Get a single memorandum entry

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

Annotations already declare readOnlyHint, idempotentHint, and destructiveHint, so the safety profile is clear. The description adds that the operation returns the entry including all line items and shows the endpoint path, providing useful behavioral context beyond the annotations.

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 is short and front-loaded, with the core action in the first sentence. The endpoint line and the line-items detail add value, though the first sentence is slightly redundant with the title.

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-item GET tool with only two parameters and strong annotations, the description is complete enough for correct invocation. It states the line-item return behavior even without an output schema. Minor additional details about error behavior are not essential here.

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 schema describes both parameters fully with 100% coverage, so the description does not need to add parameter details. It mentions the ID-based lookup, but this does not meaningfully extend the schema documentation. Baseline 3 is appropriate.

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 uses a specific verb and resource: 'Get a single memorandum entry' and clarifies 'by ID, including all line items.' This clearly distinguishes it from list_memorandum_entries and other mutation tools such as create_memorandum_entry and update_memorandum_entry.

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 description clearly implies use when retrieving one specific memorandum entry by ID, contrasting with listing operations. It does not explicitly state when not to use it, but the single-entry language and sibling tool names provide sufficient context for an agent to choose correctly.

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