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

Annotations already declare readOnlyHint, idempotentHint, destructiveHint=false and openWorldHint=false, so the safety profile is fully covered elsewhere. The description contributes nothing beyond that — no pagination behavior, no scoping rules (does query support filters? date ranges?), no note on what a missing contractId returns. It is not contradictory, just empty.

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?

Short, but the same endpoint path appears twice back-to-back with no added information the second time. Brevity here comes from under-specification rather than economy; there is no front-loaded statement of what the tool returns.

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?

No output schema exists, so the description should carry the burden of explaining return shape, and it does not. With a nested query object at 0% schema coverage and no examples, an agent cannot confidently construct a call without first invoking describe_operation.

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 0% for both parameters, and the description says nothing about contractId or the fully free-form query object (additionalProperties: {}). The single mitigation is the reference to describe_operation, which tells the agent where to look for request schemas but documents no semantics itself.

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 text is the raw endpoint path repeated verbatim, plus an operation ID. It implies reading journal entries scoped to a contract, but it never says 'retrieve journal entries for a contract' in a way that adds anything over the tool name and title. Among dozens of near-identical get_accounting_contracts_by_contractId__* siblings, an agent gets no help distinguishing what makes this one different.

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?

There is no when-to-use, when-not-to-use, or sibling routing guidance. The only actionable information is the pointer to describe_operation for native request schemas, which is a discovery hint rather than usage guidance. Alternatives such as get_journal_entries_readiness or get_accounting_journal_entries_by_id_ap are left entirely unaddressed.

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