get_macd

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

No annotations are provided, so the description must cover behavioral traits. It describes MACD calculation and output interpretation but omits side effects, error handling, or access requirements. As a read-only indicator tool, it implicitly suggests safety, but lacks explicit disclosure.

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 well-structured with sections for interpretation, arguments, and returns. It is informative but could be slightly more concise, especially the interpretation section which is helpful but somewhat lengthy.

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 8 parameters, one required, and an output schema present, the description covers all aspects: parameter descriptions, defaults, allowed values, and output interpretation. It is complete for an agent to understand usage without external resources.

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 provides detailed explanations for all 8 parameters, including defaults (e.g., fast=12, slow=26), allowed values (e.g., interval options), and format examples (e.g., ISO dates for start_time). Since the schema has 0% description coverage, the description fully compensates.

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 it retrieves MACD for a cryptocurrency and explains what MACD indicates. However, it does not explicitly differentiate from sibling indicators like get_rsi or get_sma, which also analyze price trends.

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 interpretation of MACD signals but lacks explicit guidance on when to use MACD over other indicators or when not to use it. No alternatives or exclusions are mentioned.

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