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

Strong disclosure beyond annotations: it states the call consumes one token, creates an XBOSS job, persists the result, and is explicitly not purely read-only despite a 'confirm' sounding like a lookup — consistent with readOnlyHint=false. The idempotency recovery semantics (lost response vs new execution) are also valuable. The closing sentence about institution data changes following 'per-tool execution content and existing confirmation procedures' is vague filler rather than concrete 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 prerequisite is correctly front-loaded, but the body is long and bilingual with some redundancy ('Without it, calling again remains a new request' restates the prior clause awkwardly). Several sentences, particularly the trailing Korean lines on institution data changes, do not add decision-relevant information.

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 4-parameter mutation-ish call with annotations and no output schema, the definition covers prerequisites, side effects, cost, and idempotency well enough to invoke correctly. It does not describe what the confirmation outcome represents or expected failure modes, a minor gap given no output schema exists.

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 coverage is 100%, so the baseline is 3, but the description adds real meaning for request_idempotency_key (when to reuse, when to mint a new one, that provider-level idempotency_key is a different field and must not be altered). account_link_id resolution is left to the schema, which already documents it well.

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 names a specific verb+resource ('Confirm certificate issuance fact'), matching the tool name and distinguishing it from the apply/history siblings by implying post-issuance verification. It does not explicitly contrast with history__detail or apply__submit, so an agent infers the boundary rather than reading it.

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?

Gives an explicit precondition ('REQUIRES prior fourinsure__session__login call with same account_link_id') and detailed rules for when to reuse vs regenerate request_idempotency_key. It never states when NOT to use this tool versus the history or apply siblings.

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