journal_get_entry

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

With no annotations, the description carries the full burden. It discloses that the response includes AI analysis and insights, which is useful behavioral context. However, it does not mention error behavior, authorization needs, or any side effects, though the verb 'Get' implies a read-only operation.

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 a single, front-loaded sentence that directly states the action and key context without any wasted words. It is concise and immediately informative.

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 GET-by-ID tool with two parameters and no output schema, the description covers the main return content (the entry) and the optional analysis. While it lacks error-case details, the overall context is sufficient given the tool's low complexity and sibling context.

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 coverage is 100%, so the parameters are already documented. The description adds context about AI analysis, which aligns with the include_analysis parameter, but does not provide additional syntax or format details. Baseline 3 is appropriate given the schema handles parameter documentation.

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 clearly states the action ('Get'), the specific resource ('a specific journal entry'), and the method ('by ID'), which distinguishes it from sibling tools like list_entries and search. It is a specific verb+resource+scope construction.

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 provides no explicit when-to-use or exclusions, only implying via the name that it is for fetching a single entry by ID. It does not mention alternatives like list_entries or search, leaving the agent to infer the appropriate use case.

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