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 by structured data. The description adds only the pointer to describe_operation for native request schemas, and says nothing about pagination, default page size, or response shape for what is presumably a large list endpoint.

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, but the first is duplicated verbatim, which is pure waste rather than concision. The one genuinely informative clause (describe_operation pointer) is buried after system-generated noise like the operation ID hash.

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?

With no output schema, 0% parameter coverage, and a nested free-form query object, the description must carry the load — and it does not. The single redeeming element is redirecting to describe_operation, which at least tells the agent where the missing schema lives, but nothing here explains the resource well enough to invoke confidently.

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 the two parameters are opaque: a free-form 'query' object with additionalProperties {} and an empty 'params' object with additionalProperties false. The description does not name a single acceptable query key or explain why 'params' is empty and closed, so an agent cannot construct a valid filter without another round trip.

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 is a verbatim restatement of the name and title ('journal-entries: GET /api/journal-entries'), repeated twice. It never states what a journal entry is, what listing semantics apply (paging, filtering, fiscal period), or how it differs from close siblings like get_journal_entries_by_id or get_journal_entries_readiness.

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?

The only directive is 'describe_operation provides native request schemas,' which is guidance about schema discovery, not about when to select this tool. No exclusions or alternatives are named, so the agent must infer selection purely from the tool name against hundreds of siblings.

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