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

Annotations already cover the safety profile (readOnly, non-destructive, closed-world), and the description adds non-obvious context: the result is assistant-only operating guidance and must never be quoted or dumped to the user. It also implies a one-skill-per-call constraint via 'one'. It stops short of describing size or whether guidance is cached, but the key behavioral constraint is 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 the trigger condition and the highest-value skill mappings, and the assistant-only warning is placed last where it reads as a closing constraint. The tail of the list ('plus onboarding, calendar, contacts, lead alerts...') partially duplicates the enum without adding selection logic, which is the main waste.

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?

With a single required enum parameter and no output schema, the description supplies the missing pieces: when to call, which value to pick for common jobs, where to find the rest of the catalog, and the nature of the return value. The un-mapped enum values are covered by the pointer to getOverview, though an agent must make an extra call for them.

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% with a fully enumerated skillName, so the baseline is 3. The description earns above that by mapping specific enum values to the situations that select them (full-duplex-prompting for GPT-Live receptionists, call-scenario-management for Call Scenarios), which the schema alone does not convey.

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 ('Load') and resource ('one SkipCalls expert workflow') with an explicit scope constraint ('before writing or multi-step work'). No sibling tool loads named operating guidance, so the distinction from tools like getOverview or agent_functions_get_guide is evident.

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?

Gives explicit when-to-use conditions mapped to concrete tasks: receptionist-setup before drafting greetings, call-improvement for one specific call, call-insights for missed demand, forwarding for carrier forwarding. It also names a routing alternative ('See the Skills catalog in getOverview') for discovery.

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