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

With no annotations, the description carries the full burden. It explains the create/update semantics and the return format, but does not disclose side effects like overwriting behavior, atomicity, or permissions. This is adequate but has gaps.

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 well-structured with Args and Returns sections, front-loaded with a clear purpose sentence. The nested bullet format is appropriate for the complex request object, and each line contributes useful information.

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 description covers the request structure, parameter semantics, and return status for each key, which is sufficient for invoking the tool. It lacks some operational context like error handling or prerequisites, but given the presence of an output schema and the detail provided, it is nearly complete.

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 0%, but the description compensates thoroughly by explaining every parameter in detail, including ProjectKey fallback, ItemId semantics, and Resources structure. This adds significant meaning beyond the raw schema.

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 opens with 'Save multiple translation keys with their translations to modules in a project,' which clearly identifies the action (save), the resource (translation keys with translations), and the target (modules in a project). This distinguishes it from siblings like get_module_keys or publish_translation, making the purpose unambiguous.

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 contextual guidance on create vs. update via the IsNewKey and ItemId parameters, clarifying when each is used. However, it does not explicitly name alternatives or state exclusions, so while usage context is clear, it stops short of full guidance.

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