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

Annotations already communicate the safety profile (readOnly false, idempotent false, destructive false), so the description only needs to add useful context. It adds owner/admin restriction, batch behavior, the Virtuals fleet sync, and the zero-credit cost; it stops short of describing side effects like overwriting existing listings or reversibility, and it relies on the confirm_external_writes parameter to signal external writes.

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 dense sentences front-load the access restriction and action, then add the Virtuals fleet detail and cost. Every clause earns its place with no repetition of 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?

With a full output schema, 100% parameter descriptions, and annotations present, the description covers the critical non-schema facts: authorization, batch semantics, Virtuals scope, and cost. It could be more complete by naming the alternative management tool, but nothing essential to invoking it correctly is missing.

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 schema already explains providers, skill_keys, and confirm_external_writes. The description adds only a small amount of context (e.g., Virtuals syncs all six offerings), which maps to the providers parameter, but it does not carry the parameter-documentation burden.

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 names a specific verb-resource pair: batch-publishes/verifies ready Field Agents to registries, and adds admin-only scope plus the Virtuals six-offering fleet sync. It is clear on its own, but it does not explicitly differentiate from the closely named sibling manage_virtuals_field_agent_fleet, so some disambiguation still relies on names.

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?

It states clear context: owner/admin only, applies to 'ready' Field Agents, and costs 0 customer credits. It does not, however, state when to prefer this over sibling tools like manage_virtuals_field_agent_fleet or get_field_agent_registry_matrix.

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