stock_daily

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

With no annotations, the description must disclose behavior. It only mentions the data source, but does not specify rate limits, whether the operation is read-only, or what fields the history includes (OHLC, volume). This is insufficient for safe selection.

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?

Single sentence with no unnecessary words. However, it could benefit from more structure or bullet points to convey additional context without losing conciseness.

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?

The tool has no output schema and low schema coverage. The description lacks details about return values (e.g., time series format), the effect of 'compact' vs 'full', and authentication requirements, making it incomplete for effective use.

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 description coverage is only 33% (only outputsize has a description). The tool description adds no extra meaning to parameters like symbol or api_key, nor does it clarify the difference between 'compact' and 'full' beyond the schema's minimal text.

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'), resource ('daily stock price history'), and source ('from Alpha Vantage'). The name 'daily' distinguishes it from sibling tools like 'stock_intraday' and 'stock_quote'.

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 (e.g., stock_intraday for intraday data) or what prerequisites (e.g., API key) are needed. The description is too brief to indicate proper context.

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