get_recommendation_changes

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

With no annotations, the description must fully disclose behavior. It states 'retrieve changes' but does not specify what constitutes a change (e.g., time range, type of change), the return structure, or whether it is read-only. The return type is given as 'Any', which is vague.

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 short and front-loaded, but it includes redundant 'Args:' and 'Returns:' formatting that could be eliminated. Overall, it is concise but not optimally structured.

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's simplicity (one parameter, no annotations, no output schema), the description is insufficient. It does not explain the format or nature of the recommendation changes data, leaving the agent with incomplete information to use the tool correctly.

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?

Only one parameter 'ticker' with description 'The symbol of the security'. This adds minimal meaning beyond the schema, which already indicates it is a required string. Schema description coverage is 0%, so the description should provide more context but does not.

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?

Clearly states the verb 'retrieve' and the resource 'changes in analyst recommendations' for a specific ticker. The description distinguishes this from the sibling tool 'get_analyst_recommendations', which likely returns current recommendations.

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?

Provides no guidance on when to use this tool versus alternatives. Does not mention the existence of 'get_analyst_recommendations' as a sibling for current recommendations, nor any prerequisites or context for using the tool.

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