ta_slug_macd_latest

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

Without annotations, the description should disclose key behaviors like read-only nature, reliance on defaults, and that it returns a single datapoint. It only states 'Latest MACD datapoint', missing important context about parameter implications.

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 (3 words), but it is too brief and lacks structure. It does not front-load key details or provide a helpful overview.

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 the tool has 8 parameters, no output schema, and no annotations, the description is severely incomplete. It fails to explain what 'latest' means, the output format, or how parameters affect results.

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% with descriptions for all 8 parameters, so baseline is 3. The description adds no additional meaning beyond what the schema already provides.

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 returns the latest MACD datapoint, which is specific and aligns with the tool name. However, it does not distinguish from sibling tools like 'ta_slug_macd' or other 'latest' variants.

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 on when to use this tool versus alternatives such as 'ta_slug_macd' for historical data or other TA tools. The description lacks any context about use cases or prerequisites.

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