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

Annotations already declare readOnlyHint=true and openWorldHint=true, so the safety profile is covered. The description adds the underlying REST path (GET /accounts/{id}), which helps an agent reason about the API, but says nothing about failure behavior for a missing/invalid id or whether the full account object is returned.

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 short fragments, front-loaded with the resource and scope; nothing is padded. The endpoint sentence is close to redundant with the first but does add API-mapping context.

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 simple single-record read with full schema coverage and safety annotations, the essentials are present. With no output schema, though, the description could have said what an account entry contains or what happens on a bad id, which would make it self-sufficient.

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?

The single id parameter is fully documented in the schema (100% coverage) with type and bounds, so the schema carries the parameter burden. The description only restates that lookup is keyed by id, adding no format or source guidance beyond the schema.

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?

States a specific resource (one chart-of-accounts entry) and the retrieval key (by id), which implicitly separates it from jurnal_list_accounts. It does not name the list sibling explicitly, so an agent must infer the single-vs-many distinction, but the core purpose is unambiguous.

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?

'by id' implies this is for looking up a known account rather than browsing, which points an agent away from jurnal_list_accounts. However, there is no explicit when-to-use or when-not-to-use statement, and nothing about what to do if the id is unknown.

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