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 says 'daily stock price history' but omits details like rate limits, data range back, or what fields are returned (open, high, low, close, volume). The parameter 'outputsize' hints at compact/full but is unexplained.

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?

One sentence, no fluff. Could be expanded without losing conciseness, but current form is efficient.

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 tool with 3 parameters, no output schema, and no annotations, the description is too minimal. It lacks information on return format, authentication, data range, or any caveats. The parameter 'api_key' is not mentioned at all.

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 description adds no parameter details (e.g., symbol format, API key necessity, meaning of compact vs full). Does not compensate for low schema coverage.

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 'Get daily stock price history from Alpha Vantage.', specifying the verb (Get), resource (daily stock price history), and data source. It distinguishes from sibling tools like stock_intraday (intraday) and stock_quote (current 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 vs alternatives (e.g., stock_intraday for intraday, stock_quote for current price). Does not mention use cases or prerequisites like API key requirements for full history.

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