Update Project Exchange Rates

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

Annotations already indicate a write operation (readOnlyHint=false). The description adds that it 'returns the modified object on success', providing useful behavioral context. No contradictions. Could mention permissions or error conditions but adds value beyond 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 four sentences, front-loaded with the action, then usage, then return behavior, then parameters. Every sentence is purposeful with no redundancy. The API reference is a bonus but not excessive.

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 complexity (3 params, high schema coverage, no output schema), the description covers purpose, usage, return type, and required params. It does not explain the internal structure of 'exchange_rates' array, but the schema indicates it's an array of objects, leaving some ambiguity. Overall adequate for an agent.

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 detailed descriptions for all parameters. The description merely restates required parameters without adding new meaning. Baseline of 3 is appropriate since the schema already does the heavy lifting.

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 specifies the action ('Update'), the resource ('project exchange rates'/'Currency Configurations'), and the scope (by company and project ID). It clearly distinguishes from sibling tools like create or get by indicating it's for existing configurations and partial updates.

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?

It states when to use this tool ('update an existing Currency Configurations') and lists required parameters. However, it does not explicitly exclude scenarios like creation (create_project_exchange_rates) or provide alternatives, so it's clear but lacks comprehensive guidance.

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