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

Annotations already declare readOnlyHint=true and openWorldHint=true, which cover safety and openness. The description adds that it returns an 'audited deliverable' and says inputs are validated server-side, which are useful behavioral traits. However, it does not elaborate on what 'audited' entails, or any other behavioral aspects like rate limits or error handling.

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 short and front-loaded with the title. It includes useful notes about validation and the deliverable. However, 'Gapup agent-payable C-suite expertise (CHRO)' and 'Reference case: Cas démo — Communication interne' are somewhat promotional and do not add practical information, so it is not a perfect score.

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 tool with nested object parameters, no output schema, and many siblings, the description is insufficient. It does not explain what the deliverable contains, how the parameters interact, or expected output shape. The sparse guidance leaves the agent to rely on the schema alone, which is incomplete.

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 only 20% (only async is described). The description does not compensate by explaining company, context, or audienceSegments. The phrase 'documented case fields' is vague and unhelpful. Field names in the schema provide some clues, but the description adds no meaningful parameter semantics.

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 indicates the tool is about internal communication for CHRO-level expertise and returns a structured, audited deliverable. However, it lacks a specific verb+resource combination; it does not clearly state whether it generates an assessment, a plan, or a report. It is not differentiated from sibling tools such as hr_benefits_esg_aligner or talent_intelligence.

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 no guidance on when to use this tool versus alternatives. It mentions 'send the documented case fields' but does not discuss prerequisites, exclusions, or typical scenarios. No alternatives are named.

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