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

Annotations already declare readOnlyHint, idempotentHint, non-destructive and openWorldHint=false, so the safety profile is covered structurally. The description adds genuinely new behavioral content: the possible outcomes (published, under review, on hold with a stated reason), which tells the agent what the call can reveal. It does not describe latency or whether a not-yet-submitted URL errors versus returns an empty status.

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, front-loaded with the resource scope followed by the routing trigger, with essentially no filler. Slightly dense in the first sentence (three outcome states enumerated), but every clause contributes to tool selection.

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 one-parameter, read-only status check with no output schema, the description supplies the missing piece an agent needs: the set of status outcomes the call can return. It does not spell out what an identifier mismatch produces, but nothing critical for correct invocation is absent.

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?

There is a single parameter with 100% schema description coverage ('등록할 때 쓴 공식 사이트 URL'), so the schema already carries the semantics. The description restates the same idea via its reference to submit_korean_saas but adds no format, normalization, or matching caveats beyond the schema, which is the correct baseline of 3.

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 (확인한다/check) applied to a specific resource (the publication status of a service submitted via submit_korean_saas), and explicitly names the sibling tool that created the submission, so it is distinguishable from submit_korean_saas or get_korean_saas without opening either schema.

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 concrete when-to-use triggers in the form of user utterances ("saaskr 등록 됐어?", "왜 안 올라왔어?") and implies a prerequisite (a prior submit_korean_saas call). It does not, however, state any exclusions or name an alternative tool for adjacent questions, so it stops short of full routing guidance.

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