Configure network public forwarding

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

Goes well beyond the destructive/idempotent/openWorld annotations: it discloses the credential scope (networking:read vs networking:manage, with full/read denied), backend enforcement of ownership, feature availability and 2FA locks, and the pending-vs-failure semantics of the returned operation with reason_code/reason_kind polling rules. This is exactly the operational context an agent needs for a mutating, asynchronous call.

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?

Purpose is front-loaded, but the body is a dense single paragraph stacking polling, reason_code, retry and permission rules with heavy nesting. The content is mostly useful, but it would read better as distinct short statements rather than one long run-on block.

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 destructive, asynchronous mutation with no output schema, the description covers permissions, approval, idempotent recovery and operation-status interpretation thoroughly. The remaining gap is the meaning and conflict behavior of expected_generation, which is undocumented in both schema and description.

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 50%: binding_id and idempotencyKey carry their own descriptions, and the description reinforces the idempotency-key preservation rule. However it says nothing about expected_generation, which is a required optimistic-concurrency token, and the phrase 'one backend per listener' sits awkwardly beside the schema's backends array of 1-64 items.

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 opening sentence names a specific verb (Configure) and resource (an existing reserved forwarding binding's TCP/UDP listeners), and notes that proxy load balancers are refused, which separates it from LB-listener siblings. It never names an alternative tool by name, so differentiation is inferred rather than explicit.

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 a clear precondition workflow: read capabilities and owned resource state first, obtain approval for the exact change, and never auto-retry on transport uncertainty. It stops short of pointing to the specific read tools (get_network_public_binding, get_networking_capabilities) or an alternative write tool, so the agent must infer which siblings to call.

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