get_upgrades_downgrades

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

Since no annotations are provided, the description fully handles behavioral transparency. It discloses the ordering (most recent first), the content (each entry includes firm, from/to grade, and action), and the limitation to equity instruments. No contradictions with missing annotations.

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 concise and well-structured, front-loading the main purpose in the first sentence and adding important details in the second. Every sentence adds value with no redundancy or filler.

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 presence of an output schema and the relatively simple nature of the tool (2 parameters, no complex nested structures), the description is complete. It explains the return order, content, and scope limitations, which fully covers what an agent needs to decide to invoke this tool.

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 100%, so with a baseline of 3, the description does not add additional meaning beyond what the schema already provides for the parameters (symbol and limit). The description adds value through context about the return data but not specifically for param semantics.

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 tool retrieves recent analyst rating changes (upgrades/downgrades) for a Yahoo symbol. It specifies the resource (rating changes) and the verb (get), and distinguishes it from sibling tools like get_recommendations and get_quote by its focus on rating actions.

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 clear context for when to use the tool: for equity symbols, noting it returns empty results for ETFs, funds, and crypto. It does not explicitly state when not to use it or mention alternatives among siblings, but the equity-only limitation is helpful guidance.

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