Log Journal Entry

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

The annotations provide minimal behavioral hints (all false), so the description carries the burden of disclosure. It adds valuable context by mentioning 'atomic file writing' (ensuring data consistency) and 'de-duplication protection' (preventing duplicate entries), which are non-obvious behavioral traits beyond what schema fields convey.

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 two concise sentences. The first sentence states the primary purpose, and the second adds two key behavioral details. No filler or redundancy, and it is well-structured and front-loaded.

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 write-only journal tool with six fully documented parameters and no output schema, the description adequately covers what it does and key implementation traits (atomicity, de-duplication). It does not mention return values, but that is not essential given the absence of an output schema. The description is sufficiently complete for effective tool selection and invocation.

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 description does not elaborate on individual parameters, but the input schema has 100% coverage, with each parameter already having a meaningful description. Therefore, the description adds no significant parameter-level value, and the baseline of 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 the specific verb 'Logs' to state the tool's action, names the resource types ('trade, market thesis, or trading theorem'), and specifies the destination ('local Trading Journal database'). This clearly distinguishes it from sibling read-only tools like get_journal_summary and get_open_positions.

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 implies the tool is for logging journal entries, but it does not explicitly state when to use it versus alternatives, nor does it mention any exclusions or prerequisites. No alternative tools are named in the description, so usage guidance is only implied rather than explicit.

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