, period, confirm, and fingerprint. The description adds only a brief echo of fingerprint validation ('validate the fingerprint'), so it does not materially improve on the schema.

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?

States a precise action ('Submit or withdraw'), a specific resource ('one real monthly attendance application'), and a clear phase ('after its matching preview'), which distinguishes it from the matching prepare tool and other commit tools. The scope is unambiguous, so an agent knows exactly what this tool does.

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?

Provides clear when-to-use context: after the matching preview, only when the exact action or an active scoped business policy is user-authorized, and with fingerprint validation. It does not explicitly name sibling alternatives or state when not to use it, but the sequencing and authorization conditions are strong enough to guide selection.

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