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

Annotations already declare readOnlyHint=true, idempotentHint=true, destructiveHint=false and openWorldHint=false, so the safety profile is covered structurally. The description contributes nothing beyond that — no statement of what is returned, whether results are scoped to a workspace/period, pagination, or side effects.

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 description duplicates the identical URL sentence twice, which is pure waste, and the remaining content is a mechanical operation-ID string. There is no front-loaded explanation of purpose.

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 nested-object query endpoint with no output schema and no documented parameters, an agent needs meaning for the query filters and the shape of the response. The description provides neither, leaving only a pointer to 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% and there are two parameters (a free-form 'query' object with additionalProperties and an empty 'params' object). The description says nothing about what should go in 'query' — no filter keys, no date/period semantics — so it fails to compensate for the coverage gap.

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 only restates the tool name as a raw URL path ('GET /api/accounting/journal-close/dimension-sources') twice. It never explains what a 'dimension source' is or what the endpoint returns, so an agent cannot differentiate this from the sibling get_accounting_journal_close_dimension__fbf666ceb0ede2498b035498.

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 guidance and no named alternative among the many journal-close siblings. The only actionable pointer is the note that describe_operation provides native request schemas, which is a hint about schema discovery rather than about when this tool is appropriate.

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