Generate Cover Letter

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

Annotations already flag destructiveHint=true and idempotentHint=false, and the description usefully adds the specific destructive consequence: it replaces the application's prior generated cover-letter entry. It does not cover auth requirements, output format, or regeneration limits, but it meaningfully explains what gets destroyed.

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?

Two compact sentences, front-loaded with the action and followed immediately by the replacement warning. Every sentence earns its place with no 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?

The mutation semantics are covered by annotations plus the replacement note, but with no output schema the description says nothing about what the generated letter looks like or how it is returned, and the tone parameter contract is undefined. Adequate but with clear gaps for a write 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 coverage is 0% and there are no enums, so the description must carry the load. It only gestures at 'requested tone' without listing valid tone values, and says nothing about application_id. Both required parameters remain under-specified.

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?

States a specific verb (generate) and resource (cover letter) scoped to an application and a requested tone. It clearly identifies the operation; there is no sibling cover-letter tool to be confused with, but the description does not explicitly differentiate from adjacent tools like tailor_application or generate_qa_answers.

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 versus alternatives, no prerequisites, and no indication of required application state. The description only asserts what the tool does, leaving the agent to infer context.

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