Disable network product auto renew

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

Despite annotations already declaring the safety profile, the description adds substantial behavior: exact auth scopes required (networking:read vs networking:manage, with the note that full/read defaults do not grant networking), backend-enforced ownership/feature/2FA locks, and the async contract (accepted op is pending, poll in_progress, reason_code semantics, waiting vs failure). It also covers transport-uncertainty handling and forbids auto-retry — rich context an agent cannot get from annotations.

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 in the first sentence, and the dense operational guidance (auth, polling, retry policy) is genuinely relevant for an async mutation. It is long and somewhat sprawling in a single block, which slightly taxes readability, but almost every sentence carries useful information.

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 complex async mutation with no output schema, the description supplies everything needed: authorization requirements, ownership/2FA enforcement, and the full polling/return contract including reason_code and failure semantics. Nothing an agent needs to invoke and correctly interpret this tool 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 two UUID parameters (network_id, resource_id) are fully documented in the schema, establishing the baseline of 3. The description adds no additional meaning about which resource these IDs reference or how they relate, so it neither helps nor harms.

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+resource ('Disable automatic renewal') and immediately clarifies the scope: the paid product continues to its paid-until time, so the agent understands this only stops renewal rather than terminating the product. It does not explicitly differentiate from the near-identical siblings (disable_vpn_auto_renew, disable_public_address_auto_renew), so it falls short of a 5.

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 strong preconditions — read current capabilities and owned resource state first, and obtain approval for the exact change — which tells the agent when this call is appropriate. It stops short of naming alternatives or explicitly stating when-not to use it, so it is clear context without exclusion guidance.

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