calculate_portfolio_exposure

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

With no annotations, the description carries full burden for behavioral disclosure, but it only states it calculates exposure. It does not mention if it is read-only, requires authentication, has side effects, or any rate limits, leaving significant transparency gaps.

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 very concise at one sentence, but it sacrifices informativeness. While there is no waste, the content is insufficient, making it neither well-structured nor adequately helpful.

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?

Given no output schema and zero parameters, the description should explain what the tool returns and how to interpret it. It only states 'per-position exposure vs MAX_POSITION_SIZE_PERCENT (paper portfolio)' without clarifying output format, metrics, or the threshold value, leaving the tool underspecified.

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 tool has zero parameters, so the description does not need to explain parameter semantics. However, it could add meaning about the output or calculation, but it does not. A baseline of 3 is appropriate for a parameterless tool with a minimal description.

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 verb 'calculate' and the resource 'portfolio exposure' per position. It specifies it's for a paper portfolio and mentions the threshold MAX_POSITION_SIZE_PERCENT, which distinguishes it from other portfolio-related tools like check_portfolio_concentration.

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?

No guidance is provided on when to use this tool versus alternatives. The description does not mention when to use it, when not to, or any prerequisites, leaving the agent without context for selection.

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