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

Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, covering the safety profile. The description adds the required chain, which is workflow context rather than behavior. It does not describe error scenarios, rate limits, or what happens if the applicant is not found, but given the strong annotation coverage, a score of 3 is appropriate.

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 a single, front-loaded sentence that states the purpose and immediately follows with the essential chain. There is zero waste, and the most critical information (the required sequence) is placed at the beginning. This is an exemplary concise structure.

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 simple read-only get tool with only two required parameters and full schema coverage, the description is nearly complete. It provides the critical chain that ensures correct usage, and annotations cover the operational context. The only minor gap is the absence of any note about return behavior or error conditions, but these are not essential for a basic get operation.

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 description coverage is 100%, with each parameter (job_id, account_id, applicant_id) already documented in detail. The description itself adds no additional parameter semantics beyond the schema, so it meets the baseline of 3 for tools with full schema coverage.

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 states a clear verb ('Get') and a specific resource ('one applicant to a LinkedIn Classic job'), and it explicitly differentiates the Classic context from the Recruiter variant through the phrase 'LinkedIn Classic job'. The required chain also clarifies the exact role this tool plays within the broader workflow, distinguishing it from sibling tools like linkedin_classic_list_job_applicants.

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 a precise usage chain: 'owned Classic job -> job_id -> list applicants -> applicant.id -> this tool', which tells the agent exactly the prerequisite steps needed before invoking this tool. It does not explicitly name alternatives or state when not to use it, but the chain implies the correct context (Classic vs. Recruiter) and the need for a prior listing step.

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