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

Annotations declare destructiveHint=true and non-idempotent, and the description adds the crucial missing context: fixes require explicit conversation confirmation, must be previewed first, and the caller should follow the primary nextAction in the envelope. It does not describe what exactly gets overwritten by a fix, but the gating behavior is well disclosed.

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?

Front-loaded with purpose, then operations, then the confirm protocol; nearly every sentence earns its place within four short sentences. The one wasted/incorrect element is the listing of an operation ('uploaded') that does not exist in the schema.

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?

For a 14-parameter, multi-operation, destructive tool with a full output schema, the description covers the high-risk flow (preview/confirm/nextAction) adequately. It still leaves the operation semantics thin, and the operation list contradicts the enum, so an agent can't fully rely on it.

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%, so the baseline would be 3, but the description lists operations as 'check | uploaded | report | fix' while the schema enum allows only check, report, fix. An agent following the description could pass operation: "uploaded" and fail validation — a defect in the most important parameter.

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 concrete verbs and resources — check a saved resume or uploaded PDF, read its report, apply report-supported fixes — so the agent knows exactly what the tool family does. It does not differentiate itself from close siblings like summarize_resume or get_resume_statistics, which is the only thing keeping it from a 5.

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 confirm:false preview → repeat with confirm:true protocol is spelled out precisely, which is genuinely useful guidance for the destructive branch. However, the description never says when to choose check vs report vs uploaded, nor when to prefer this over sibling tools such as summarize_resume, so the routing guidance is only partial.

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